Progress 10/01/12 to 09/30/17
Outputs
Target Audience:Farmers (edible crops, organic crops) New farmers enrolled in GoFarm Hawaii New Farmers' Training program Farm Coaches of GoFarm Hawaii Extension Agents (Hawaii and other islands in the Pacific - Guam, Northern Mariana Islands) Natural Resources and Conservation Service scientists and agents (soil conservationists, soil health promoters) College students from College of Tropical Agriculture and Human Resources (CTAHR) Graduate students in CTAHR Exchange students from Japan, Thailand and Brazil Agricultural companies Sale representatives Scientists from Society of Nematologists Changes/Problems:We added a section on "Screenhouse Production for Pest Management" into this report due to receiving of 2015-2016 CTAHR Supplemental Fund. We also expanded several pest management approaches listed in our original objectives to be used in other crops not listed in the original proposal. What opportunities for training and professional development has the project provided?In 2017, two skilled APTs were hired to work on this project that help in various aspects from research, extension, outreach to publications. In addition, a total of three graduate students were involved in this project, one of which graduated this year. In addition, 3 visiting scholars (2 Ph.D. students, and 2 high school students) volunteer their time to participating in various projects of this program and learn research skill from our team. In addition, the PI provided guest lectures to three cohorts of GoFarm Hawaii New Farmers Training program in 2017 (approximately 34 students) located in Waimanalo, Waialua and Kauai. Visiting scholars: Xiaodong You (Osaka Prefectura University), Ph.D. candidate. April to June, 2017 Franciele Carneiro (University Federal deGoiás, Goiania, Brazil), Ph.D. candidate. May to Sep, 2017 Basith Cader (Wells International High School, Thailand), Junior High. June to Aug 2017. Abigail Sipes (St. Andrew High School, Honolulu), Junior High. Aug 2017 to present. How have the results been disseminated to communities of interest?To distribute the versatile use of cover crops as well as other non-chemical based IPM for crop production, the PI and co-PIs on this project had established a statewide extension and outreach team "Center of Rural Agricultural Training and Entrepreneurship". All of the outreach and extension activities from this hatch project are presented through collaborative efforts from this team. In 2017 alone, we hosted a total of 13 field days or workshops in 2017. These included a workshop/field day on "Managing insects and weeds in DIY screenhouses" at the Waimanalo DIY Screenhouse Field Day (Jan 28, 2017); "Nematode management" at Poamoho Field Day (Feb 4, 2017); "Cover Crop Calculator Week" at Magoon, Poamoho, Apuni Center in Hilo, and Kohala Center's demo farm in Honoka'a (March 13-18, 2017); "The fun of agricultural sciences" to University of Hawaii Pasefika Passion Pipeline Summer Program (June 13, 2017); "Plant Propagation Workshop" with CTAHR Cooperative Extension Hot Shot Team, Urban Garden Center (July 7-8, 2017); "LocalSeedfor Local Needs Field Day" with GoFarm Hawaii at Waimanalo Experiment Station (September 23, 2017); and "Insectary plants for edible crops in Hawaii" at Poamoho Experiment Station with HDOA (October 28, 2017). In addition, we also provide numerous guest lectures to the New Farmers Training Program, GoFarm Hawaii as listed above. What do you plan to do during the next reporting period to accomplish the goals?
Nothing Reported
Impacts
What was accomplished under these goals?
Objective 1 (Integrating insectary plants into crop production system in Hawaii). Although the original hatch project proposal focus on integrating insectary plants into hydroponic, aquaponics and aquaculture systems, over the last 5 years we had been conducting research and working with edible crop farmers across cropping systems from aquaculture to terrestrial cropping systems to promote the integration of insectary plants into 'Farm Scaping'. Besides multiple peer reviewed publications generated in the last 4 years, we added another peer review publication this year entitled "Effects of strip-tilled cover cropping on the population density of thrips and predatory insects in a cucurbit agroecosystem." This would be the third peer review publication related to insectary plants from this Hatch project, besides 3 other extension articles. Over the last 5 years, we compiled comprehensive information about how to use different plant materials to attract beneficial insects in Hawaii and conduct extensive outreach events to promote the use of insectary plants in Hawaii. Most recently, due to an invitation to submit a Specialty Crop Block Grant to HDOA, we generated a project entitled "Insectary Plants Distribution for selected specialty crops in Hawaii." Upon the completion on this project in October, 2017 we compiled a pictorial handbook on "Insectary Plants for Hawaii" which also include other settings that can attract different beneficial insects to agroecosystems in Hawaii. Along with the two YouTube videos we produced last year (https://youtu.be/BsN_3lC35wg and https://youtu.be/1stOru5I-a0), we hosted an Insectary Plant field day on Oct 28, 2017 and distributed the insectary plant handbooks to all attendees. The field day evaluation is remarkably positive, a YouTube video from the field day https://youtu.be/lNW6Bmo__Qs was posted at co-PI Sugano Facebook, and attracted interest from outer island's extension to call for similar field days. Objective 2. Integrating biofumigant crops into leafy green production to overcome soil borne diseases. In 2017, Graduate student, Philip Waisen, is currently working on his Ph.D. studying how to improve biofumigation effect of glucosinolate producing cover crops such as oil radish or brown mustard to suppress plant-parasitic nematodes on cucurbit crops that are very susceptible to root-knot nematode damage. He demonstrated that maceration of brassica cover crop, followed by tilling the crop residues into the soil and cover the soil with black plastic is most effective in capturing the biofumigants to suppress plant-parasitic nematodes in the soil with only transient effects on beneficial nematodes that can recover soon after crop planting. Objective 3. Integrating organic mulch into onion crop production for the management of Iris Yellow Spot Virus. Since we accomplished the onion study with organic mulch in 2016, we moved forward to examine the benefits of organic mulch from no-till cover cropping with black oat on corn. One M.S. student, Josiah Marquez, completed his 2.5 years of thesis research on "Evaluating effects of no-till cover cropping systems on indigenous entomopathogenic nematodes and fungi" in a corn agroecosystem where he demonstrated that the persistent organic mulch from no-till cover cropping with black oat are most efficient in maintaining soil moisture, reducing afternoon soil heat, and enhancing conservation biological control by providing favorable environment for entomopathogenic nematodes and fungi against thrips on corn. The student defended in Oct, 2017 and is preparing two manuscripts for journal submission. Objective 4. Integrating living mulch into tomato crop production for the management of tomato spotted wilt virus and yellow leaf curl virus. This objective was accomplished earlier. No additional living mulch work for tomato is conducted in 2017. Objective 5: Outreach program to educate farmers the versatile use of cover crops for above and below ground pest management as well as reducing fertilizer and pesticide inputs. Besides demonstration plots described in Objectives 1-4 using cover crops for above and below ground pest management, we finalized the "Cover Crop Calculator for Hawaii" project with a total of 10 prediction models of plant-available nitrogen (N) from cover crop based on % N content of the cover crops from 10 key agriculture areas in Hawaii from Oahu, Hawaii, Maui, Kauai and Molokai. This would help farmers to predict how much fertilizer they can cut back for crop production. We hosted a whole week of workshop on Cover Crop Calculator for Hawaii from March 14- 18, 2017 with co-PI Nick Andrew from Oregon State University. We also concluded a CTAHR Supplemental Fund project early this year (2017) on constructing DIY screenhouse for local farmers in Hawaii. Demonstration trials were conducted for cucurbit crops (zucchini, cucumber, kabocha) that suffered from fruit flies and pickleworms, brassica crops (kale) that suffered from damage of diamondback moth and imported cabbage worms, tomato that suffered from damage of fruit flies, and chili or bell peppers that suffered premature fruit drops from pepper weevils. Besides constructed 6 affordable screenhouses using 17-mesh screen with 5 farmers (Mele Judd, Jay Bost, Anthony Deluz, Dan Ching, Victor Perez from Monsanto), we hosted a field day demonstrating the comparison of 4 screen materials for screenhouse production at Waimanalo DIY Screenhouse Field Day on Jan 28, 2017. Our "DIY Screenhouse for insect management in the Tropic Part I and Part II" publications in Hanai'Ai Newsletter were most well received by many farmers. Overall, a total of 13 field days or workshops were hosted in 2017 to achieve the outreach objective.
