Source: OHIO STATE UNIVERSITY submitted to
ECOLOGY AND MANAGEMENT OF EUROPEAN CORN BORER AND OTHER LEPIDOPTERAN PESTS OF CORN
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
TERMINATED
Funding Source
Reporting Frequency
Annual
Accession No.
0217278
Grant No.
(N/A)
Project No.
OHO01211-MRF
Proposal No.
(N/A)
Multistate No.
NC-205
Program Code
(N/A)
Project Start Date
Oct 1, 2010
Project End Date
Sep 30, 2015
Grant Year
(N/A)
Project Director
Michel, AN, P.
Recipient Organization
OHIO STATE UNIVERSITY
1680 MADISON AVENUE
WOOSTER,OH 44691
Performing Department
Entomology
Non Technical Summary
Over 80 million acres of field corn (Zea mays) and 600,000 acres of sweet corn, worth about $40 billion and $1 billion respectively, are grown in the U.S. each year. The European corn borer (ECB), Ostrinia nubilalis, accounts for over $1.85 billion in control costs and grain losses annually. In 2006, 88% of the fresh market sweet corn acreage was treated with one or more insecticide applications for a total of 605,000 lbs of insecticides applied. ECB also attacks many other crops, such as sorghum, small grains, potatoes, beans, tomatoes, and peppers. The southwestern corn borer, Diatraea grandiosella, causes about $1 million in damage in the Western High Plains (Morrison et al. 1977). Recently, the sugarcane borer, Diatraea saccharalis, has emerged as an important corn pest in the southern U.S. Other significant stalk-boring pests include the common stalk borer, Papaipema nebris, hop vine borer, Hydraecia immanis, and potato stem borer, Hydraecia micacea. Since 1950, previous committees have focused on ECB and other stalk-boring lepidopteran corn pests. In addition to stalk borers, we propose to address the other lepidopteran corn pests, which include those that feed on corn leaves and ears. This is a natural progression for the committee, as these pests are increasing in economic importance. Corn earworm, Helicoverpa zea, and fall armyworm, Spodoptera frugiperda, consume corn leaves, tassels, silk and kernels. In the southeastern U.S., losses attributed to corn earworm in field corn range from 1.5-16.7%, and sweet corn losses can be as high as 50% (Wiseman 1999). Black cutworm, Agrotis ipsilon, is the most damaging of the cutworm complex in the Corn Belt. Stand loss over 25% and yield losses of about 2,900 kg/ha are not unusual (Showers et al. 1983, Showers 1999). Western bean cutworm, Striacosta albicosta, increasingly is a pest of corn ears across the north central region. Outcomes or projected Impacts: -Cumulative benefits to Bt and non-Bt maize due to a suppressed European corn borer population during 13 growing seasons are conservatively estimated at more than $6.1 billion for a 5-state region, with cumulative benefits to non-Bt maize accounting for almost $3.9 billion of this total. -An improved program for monitoring for European corn borer resistance to Bt corn would help safeguard Bt technology for growers. -Blended seed refuge would increase grower productivity across the Corn Belt and reduce the likelihood that European corn borer would develop resistance to Bt corn. -Growers and consultants will have practical methods to monitor for western bean cutworm adults so they can initiate field scouting and avoid undue economic loss to either the pest itself or the increased mycotoxin contamination it might cause. -Online publication of outputs will expand clientele access to corn insect IPM decision support tools and increase implementation of IPM for corn lepidopteran pests.
Animal Health Component
0%
Research Effort Categories
Basic
70%
Applied
30%
Developmental
(N/A)
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2113110108050%
2113110113050%
Goals / Objectives
Adapt IPM systems for the changing pest complexes in maize. Investigate ecology, evolution, genetics, and behavior of pest Lepidoptera. Employ electronic delivery methods to disseminate information related to sustainable management of Lepidopteran pests.
Project Methods
Objective 1. Investigate the relationship between transgenic maize and the agricultural environment Current and new products will continue to be tested for efficacy in Ohio. Objective 2. Adapt IPM systems for the changing pest complexes in maize. OH will lead an effort mapping the distribution of overwintering WBC. High infestations will be overlaid on soil type distribution maps to determine if sandier soils are more likely to support overwintering. Life history characteristics will be determined and compared to characteristics in western states. MI and ONT will cooperate to characterize WBC in the Great Lakes region. The influence of growing degree days on WBC life stage development will be evaluated to improve management strategies and timings. Preliminary work in MI suggests WBC survives better shortly after egg hatch than in its original range in the Great Plains. The impacts of environmental conditions on egg and larval survival in the Great Lakes Region will be examined. Objective 4. Employ electronic delivery methods to disseminate information related to sustainable management of Lepidopteran pests Individual state and province field crop extension entomology programs are increasingly offering distance education workshops to clientele. The National Corn Growers Assn. has collaborated with NC-205 extension entomologists to deliver Bt corn IRM distance education workshops to growers and consultants. NC-205 will continue to deliver live distance education programs to clientele utilizing electronic meeting software to present real time workshops state, region and province-wide. Programs will be archived for on-demand online access. States and provinces may allow us to bundle videos and the distance education workshops mentioned above for CEU credit. This would enable NC-205 to offer high quality versions on DVD and send them to county agents or other instructors and IPM field scout training programs nationally and internationally. This digital media could be played at extension meetings and agronomist, agribusiness training sessions and CEU credit could be given with prior approval through appropriate state or province-based certifying agencies.