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Manandhar, R., K.-H. Wang, C.R.R. Hooks, and M. Wright. 2017. Effects of strip-tilled cover cropping on the population density of thrips and predatory insects in a cucurbit agroecosystem. Journal of Asia-Pacific Entomology 192_R1.
- Type:
Theses/Dissertations
Status:
Accepted
Year Published:
2017
Citation:
Marquez, J. 2017. Evaluating effects of no-till cover cropping systems on indigenous entomopathogenic nematodes and fungi. M.S. Thesis, University of Hawaii at Manoa, Honolulu, HI. 148 pp. (defended on October 28, 2017; thesis submitted Nov 6, 2017).
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Kokalis-Burelle, N., R. McSorley, K.-H. Wang, S. Saha, R. McGovern. 2017. Rhizosphere microorganisms affected by soil solarization and cover cropping in Capsicum annuum and Phaseolus lunatus agroecosystems. Applied Soil Ecology 119: 64-71.
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Leslie, A., K.-H. Wang, S. Meyer, C. R.R. 2017. Hooks. Influence of cover crops on arthropods, free-living nematodes, and yield in a succeeding no-till soybean crop. Applied Soil Ecology 117-118: 21-31.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Waisen, P., K.-H. Wang, Z. Cheng, and B.S. Sipes. Effective termination methods of Brassica cover crops for suppression of plant-parasitic nematodes while enhancing soil health. Society of Nematology 56th annual meeting, Williamsburg, VT. Aug 13-17, 2017.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Marquez, J., K.-H. Wang, Z. Cheng and B.S. Sipes. Improving soil conditions for entomopathogenic nematodes with no-till cover cropping. Society of Nematology 56th annual meeting, Williamsburg, VT. Aug 13-17, 2017.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
You, Xiaodong, K.-H. Wang, S. Ching, Yukihiro Shimogami, and M. Tojo. Suppressiveness of vermicompost and its water extract prepared from moso-bamboo and kudzu mixture, against soil-borne plant pathogens and plant-parasitic nematodes. Asian Conference of Plant Pathology, Jeju, South Korea, September 13 to 16, 2017.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
You, Xiaodong, K.-H. Wang, and M. Tojo. Nematode suppressive effects of vermicompost teas prepared from bamboo and kudzu vs that from vegetable food waste. Society of Nematology 56th annual meeting, Williamsburg, VT. Aug 13-17, 2017.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Waisen, P. and K.-H. Wang. Will enhancement of biofumigation effect of barassica cover crops against plant-parasitic nematodes compromise their soil health promoting effect? CTAHR Student Research Symposium, Honolulu, HI. April 8, 2017 (Abstract #107).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Marquez, J., K.-H. Wang, B.S. Sipes and Z. Cheng. Improving soil conditions for entomopathogenic nematodes by conservation agriculture. CTAHR Student Research Symposium, Honolulu, HI. April 8, 2017 (Abstract 99).
- Type:
Websites
Status:
Published
Year Published:
2017
Citation:
CRATE: Center for Rural Agriculture Training and Entrepreneurship. CTAHR, University of Hawaii at Manoa. https://cms.ctahr.hawaii.edu/wangkh/ResearchandExtension/CRATE.aspx
- Type:
Websites
Status:
Published
Year Published:
2017
Citation:
Insectary Plants. CTAHR, University of Hawaii at Manoa. https://cms.ctahr.hawaii.edu/wangkh/ResearchandExtension/InsectaryPlants.aspx
- Type:
Websites
Status:
Published
Year Published:
2017
Citation:
Sustainable Pest Management Projects. CTAHR, University of Hawaii at Manoa. https://cms.ctahr.hawaii.edu/wangkh/ResearchandExtension/SustainablePestManagementProjects.aspx
- Type:
Journal Articles
Status:
Published
Year Published:
2017
Citation:
Mishra, S., K.-H. Wang, B. S. Sipes, and M. Tian. 2017. Suppression of root-knot nematode by vermicompost tea prepared from different curing ages of vermicompost. Plant Disease 101: 1-4.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2017
Citation:
Wang, K.-H., S. Ching, J. Marquez, P. Waisen, T. Radovich, N. Andrew, and D. Sullivan. Factoring nematode soil health indicators into plant available nitrogen mineralization rate for cover crops. Society of Nematology 56th annual meeting, Williamsburg, VT. Aug 13-17, 2017.