Progress 10/01/10 to 09/30/15

Outputs
Target Audience:We catered to a wide variety of target audiences for this project. Our main target audience was corn producers in Ohio and the US. Secondary target audiences included Ohio State University Extension Educators, crop consultants, agribusiness industry personnel, commodity boards, corn entomology scientists, government organizations (EPA and USDA), as well as international researchers and scientists in South America. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?-With faculty in other OSU departments, we developed the Agronomic Crops Research Experience program (ACRE). This program trained 8 undergraduate students in all facets of agronomic crop, including scouting and management for European corn borer and other lepidopteran pests. We worked closely with OSU Extension Educators and ACRE interns in placing the pheromone traps, generating and recording the data for WBC surveillance. We also worked on proper identification and scouting techniques. In heavily infested fields, we trained scouts and farmers on proper identification of WBC damage and Bt strip testing. Dr. Michel has hosted 3 graduate (PhD) students from ESALQ-USP in Piricicaba, Brazil since 2012: Dr. Vitor AC Pavinato, Julio Fatoretto and Natalia Leite. How have the results been disseminated to communities of interest?All data have been reported on the Agronomic Crops insect webpage. Timely updates during the season were provided in the OSU extension's agronomic crop newsletter (weekly and bi-weekly), and at the Ohio Pesticide Applicator Training Proceedings. -Dr. Michel provided 14 extension presentations focused, in part, on Lepidopteran corn pests in 2015, and over 100 during the course of the project. What do you plan to do during the next reporting period to accomplish the goals? Nothing Reported

Impacts
What was accomplished under these goals? 1) Western bean cutworm (WBC) surveillance: Since 2006, we have been monitoring the expansion of Sriacosta albicosta, a new pest of corn in the eastern corn belt. We placed pheromone traps throughout Ohio, but concentrated on northern areas of the state as previous research suggested the highest risk associated with infestation. Traps were monitored weekly from June 1 until Sept 1 and reported in OSU's Agronomic Crop Team's weekly newsletter. Distribution maps are databased at our Agronomic Crops Insect webpage (http://www.oardc.ohio-state.edu/ag/). We also observed moderate to heavy feeding of WBC larvae in Northwest Ohio for the second consecutive year in 2015. Furthermore, we found larvae in Geauga county for the first time. Economic thresholds may have been reached at a few sites. This would be the first time economic damage had been observed in Ohio. There is also concern that transgenic corn expressing the Bt protein Cry1F is not providing adequate control--several ears that had feeding from WBC larvae tested positive for the Cry1F trait. Since this is 1 of the 2 genes that are provide some control of WBC, careful monitoring of the efficacy of this trait will be needed. Throughout the duration of the project, we have seen moth counts increase every year, with noticeable damage in 2014 and 2015. WBC in OH is a growing problem that will be the focus of future monitoring objectives. 3) Re-emergence of European corn borer (ECB)?: Upon scouting for western bean cutworm in 2015, we also observed a moderate number of European corn borer infesting corn. ECB was very difficult to find in previous surveys (2011-2014)--even in nontransgenic controls. This the first time in several years that ECB larvae were found in corn ears. It is unknown if this is a growing trend or an outlier because of environmental conditions. 4) International Research on Lepidopteran Corn Pests: As part of 2 visits to ESALQ-University of Sao Paulo, Brazil, Dr. Michel interacted and collaborated with Lepidopteran corn pest management of international significance. Dr. Michel worked with Dr. Celso Omoto on Bt resistance in fall armyworm, Dr. Alberto Correas on molecular ecology of Helicoverpa armigera and H. zea, and Dr. Maria Zucchi on sugarcane borer.