|
Progress 10/01/15 to 09/30/16
Outputs
Target Audience:Farmers (edible crops, organic crops) New farmers enrolled in GoFarm Hawaii New Farmers' Training program Farm Coaches of GoFarm Hawaii Extension Agents (Hawaii and other islands in the Pacific - Guam, Northern Mariana Islands) Natural Resources and Conservation Service scientists and agents (soil conservationists, soil health promoters) College students from College of Tropical Agriculture and Human Resources (CTAHR) Graduate students in CTAHR Exchange students from Brazil Agricultural companies Sale representatives Inmate farmers (Waiawa Correction Facility, Waipahu) Scientists from Society of Nematologists Changes/Problems:We added a section on "Screenhouse Production for Pest Management" into this report due to receiving of 2015-2016 CTAHR Supplemental Fund. All are reported under Objective 4 in the Achievement section. What opportunities for training and professional development has the project provided?-One newly graduated student from CTAHR PEPS Tropical Plant Pathology Master Program was hired to work on research and extension activities related to the Cover Crop Calculator and Screenhouse projects; -One graduate student completed her M.S. thesis working on integrating cover crop with vermicompost for nematode management; -One Ph.D. student is studying the use of oil radish as trap crop and biofumigant crops against plant-parasitic nematodes; -One M.S. student is studying cover cropping and conservation tillage as a conservation biological approach to enhance beneficial nematodes that parasitize soil-borne insect pests. -Six CTAHR undergraduate students sign up directed research projects to work on experiments funded by this Hatch project. -Two undergraduate visiting students from Brazil Scientific Mobility Program spent 2 months in the Summer of 2016 to gain hands-on experience on applied research in Hawaii working on our projects. -Forty four new farmers received training through our extension and outreach program - guest lectures on cover crop and pest management; hands-on training to prepare field plots for crop planting. How have the results been disseminated to communities of interest?We organized 4 field days/conferences open to all farmers on the Island of Oahu and another field day/workshop open to the agriculture professional (extension agents) throughout the state of Hawaii. The PI and co-PIs were invited to present at different events include 2015 Hawaii Farmer's Union annual meeting in Wailuku, Maui; First NRCS Pacific Islands Area (PIA) Cover Crop Training at Plant Material Center, Hoolehua, Molokai; Ag Day at the Capitol, Honolulu, Oahu; Inmate farmers training at Waiawa Correction Facility, Waipahu, Oahu. Disseminate updated and informative research outcome through well-organized websites and video clips at http://www.ctahr.hawaii.edu/WangKH Collaborate with GoFarm Hawaii New Farmers training program to teach new farmers (http://www.gofarmhawaii.org/blog/agxposure-at-ctahr-poamoho) What do you plan to do during the next reporting period to accomplish the goals?Examine the best field technique to optimize the use of oil radish cover crop as trap crop and biofumigation crops against root-knot and reniform nematodes. Summarize all studies and outputs into an extension handbook that can be used by New Farmers' Training program.
Impacts
What was accomplished under these goals?
Despite all the plant resistance breeding and improved pesticide efficacy efforts, farmers in the state of Hawaii increased the use of pesticide by 7% from 2007 to 2012 (Hawaii Census of Agriculture, 2013). The overall goal of this project is to reduce pesticides and synthetic fertilizer inputs and promote self-sustainable agricultural systems in Hawaii. The objectives achieved here help to mitigate farmers' reliance on pesticides and fertilizers inputs. In Objective 1 (Integrating insectary plants into aquaponic and hydroponic production system in Hawaii) and Objective 3 (Integrating organic mulch into onion crop production for the management of thrips), we promote aquaponics that can recycle fish waste to reduce fertilizer inputs. A graduate student working on the project published a scientific article in Biological Control 91: 1-9 last year to demonstrate how to integrate insectary plants into an aquaponics / hydroponic system. In addition, we completed two green onion field trials and published a scientific article in Agriculture, Ecosystems, & Environment 224: 75-85 to demonstrate how to integrate cover crop residues as organic mulch in a no-till farming system to suppress wilt damage on green onion caused by thrips, purple blotch fungal disease, and leaf miners. During this project period, the post doc working on this project presented a poster at the Entomological Society of America (ESA) Conference in 2015. Between 2015-2016, we gave four guest lectures on the use of insectary plants / cover crop organic mulch to reduce pesticide use to four cohorts of new farmers in GoFarm Hawaii New Farmers' Training program (44 students taking GoFarm Training at Windward Community College, Leeward Community College, Kauai Community College and Waimanalo Experiment Station). Two new YouTube videos were posted online with the help of a formal CTAHR graduate and an Assistant Extension Agent (https://youtu.be/BsN_3lC35wg and https://youtu.be/1stOru5I-a0) to summarize how to use insectary plants for different crops targeting on different pests. For Objective 2 (Integrating biofumigant crops into leafy green production to overcome soil borne diseases), a total of three field trials were completed to evaluate the effect of oil radish as a biofumigant crop (producing toxic gases to kill plant-parasitic nematodes) prior to a vegetable crop production. We modified the study to evaluate cucurbit crops due to farmers concern about root-knot nematodes on cucurbit crops. In the first two trials, oil radish was planted as a trap crop for root-knot nematodes for 2 and 3 weeks, respectively. Roots were then harvested and leaf residues were returned to the soil as surface mulch, covered with weed mat for one week to trap the biofumigant. This was compared to bare ground control without oil radish. Although oil radish did not suppress root-knot nematodes in these trials, it enhanced the cucurbit growth and yield as compared to the control. In the third trial, oil radish 'Sod Buster' was grown for either 2, 4, 6 and 8 weeks compared to bare ground control. Growing oil radish for 4 weeks followed by tilling the crop residues into the soil after harvesting the tap roots significantly suppressed root gall numbers on the pumpkin crop grown subsequently. The results were published in a M.S. thesis in the summer of 2016, and a manuscript is currently being prepared for publication by the graduate student. This result was shared with GoFarm new farmers in a form of a guest lecture (6 students) and presented by a graduate student at the Sustainable and Organic Agriculture Program's Extension and Research Update, Waimanalo Experiment Station (50 attendance). Objective 4 (Integrating living mulch into tomato crop production for the management of tomato spotted wilt virus and yellow leaf curl virus). The PI received a CTAHR Supplemental Fund in 2015 to integrate screenhouse production with cover crops for arthropods management on tomato that suffer from insect transmitted viruses, cucurbit crops that suffered from fruit flies and pickleworms, brassica crops that suffered from Lepidopteran pests. We constructed 6 affordable screenhouses using 17-mesh screen with 5 farmers (Mele Judd, Jay Bost, Anthony Deluz, Dan Ching, Victor Perez from Monsanto). The farmers grow crops of their choice inside and outside of the screenhouses for our team to monitor insect pests and yield production. A summary of these studies were presented at three field day events with accumulative attendance of 250 people: 1) Advancing Oahu's Edible Crop Industries-Mini Conference. Turtle Bay Resort, Turtle Bay; 2) Vegucation Farmer Workshop, Hawaii Farm Bureau, HDOA, HARC, Monsanto Hawaii, Kunia; and 3) Sustainable and Organic Agriculture Program's Extension and Research Update, Waimanalo Experiment Station, Waimanalo. Results are encouraging and well testified by the participating farmers. This is summarized at the PI's website: http://www.ctahr.hawaii.edu/WangKH/Downloads/2016_Organic_SPM.pdf. Objective 5 (Outreach program to educate farmers on the versatile uses of cover crops for above and below ground pest management as well as reducing fertilizer and pesticide inputs). All extension and outreach activities related to Objective 1-4 are reported in the previous paragraphs. In addition, we received another award from a National NRCS CIG program on a project entitled "Promoting the use of Cover Crop Calculator for the Tropics as Nitrogen Management Tool and the Use of Cover Crops for Soil Health Management Guideline" that generated a "Cover Calculator for Plant Available Nitrogen" for Hawaii made available at http://www.ctahr.hawaii.edu/WangKH/cover-crop.html. This provides farmers with a clearer estimate on how much fertilizer to reduce from growing cover crops. This is summarized in http://www.ctahr.hawaii.edu/WangKH/Downloads/2016_Cover_crop_calculator_Updates.pdf. A field day was organized to present this Cover Calculator at the Waimanalo Experiment Station in collaboration with our collaborator, Dr. Dan Sullivan, from Oregon State University (> 50 people attended this event). We were invited to another 4 events throughout the states to present our Cover Crop Projects.
Publications
- Type:
Theses/Dissertations
Status:
Published
Year Published:
2016
Citation:
Mishra, S. 2016. Suppressive Effects of Vermicompost Tea on root-knot nematodes, Meloidogyne spp. M.S. Thesis, University of Hawaii at Manoa, Honolulu, HI. 87 pp.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Wang, K.-H., J. Sugano, J. Uyeda, T. Radovich, S. Chiang. 2016. Center of Rural Agricultural Training and Entrepreneurship (CRATE). 2016 NIFA AFRI Small and Medium Sized Farms Project Directors Meeting, SpringHill Suites, Virginia Beach, VA. Sept 19-20, 2016.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Wang, K.-H., S. Ching, J. Marquez, S. Mishra, P. Waisen, and Z. Cheng. 2016. Relationships between cover crop plant available nitrogen mineralization rate and nematode soil health indicators. Society of Nematologists/Organization of Nematologists in Tropical Agriculture, Montreal, Canada. July 18-22, 2016.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Waisen, P., K.-H. Wang, Z. Cheng and B. S. Sipes. 2016. Developing effective management strategies against plant-parasitic nematodes using oil radish in Hawaii. Society of Nematologists/Organization of Nematologists in Tropical Agriculture, Montreal, Canada. July 18-22, 2016.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Marquez, J., and K.-H. Wang. 2016. Effects of organic mulch on indigenous entomopathogenic nematodes and entomopathogenic fungi in a no-till cropping system. CTAHR Student Research Symposium, Honolulu, HI. April 8, 2016.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2016
Citation:
Waisen, P. and K.-H. Wang. 2016. Screening oil radish (Raphanus sativus) varieties for nematode management through trap cropping and biofumigation effects. CTAHR Student Research Symposium, Honolulu, HI. April 8, 2016.
- Type:
Other
Status:
Published
Year Published:
2016
Citation:
Marquez, J., K. Matsuda, and K.-H. Wang. 2016. Improving Conservation Tillage with Conservation Agriculture Practices. H?naiAi Newsletter June/July/Aug 2016. http://www.ctahr.hawaii.edu/WangKH/soil-health.html or at http://myemail.constantcontact.com/News-from-the-Sustainable-and-Organic-Program---CTAHR.html?soid=1102675671876&aid=emYOxhlKJic
- Type:
Journal Articles
Status:
Published
Year Published:
2016
Citation:
Quintanilla-Tornel, M.A., K.-H. Wang, J. Tavares, C.R.R. Hooks. 2016. Effects of mulching on above and below ground pests and beneficials in a green onion agroecosystem. Agriculture, Ecosystems, & Environment 224: 75-85.
- Type:
Websites
Status:
Published
Year Published:
2012
Citation:
http://www.ctahr.hawaii.edu/WangKH/cover-crop.html (update 2016)
- Type:
Websites
Status:
Published
Year Published:
2014
Citation:
http://www.ctahr.hawaii.edu/WangKH/CRATE.html (update 2016)
- Type:
Websites
Status:
Published
Year Published:
2013
Citation:
http://www.ctahr.hawaii.edu/WangKH/insectary.html (update 2016)
- Type:
Websites
Status:
Published
Year Published:
2016
Citation:
http://www.ctahr.hawaii.edu/WangKH/sustainable-pest.html (updated 2016)
|
Progress 10/01/14 to 09/30/15
Outputs
Target Audience:In 2014, we established an outdoor training classroom at the Poamoho Experiment Station and facilitated organic farming outreach activities at the Waimanalo Experiment Station through an extramurally funded program, Center of Rural Agricultural Training and Entrepreneurship (CRATE). Since Oct 2014, we had conducted 14 field days/ workshops/displays promoting insectary planting, cover cropping and soil health management. This has reached out to local farmers, new farmers in training, NRCS agents, master gardeners, students, CTAHR extension agents throughout the state, administrators and other agriculture practitioners as shown in this website http://www.ctahr.hawaii.edu/WangKH/CRATE.html. Among the local farmers, we had reached out to 1) aquaponics and hydroponic farmers as well as wetland taro farmers (objective 1); 2) new farmers that are interested in the use of oil radish as trap crop for plant-parasitic nematodes (Objective 2); 3) green onion or onion growers challenged by thrips damage; 4) tomato producers interested in organic pest management approach, where we demonstrate the importance of insectary planting and potential of hot water spray against insect pests. Beside small-scale local farmers, we also drawn interest from larger corn seeds producer like Monsanto to conduct no-till cover cropping using roller-crimper, and estimate plant-available nitrogen made available from growing cover crops. Monsanto located at Kunia as well as Maui had approached us to borrow roller crimper to crimp down their sunn hemp cover crop, and had submitted soil samples for us to analyzed plant-available nitrogen subsequent to their cover crop. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided?This project provides training for 4 graduate students, Shelby Ching (MS), Shova Mishra (MS), Philip Waisen (Ph.D.) and Josiah Marquez (MS) in Tropical Plant Pathology Graduate program (in Sustainable Pest Management Laboratory). This project also provided training for two undergraduate students (Park and Leo) sign up for directed research (PEPS 499) with the PI as part of their research assignment. Multiple field trials conducted at Poamoho Outdoor Classroom provide training ground for GoFarm Hawaii beginning farmers as well as undergraduate students taking PEPS 310 (Environment and Agriculture) and PEPS 410 (Plant and Soil Health Management). A total of 91 students enrolled in GoFarm Hawaii New Farmers training program had received lectures related to cover cropping from the PI during this report period. Two junior researchers (Archana Pant and Marisol Quintanella) were hired to carry out different aspects of this project that lead to several publications. How have the results been disseminated to communities of interest?We disseminated our research outcome through: 2 peer-reviewed journal articles, 4 periodic newsletters through CTAHR SOAP HainaAi, 1 CTAHR Extension publication, 6 conference presentations, 7 extension lectures for GoFarm Hawaii new farmers training program, 14 field days/workshops/displays for local farmers and Agriculture professional (extension agents, NRCS agents), 1 TV host interview, and 1 YouTube video. We posted all publications and outreach materials through 4 websites (Insectary plants, Cover Crops, CRATE and Sustainable Pest Management) at http://www.ctahr.hawaii.edu/WangKH/index.html. We periodically published research outcomes from this project in an online newsletter (HainaAi) overseen by co-PIs, Sugano and Radovich. This newsletter is frequently read by master gardeners, local farmers, and other agriculture educators in Hawaii. What do you plan to do during the next reporting period to accomplish the goals?Continue field trials in Objective 2, 4 and 5, summarize and develop a cover crop calculator to provide farmers guidance on fertilizer reduction following cover cropping. Continue to maintain Poamoho Outdoor teaching classrooms with active research and extension activities and expand cover crop and insectary demonstration trials to the outdoor teaching classrooms located at Waimanalo Station.