Publications

  • Type: Conference Papers and Presentations Status: Published Year Published: 2014 Citation: A. Michel. 2014. 2014 Update on Field Crop Insect Activity. Ohio Pesticide Commercial Applicator 2014 Recertification Conference. OSUE
  • Type: Conference Papers and Presentations Status: Published Year Published: 2014 Citation: A. Michel. 2014. 2014 Update on Field Crop Insect Activity. 2014 Ohio Pesticide Private Applicator Recertification Proceedings. OSUE


Progress 10/01/13 to 09/30/14

Outputs
Target Audience: We catered to a wide variety of target audiences for this project. Our main target audience was corn producers in Ohio and the US. Secondary target audiencess included Ohio StateUniversity Extension Educators,crop consultants, agribusiness industry personnel, commodity boards,corn entomology scientists, government organizations (EPA and USDA), as well as international contacts. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? We worked closely with OSU Extension Educators in placing the pheromone traps, generating and recording the data. We also worked on proper identification and scouting techniques. In areas of heavy damage, we worked with the Fulton County Extension Educator on proper insepection, collection and Bt-strip testing of corn ears. How have the results been disseminated to communities of interest? Our western bean cutworm data was repeatedly published online at our Agronomic Crops Insects webpage. Weekly updates were inluded in the OSU-Extension Agronomic Crops Team newsletter. We have included this data on field crop insect activity summaries provided to pesticide recertification as well as Extension Educators. The webcast "Cutworms in Corn" was published on the Plant Management Network's website. What do you plan to do during the next reporting period to accomplish the goals? We will plan on monitoring for the presence of western bean cutworm in 2015. In those northern areas where damage was observed, we will intensify trapping efforts. Additionally, we will provide identifiction and management tools for producers in these affected areas. A field day will be planned during the summer of 2015 to help train producers on proper scouting techniques. We will summarize data from 2014, and publish reports in early 2015.

Impacts
What was accomplished under these goals? 1) Western bean cutworm (WBC)surveillance: Since 2006, we have been monitoring the expansion of Sriacosta albicosta, a new pest of corn in the eastern corn belt. We placed pheromone traps throughout Ohio, but concentrated on northern areas of the state as previous research suggested the highest risk associated with infestation. Despite a decrease in adult moths caught, and the extremely cold winter, we saw an increase in adults caught in our trapping network. Additionally, we also observed moderate to heavy feeding of WBC larvae in Northwest Ohio--some of this damage may have reached economic threshold. This would be the first time economic damage had been observed in Ohio. There is also concern that transgenic corn expressing the Bt protein Cry1F is not providing adequate control--several ears that had feeding from WBC larvare tested positive for theCry1F trait. We providedweekly updatesonWBC distribution through the OSU-AgronoimcCrops Team's website and weekly newsletter. 2) Webcast onCutworms in Corn: In August of 2014, Dr. Michel was invited to provide a guest seminar for the Plant Management Network (PMN), focused on the biology and management of various cutworm species in corn. The seminar was recorded and provided online through the PMN's website.