Impacts
What was accomplished under these goals?
During this project period, we focus on addressing Objectives 1, 3 and 5. Objectives 1: During this project period, we completed a Western Region IPM Center funded project, where we explored several non-chemical based pest management strategies against insect pests. Three peer reviewed publications related to the use of insectary plants and wasps nesting blocks to attract beneficial arthropods were generated, one of them was still pending on review. Our demonstration to growers during a CRATE field day event was well received. Two graduate students integrate the use of cover crop with vermicompost tea drenching and spent oyster mushroom compost waste, respectively for their thesis projects. A video was generated on the benefits of vermicompost tea in you tube to summarize our findings (http://youtu.be/7pQBWyQYum0). Obj 3: A manuscript was submitted for peer review publication from two green onion trials comparing the use of sunn hemp cover crop in a no-till system (SH) followed by cowpea and buckwheat as insectary borders for thrips, weeds and soil health management. This is compared to using soil solarization (Sol), sunn hemp + solarization (SHSol) accompanied by insectary borders, and bareground (BG) followed by biweekly organic insecticides. While solarization was very effective in suppressing weeds, planting of insectary plants in no-till cover cropping system suppress thrips damage as effective as insecticide treatment control and increased abundance of beneficial insects. Thus, integration of solarization with cover cropping and insectary plant borders offered a versatile pest management system for onion growers. Obj 5: Through our collaboration with Oregon State University, 5 field trials were conducted to develop Cover Crop Plant Available Nitrogen at Poamoho and Kunia (Oahu), Mealani (Big Island), Kula (Maui) and Lihue (Kauai) during this period. We are also collaborating with a farmer from Northern Mariana Islands (Saipan). A power point presentation summarizing the results is posted at http://www.ctahr.hawaii.edu/WangKH/Downloads/2015_Covercrop_PAN_calculator.pdf, and had been presented to farmers across the states on Oahu, Big Island, Maui as well as Kauai. A total of 14 field days/workshops/displays had been presented by PI, co-PIs or collaborators. Two of these field days took place at the outdoor training class room established through our team in conjunction with our NIFA funded project, Center of Rural Agricultural Training and Entrepreneurship (CRATE). We collaborate closely with NRCS. Images on the activities during this CRATE field day with NRCS are available at: https://www.flickr.com/photos/ctahr/sets/72157648990908852/, and https://www.flickr.com/photos/128203574@N04/sets/72157648591453837/ Four websites were maintained to update new research outcome of this project at: http://www.ctahr.hawaii.edu/WangKH/CRATE.html http://www.ctahr.hawaii.edu/WangKH/cover-crop.html http://www.ctahr.hawaii.edu/WangKH/insectary.html http://www.ctahr.hawaii.edu/WangKH/sustainable-pest.html
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2015
Citation:
Hinds, J., Wang, K.-H., and Hooks, C.R.R. 2015. Growth and yield of zucchini squash (Cucurbita pepo L.) as influenced by a sunn hemp living mulch. Biological Agriculture & Horticulture.13 pp. DOI: 10.1080/01448765.2015.1017736
- Type:
Other
Status:
Published
Year Published:
2015
Citation:
Ching, S. and Wang, K.-H. 2015. Use of Oyster Mushroom Compost for Nematode Management. Hanai'Ai Newsletter, Vol 24, July 2015. http://www.ctahr.hawaii.edu/sustainag /news/articles/V24-InsectaryPoster.pdf
- Type:
Other
Status:
Other
Year Published:
2015
Citation:
Wang, K.-H., Park, A., Ching, S., Mishra, S., Sugano, J., Uyeda, J., Tavares, J., and Quintanilla-Tornel, M. 2015. Insectary Plants for Organic IPM. Hanai'Ai Newsletter, Vol 24, July 2015. http://www.ctahr.hawaii.edu/sustainag/news/articles/V24-InsectaryPoster.pdf
- Type:
Theses/Dissertations
Status:
Submitted
Year Published:
2015
Citation:
Ching, S. 2015. Evaluating the potential of oyster mushroom compost waste for nematode management. Master Thesis. University of Hawaii at Manoa, Honolulu, HI. 89 pp.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Wang, K.-H., Chen, G., Cheng, Z., Quintanilla-Tornel, M., and Hooks, C.R.R. 2015. Contribution of no-till cover cropping to greenhouse gas remediation: Can nematodes tell the tale? Society of Nematologists Conference, East Lancing, MI. July 19-22, 2015 (Symposium: Nematodes as indicators for Climate Change, Ecosystem Sustainability, and Food Security; Attendance: ~ 30).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Quintanilla-Tornel, M. and Wang, K.-H. 2015. Mulch-based sustainable pest management strategies for green onions. Entomological Society of America (ESA) Annual Meeting, Minneapolis, MN. Nov 15-18, 2015 (poster).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Ching, S. and Wang, K.-H. 2015. Effects of oyster mushroom compost waste on soil and plant health in plant-parasitic nematode infested soils. Society of Nematologists Annual Meeting, East Lansing, MI. July 19-23, 2015.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Mishra, S., Sipes, B.S., and Wang, K.-H. 2015. Effect of vermicompost tea on plant-parasitic and beneficial nematodes. Society of Nematologists Annual Meeting, East Lansing, MI. July 19-23, 2015.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Mishra, S. and Wang, K.-H. 2015. Examine the potential of vermicompost tea to induce host plant resistance against root-knot nematode infection. CTAHR Student Research Symposium, Honolulu, HI, April 2015 (Abstract #72).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2015
Citation:
Ching, S., Wang, K.-H., and Sipes, B.S. 2015. Effects of oyster mushroom compost waste on soil and plant health in plant-parasitic nematode infested soil. CTAHR Student Research Symposium, Honolulu, HI, April 2015 (Abstract #120).