Publications

  • Type: Conference Papers and Presentations Status: Published Year Published: 2013 Citation: 1. Hammond, R., and A. Michel. 2013. 2013 Update on Insect Management Tactics. Ohio Pesticide Commercial Applicator 2013 Recertification Conference. OSUE 2. Hammond, R., and A. Michel. 2013. 2013 Update on Field Crop Insect Activity. Ohio Pesticide Commercial Applicator 2013 Recertification Conference. OSUE 3. Hammond, R., and A. Michel. 2013. 2013 Update on Insect Management Tactics. 2013 Ohio Pesticide Private Applicator Recertification Proceedings. OSUE 4. Hammond, R., and A. Michel. 2013. 2013 Update on Field Crop Insect Activity. 2013 Ohio Pesticide Private Applicator Recertification Proceedings. OSUE


Progress 01/01/13 to 09/30/13

Outputs
Target Audience: The audience reached included corn producers, crop consultants and scouts, extension educators and agribusiness industry. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided? Educational modules were created that focused on the biology and management of corn pest lepidoptera. These modules were provided to OSU extension educators. How have the results been disseminated to communities of interest? Results from this project were presented at several agronomy field days and workshops. We focused on the distribution of western bean cutworm, as well as methods and suggestions for accurate and timely egg scouting. Additionally, we discussed newer transgenic management options for lepidoteran pest control. What do you plan to do during the next reporting period to accomplish the goals? A summary of the activity and management of Lepidopteran ear pests will be published the the OSU Extension Pesticide Recertification proceedings. We hope to participate in field trials of newer methods of transgenic corn pest control. We will poll OSU Extension Educators on their opinions on the use of thebugspot.org for insect pest monitoring to improve this new, electronic and smartphone enabled trapping system.

Impacts
What was accomplished under these goals? For the 7th straight year, we trapped for the distribution of the emerging pest western bean cutworm with assistance from OSU educators. Weekly updates were delivered electronically through the OSU Extension Agronomic Crops Team's newsletter and OSU Field Crop Entomology Website. A total of 1,486 adult moths were captured. Several fields were scouted for the presence of egg masses, and none were found. While numbers remained high in the Northwest and Northeast parts of the state, overall numbers decreased from previous years. The decrease may indicate that pressure from western bean cutworm may be limited in Ohio, and that risk of economic damage would may be subsiding. Our observations are also consistent with data from surrounding states. However, the past few years had environmental conditions not favorable to western bean cutworm survival, which may have played a role in the lack of trap catches. This data was used to make IPM decisions on scouting for western bean cutworm--we recommended egg scouting in areas of high trap catches, while in other areas scouting and management was not recommended. For western bean cutworm trapping, we participated in a beta test of the new trapping and monitoring website thebugspot.org, a program developed by Dr. Brian McCornack at Kansas St. University. This allowed users to upload trap catches in real time using mobile devices and QR codes on the traps themselves. Cooperatores responding well to the new technology and also allowed a more streamlined information delivery platform.