- Type:
Journal Articles
Status:
Published
Year Published:
2015
Citation:
Tavares, J., Wang, K.-H., and Hooks, C.R.R. 2015. Effectiveness of insectary plants against insect pests in a Hawaii hydroponic cropping system. Biological Control 91: 1-9 (http://www.sciencedirect.com/science/article/pii/S1049964415300098).
- Type:
Websites
Status:
Published
Year Published:
2015
Citation:
1. http://www.ctahr.hawaii.edu/WangKH/CRATE.html
- Type:
Websites
Status:
Published
Year Published:
2015
Citation:
2. http://www.ctahr.hawaii.edu/WangKH/cover-crop.html
- Type:
Websites
Status:
Published
Year Published:
2015
Citation:
3. http://www.ctahr.hawaii.edu/WangKH/insectary.html
- Type:
Websites
Status:
Published
Year Published:
2015
Citation:
4. http://www.ctahr.hawaii.edu/WangKH/sustainable-pest.html
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Progress 10/01/13 to 09/30/14
Outputs
Target Audience: This project is to encourage conventional vegetable or fruit crop farmers, organic farmers, potential new farmers that sign up for GoFarm Hawaii training program, and local immigrant farmers in Hawaii to adopt cover cropping/insectary plants in their farming system. We had been working with a conventional eggplant grower that is challenged by thrips and mites infestation, an organic aquaponic farm that produces organic leafy greens (lettuce, pak choi, watercress, cilantro and green onion) challenged by aphids and caterpillar pests, an organic farm that produce steak tomatoes challenged by insect transmitted viruses, a conventional green onion farm challenged by thrips, aphids and leaf minor, a wetland taro farm challenged by mites, aphids and leaf hoppers, and a conventional leafy green farm challenged by fusarium wilt and tomato spotted wilt virus on Manoa lettuce, pak choi, and daikon. On farm field trials were conducted to demonstrate the use of cover crops or insectary plants in various cropping systems follow by insect and nematode pest monitoring. In addition, we also involved other extension agents, NRCS agents throughout Hawaii in our outreach events. Most recently, we worked with Hawaii 22nd District’s Senator Donovan Dela Cruz on his Whitmore Village Agriculture Development Project in attempt to moving Hawaii State towards food sustainability and creating jobs in the community. Our outdoor training facility at Poamoho Experiment Station provides one location for frequent farm tours organized by the senator’s office for school educators, state agencies and others to learn about alternative farming in Hawaii. During this fiscal year, 24 farm visits had been made to visit some of our field trials established for this hatch project. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? This project provides training for a graduate student, Tavares, in Entomology program at CTAHR where she was hired as an APT. This project also provided training for two undergraduate students (Park and Leo) sign up for directed research (PEPS 499) with the PI as part of their research assignment. Multiple field trials conducted at Poamoho Outdoor Classroom provide training ground for GoFarm Hawaii beginning farmers as well as undergraduate students taking PEPS 310 (Environment and Agriculture) and PEPS/TPSS 481 (Weed Science) courses. How have the results been disseminated to communities of interest? We disseminated our research outcome through: 1 peer-reviewed book chapter, 1 peer-reviewed journal article, 2 periodic newsletters through CTAHR SOAP HainaAi, 1 CTAHR Extension publication, 2 conference presentations, 7 extension lectures for GoFarm Hawaii new farmers training program, 2 field days for local farmers and Agriculture professional (extension agents, NRCS agents), 1 radio show, trained 2 undergraduate and 1 graduate student. We posted all publications and outreach materials through three websites (Insectary plants, Cover Crops, and Sustainable Pest Management) at http://www.ctahr.hawaii.edu/WangKH/index.html. The outdoor class rooms established through this funding at the University of Hawaii Poamoho Experiment Station allowed us to host bigger scale outreach activities. During this period, we had hosted two key field days and 24 field visits scheduled by Senator Dela Cruz and HDOA as part of the Whitmore Village Agriculture Development project. We also created 5 flckr pages to share our activities online with the public through co-PIs, Sugano and Radovich, Sustainable and Organic Agriculture Program (SOAP) online newsletter (HainaAi) that is frequently read by master gardeners, organic farmers, and other agriculture educators in Hawaii. What do you plan to do during the next reporting period to accomplish the goals? Continue field trials in Objective 3 and 5, summarize and conclude results for insectary trials, develop a cover crop calculator to provide farmers guidance on fertilizer reduction following cover cropping. Continue to maintain Poamoho Outdoor teaching classrooms with active research and extension activities and expand cover crop and insectary demonstration trials to the outdoor teaching classrooms located at Waimanalo Station.
Impacts
What was accomplished under these goals?
During this project period, we focus on addressing Objectives 3 and 5. Obj 3: We conducted a second green onion trial at Poamoho Station to demonstrate the use of sunn hemp no-till system (SH) followed by cowpea and buckwheat as insectary (I) borders for thrips management. This is compared to using soil solarization (Sol), sunn hemp + solarization (SHSol) accompanied by insectary borders, and bareground (BG) followed by biweekly organic insecticides. Slightly different results to Trial I conducted last year were observed (http://www.ctahr.hawaii.edu/WangKH/Downloads/Insectary_settings_%20Solarization.pdf). Main take home message from this trial was that thrips damage was lowest in no-till SH (<15% toward harvest), and resulted in significantly higher green onion yield than the other three treatments including the organic insecticide BG treatment. Although soil solarization alone provided significant weed suppression as compared to the control, planting of insectary borders in the SHSol further prevent the intrusion of wind-borne weed seeds. Significantly higher abundance of predators and parasitoids due to the planting of insectary borders in SH or SHSol suggested that insectary border enhanced natural enemies of insect pests. Significant higher yield in SH was most likely due to higher abundance of soil nutrient cycling organisms and the organic matter provided by SH. Future research should investigate no-till planting of non-leguminous cover crops so as to prolong the organic mulching effect for better weed management and enhancement of soil dwelling predators. Obj 5: Outreach program to educate farmers the versatile use of cover crops for above and below ground pest management as well as reducing fertilizer and pesticide inputs. A book chapter entitled "Plant Disease Prevention and Management in Sustainable Agricultural Systems" (Wang and Uchida, 2014) is published in part based on accumulated research outcome from this insectary and cover crop projects. The PI was invited for a symposium talk at the International Conference of Nematology at Cape Town, South Africa to present "Benefits of mix cover cropping on soil health." Co-PI Sugano and Wang were invited to present "Aquaponic Pest Management: Sustaining a Commercial Industry in Hawaii" at the annual Aquaponic Conference in Hawaii. Radio show host, Paul Massey, of Kaua`i Community Radio KKCR heard about our cover cropping approach for nematode management, interviewed us on "Organic approach for the management of plant-parasitic nematodes, particularly for ginger and turmeric production." On March 29, 2014, co-PI Uyeda hosted an open house event at Poamoho Experiment Station. Our team showed the participants (> 75 people) how to attract beneficial insects to otherwise low biodiversity farm operation where weed mat is used to control weed in hydroponic or aquaponic system. Farmers are very interested about planting insectary plants such as buckwheat on the grow beds, or planting sunn hemp as field border. They were also introduced to the use of wasps nesting block to bring in predatory insects (mud wasps, aphid collecting wasps) and alternative pollinators (leaf cutter bees). Pictures of the events can be found at https://www.flickr.com/photos/ctahr/sets/72157643219133655/. Following the event, key crop producers at Northern Oahu, Clyde Fukuyama and Mel Matsuda, expressed their concern about melon thrips outbreak on eggplant and lack of effective organic insecticides. Since then, we conducted two field trials to examine the potential of integrating insectary plant (marigold) with various organic pest management approaches in an eggplant field. In Trial I, we planted flowering stage marigold (Tagetes erecta) in raised pot system using hydroponic solution. Our hypothesis was to provide a flowering niche for minute pirate bugs which were then introduced through dispersal of male macaranga flowers. We captured this activities in our flickr to share with our clients (https://www.flickr.com/photos/125718267@N02/sets/72157649541905548/). Results from the first trial showed that planting of marigold did not suppress thrips population on eggplant leaves, but introduction of macaranga flowers did. None-the-less, the suppression of thrips population is still not satisfactory. We are conducting second trial to modify our insectary approach to integrate management of nymph stage of thrips on the ground with foliar treatment. On July 25, 2014, co-PI Radovich, Sugano and Uyeda organized an annual CTAHR Extension and Research Update Event at Waimanalo Research Station. The PI was invited to present research updates from this project. This event was well attended by > 100 participants from CTAHR administrators, extension agents throughout the state, organic farmers, students, agriculture industry, state senators, and the publics interested in local food crop production. Our presentation is made available online at http://www.ctahr.hawaii.edu/sustainag/workshop/WSARE-PDP-Jul2014.html. A series of posters promoting the concept of the use of insectary plants or cover crops for pest management are also posted at the PI's website at http://www.ctahr.hawaii.edu/WangKH/Downloads/PoamohoOutdoorClass_ALL.pdf. To address the goal on reducing fertilizer use through cover cropping, we established three demonstration trials: 1) winter cover crop at Laulamilo on Big Island, 2) summer cover crops comparing single cover crop to mix cover cropping, and 3) summer leguminous cover crops in tilled vs no-till systems at Poamoho Experiment Station. Plant Available Nitrogen (PAN) available from the cover crops and effects of winter cover cropping on soil health from Trial I are summarized and published in two extension articles by post doctorate researcher, Pant (2014) as shown in the publication list. The goal is to develop Cover Crop Calculator specifically applicable for farmers in Hawaii. The other two trials are in progress. Based on upon results from this project, all PIs from this Hatch project applied for a USDA NIFA grant under the National NRCS grant in May 2014, and received a $952,943 CIG grant in Oct 2014 (see product list). On Oct 25, 2014, we organized a field day focus on demonstrating cover crop calculator field trials at Poamoho along with the use of insectary borders for thrips and weed management on green onion. Images on the activities during this CRATE field day with NRCS are available at: https://www.flickr.com/photos/ctahr/sets/72157648990908852/, and https://www.flickr.com/photos/128203574@N04/sets/72157648591453837/
Publications
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Sugano, J., Wang, K.-H, Uyeda, J., Tavares, J., Fukuda, S., Tamaru, C., Fox, B., and Radovich, T. Aquaponic Pest Management: Sustaining a Commercial Industry in Hawaii. Annual Aquaponic Conference in Hawaii. May 9, 2014.
- Type:
Book Chapters
Status:
Published
Year Published:
2014
Citation:
Wang, K.-H. and Uchida, J. 2014. Plant Disease Prevention and Management in Sustainable Agricultural Systems. pp. 353-384 In: D. Nandwani (ed.) Sustainable Development and Biodiversity Volume 2: Sustainable Horticultural Systems. Springer International Publishing, Switzerland). 31 pp. DOI 10.1007/978-3-319-06904-3_16
- Type:
Journal Articles
Status:
Published
Year Published:
2014
Citation:
Wang, K.-H., Radovich, T., Pant, A., and Cheng, Z. 2014. Integration of cover crops and vermicompost tea for soil and plant health management in a short-term vegetable cropping system. Applied Soil Ecology 82: 26-37. (http://dx.doi.org/10.1016/j.apsoil. 2014.05.003)
- Type:
Journal Articles
Status:
Published
Year Published:
2013
Citation:
Hinds, J., Wang, K.-H., Marahatta, S.P., Meyer, S.L.F., and Hooks, C.R.R. 2013. Investigating the influence of sunn hemp cover cropping and organic fertilizer on the nematode community in a zucchini cropping system. Journal of Nematology 45:265-271.
- Type:
Websites
Status:
Published
Year Published:
2014
Citation:
1. http://www.ctahr.hawaii.edu/WangKH/cover-crop.html
2. http://www.ctahr.hawaii.edu/WangKH/insectary.html
3. http://www.ctahr.hawaii.edu/WangKH/sustainable-pest.html
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2014
Citation:
Wang, K.-H and Hooks, C.R.R. Benefits of mix cover cropping on soil health. International Conference of Nematology, Cape Town, South Africa. May, 2014 (Symposium talk, Attendance: ~75).
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Progress 10/01/12 to 09/30/13
Outputs
Target Audience: This project is to encourage conventional vegetable or fruit crop farmers, organic farmers, potential new farmers that sign up for GoFarm Hawaii training program, and local immigrant farmers in Hawaii to adopt cover cropping/insectary plants in their farming system. We had been working with an organic aquaponic farm that produces organic leafy greens (lettuce, pak choi, watercress, cilantro and green onion) challenged by aphids and caterpillar pests, an organic farm that produce steak tomatoes challenged by insect transmitted viruses, a conventional green onion farm challenged by thrips, aphids and leaf minor, a wetland taro farm challenged by mites, aphids and leaf hoppers, and a conventional leafy green farm challenged by fusarium wilt and tomato spotted wilt virus on Manoa lettuce, pak choi, and daikon. On farm field trials were conducted to demonstrate the use of cover crops or insectary plants in their cropping systems follow by insect pest monitoring. In addition, we also involve other extension agents, NRCS agents throughout Hawaii during our outreach events. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? This project provided training for a graduate student in Entomology program where she is hired as an APT. This project also provided training for an undergraduate student who signed up for directed research with a PI as part of her honor program research assignment. She presented a poster on evaluating insectary plants for sustainable crop production, and won first place in Natural Sciences Poster at 2013 UH Manoa Fall Forum of Undergraduate Research and Creative Work. Poamoho Outdoor Classroom provides training ground for GoFarm Hawaii begining farmers as well as undergraduate students taking PEPS 310 and 481 classes. How have the results been disseminated to communities of interest? We disseminated our research outcome through: 1 peer-reviewed journal article, 3 periodic newsletters, 6 conference presentations and extension talks for local farmers and Agriculture professional (extension agents, NRCS agents), trained 1 undergraduate student and 1 graduate student. We posted all publications and outreach materials through three websites (Insectary plants, Cover Crops, and Sustainable Pest Management) at http://www.ctahr.hawaii.edu/WangKH/index.html. Currently, PI Wang is collaborating with colleague Dr. Radovich at the Department of Tropical Plant and Soil Science (TPSS) and Steven Chiang at AIP program to develop training program for beginning farmers. The outdoor class rooms established through this funding at the University of Hawaii Poamoho Experiment Station allowed us to host bigger scale outreach activities. During this project period, we had hosted three key field days: Wang, K-H. and J.A. Tavares. 2013. The potential of cover crop, mulching and soil solarization for suppressing above and below ground pests: insects, nematodes and weeds. Sustainable and Organic Agriculture Program’s Extension and Research Update. Poamoho Research Station. September 26, 2013. Wang, K.-H., J.A. Tavares, Sugano, J., S. Fukuda, J. Uyeda, T. Radovich, M. Kawate, R. Shimabuku, C. Tamaru, A. Hara, and B. Fox.2013. Integrated pest management for soil and soilless systems (poster series). Poamoho Open House Event, Poamoho, Oahu. Aug 30, 2013. http://www.ctahr.hawaii.edu/WangKH/Downloads/PoamohoOutdoorClass_ALL.pdf. Wang, K.-H., T. Radovich. 2012. Cover Crop/ Roller Crimper in Organic Plots. Waimanalo Field Day, Waimanalo Experiment Station, HI, November 17, 2012 (Attendance: 20). What do you plan to do during the next reporting period to accomplish the goals? Repeat experimental trials listed in Objectives 2- 4 by addressing the challenges faced in our first year. Continue to maintain Poamoho Outdoor teaching classrooms with active research and extension activities.
Impacts
What was accomplished under these goals?
Obj 1: Four demonstration trials were conducted (3 at Poamoho Station, 1 at Hale Tuahini teaching facility) to demonstrate the in integration of buckwheat and sunn hemp as insectary plants into hydroponic (at Poamoho) and aquaponic (at Hale Tuahini) production systems. Aphids and caterpillar pests were reduced by insectary settings (insectary plants and wasp nesting block) if transplant of cash crop seedlings and flowering of insectary plants were synchronized, whereas thrips and whiteflies were repelled by metalic folating raft. All results were summarized and posted in poster format and accessible at http://www.ctahr.hawaii.edu/WangKH/Downloads/PoamohoOutdoorClass_p9.pdf. Obj 2: Rapeseeds were recommended as a cover crop followed by soil solarization to produce a biofumigation effect against fusarium wilt on Manoa lettuce at a commercial field in Waianae. While the biofumigation effect of rapeseed suppressed fusarium wilt, attracted imported cabbage worm butterflies, a problem for lettuce and pak choi production. Further research will look into integrating sunn hemp as insectary border, and rotating kale as soil biofumigant crop to suppress Fusarium. Obj 3: Two demonstration trials (one at commercial green onion farm at Waianae, one at Poamoho Station) were conducted to demonstrate the potential of sunn hemp no-till system (SH) followed by cowpea and buckwheat at insectary (Ins) borders for thrips management. This is compared to using soil solarization (Sol) and biweekly organic insecticides to control thrips. All results are summarized in a power point presentation accessible at http://www.ctahr.hawaii.edu/WangKH/Downloads/Insectary_settings_%20Solarization.pdf. Main take hope message was that thrips damage was lowest in SH+Ins, and resulted in significant higher yield than organic insecticide treated plots. Solarization provided significant suppression of weeds. Future research should look into integrating insectary border with SH+Sol plot for thrips and weed control. Obj 4: A tomato field trial was conducted at an organic farm in Poamoho Station where sunn hemp was interplanted between tomato rows to serve as traps crop for whiteflies and thrips, while attracting Trichogramma wasps. No significant benefits were observed in this system as sunn hemp overgrew tomato seedlings. Better timing of sunn hemp planting should be examined in the future. Obj 5: Extensive outreach activities are outlined in next section of this report.
Publications
- Type:
Journal Articles
Status:
Accepted
Year Published:
2013
Citation:
Hinds, J., Wang, K.-H., Marahatta, S.P., Meyer, S.L.F., and Hooks, C.R.R. 2013. Investigating the influence of sunn hemp cover cropping and organic fertilizer on the nematode community in a zucchini cropping system. J. Nematol. 45: 265-271.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Ng, A.C.-Y., Tavares, J., and Wang, K-H. 2013. Evaluate the benefits of insectary plants for sustainable crop production in Hawaii. Natural Sciences Poster Competition at the 2013 UH Manoa Fall Forum of Undergraduate Research and Creative Work (1st place honor for poster presentation).
- Type:
Websites
Status:
Submitted
Year Published:
2013
Citation:
http://www.ctahr.hawaii.edu/WangKH/cover-crop.html
- Type:
Websites
Status:
Published
Year Published:
2013
Citation:
http://www.ctahr.hawaii.edu/WangKH/insectary.html
- Type:
Websites
Status:
Published
Year Published:
2013
Citation:
http://www.ctahr.hawaii.edu/WangKH/sustainable-pest.html
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Wang, K.-H, Hooks, C.R.R. 2013. Effects of surface mulch on soil health conditions in conservation-tillage systems. Society of Nematologists Conference, Knoxville, TN
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Hooks, C.R.R., Haines, J.1, and Wang, K.-H. 2013. Influence of sunn hemp and organic fertilizer on the arthropod and nematode community in no-till zucchini plantings. Society of Nematologists Conference, Knoxville, TN.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Ching, S., Loffredo, A., and Wang, K-H. 2013. Enhancing nematode-trapping fungi in the soil using a no-till mix cover cropping system. CTAHR Student Research Symposium, (Abstract #9).
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Wang, K-H., Tavares, J., Uyeda, J., and Sugano, J. Are we ready for insecticide-free aquaponic? Aquaponics in Hawaii Conference. Windward Community College, May 25, 2013.
- Type:
Conference Papers and Presentations
Status:
Published
Year Published:
2013
Citation:
Sugano, J., Fukuda, S., Uyeda, J., Wang, K-H., Tavares, J., Radovich, T., Kawate, M., Shimabuku, R., Tamaru, C., Hara, A., and Fox, B. Integrated Pest Management for Soil and Soil-less Systems. Aquaponics in Hawaii Conference, Windward Community College, May 25, 2013
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