Publications


    Progress 01/01/12 to 12/31/12

    Outputs
    OUTPUTS: For the 6th straight year, a western bean cutworm trapping network was implemented across Ohio counties during the 2012 growing season. Our trapping network involved OSU-Extension Educators, who interacted with individuals producers and industry personnel. Weekly maps of OH were created and uploaded to the OSU Agronomic Crops Insects Webpage (http://entomology.osu.edu/ag/), with updates provided in the Crop Observation and Recommendation Network (CORN) newsletter (this newsletter is distributed to Ohio agronomic crop producers). Detailed updates on the distribution of Western Bean Cutworm were provided at several field days and extension events. For these field days, WBC quick guides were developed for which included tips on identification and management recommendations. PARTICIPANTS: Individuals: 1) A. P. Michel: Assistant Professor, Field Crop Insect Extension Specialist 2) R. B. Hammond: Professor, Field Crop Insect Extension Specialist Partner Organizations: Pioneer Corporation Collaborators and Contacts: Alan Sundermeier, OSU Extension Educator Harold Watters, OSU Extension Field Specialist Clif Little, OSU Extension Educator Florian Chirra, OSU Extension Educator Tammi Rogers, OSU Extension Educator David L. Marrison, OSU Extension Educator Chris Bruynis, OSU Extension Educator David Dugan, OSU Extension Educator Gene McCluer, OSU Extension Educator Ted Wiseman, OSU Extension Educator Steve Prochaska, OSU Extension Field Specialist John Smith, OSU Extension Educator Mike Hogan, OSU Extension Educator Mark Landefeld, OSU Extension Educator Suzanne Mills-Wasniak, OSU Extension Educator Mike Gastier, OSU Extension Educator Tony Nye, OSU Extension Educator Rory Lewandowski, OSU Extension Educator Mark Koenig, OSU Extension Educator Greg LaBarge, OSU Extension Field Specialist Bruce Clevenger, OSU Extension Educator Glen Arnold, OSU Extension Educator Ed Lentz, OSU Extension Educator Debbie Brown, OSU Extension Educator Curtis Young, OSU Extension Educator Les Ober, OSU Extension Educator Mike Estadt, OSU Extension Educator Jim Lopshire, OSU Extension Educator Chris Zoller, OSU Extension Educator Mark Mechling, OSU Extension Educator Gary Graham, OSU Extension Educator Eric Barrett, OSU Extension Educator Rob Leeds, OSU Extension Educator TARGET AUDIENCES: Efforts to present data and provide recommendations included worksheets, identification guides, field day demonstrations, and developing electronic survey maps. Data and results were presented to various target audiences including: Ohio corn growers, Certified crop advisers, Agribusiness agronomists PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

    Impacts
    Summary: Pro-active monitoring and surveys indicate the threat of a new corn ear-feeding pest remains low in Ohio. Situation: Western bean cutworm is a new corn pest in Ohio, which has expanded across the state since 2006. As a serious ear-feeder that has caused economic losses in IN and MI, the WBC threatens over 3.9 million acres of corn, responsible for $3 billion in production. Response: Coordinating with OSU-Extension Educators, OARDC researchers maintained a state-wide WBC adult trapping network throughout the state to detect its presence and provided recommendations when trap counts reached high levels. Impact: Despite high trap counts, we documented a stabilization of WBC trap captures of when compared to previous years. Based on our geographical sampling, we determined only a few high-risk areas where targeted scouting was necessary; further, on-farm inspection revealed a lack of WBC pressure. Through our recommendations, we limited unnecessary insecticide applications, saved producers extra input costs and retained profitability.

    Publications

    • R. B. Hammond and A. P. Michel. 2012. "2011 Update on Field Crop Insect Activity" In: Ohio Pesticide Commercial Applicator 2012 Recertification Conference. Columbus, OH, OSU Extension. ( 2012 ): 226-229.
    • R. B. Hammond and A. P. Michel. 2012. "2011 Update on Field Crop Insect Activity" In: Ohio Pesticide Private Applicator 2012 Recertification Conference. Columbus, Oh, OSU Extension. ( 2012 ): 39-42.
    • R. B. Hammond and A. P. Michel. 2012. "2011 Update on Insect Management Tactics" In: Ohio Pesticide Commercial Applicator 2012 Recertification Conference. Columbus, OH, OSU Extension. ( 2012 ): 221-225.
    • R. B. Hammond and A. P. Michel. 2012. "2011 Update on Insect Management Tactics" In: Ohio Pesticide Private Applicator 2012 Recertification Conference. Columbus, OH, OSU Extension. ( 2012 ): 34-38.
    • A. P. Michel and R. B. Hammond. 2012. "Western Bean Cutworm Counts on the Rise" Agronomic Crops Team Newsletter. (Crop Observation and Recommendation Network-CORN).
    • A. P. Michel and R. B. Hammond. 2012. "Western Bean Cutworm Flight Begins in Ohio" Agronomic Crops Team Newsletter (Crop Observation and Recommendation Network-CORN).


    Progress 01/01/11 to 12/31/11

    Outputs
    OUTPUTS: 1.) A western bean cutworm trapping network was implemented across Ohio counties during the 2011 growing season. Weekly maps of OH were created and uploaded to the OSU Agronomic Crops Insects Webpage (http://entomology.osu.edu/ag/). 2) For the second straight year, a Western Bean Cutworm Summit was held in Guelph, Ontario in March 2011 that brought together researchers, extension and industry personnel. 3) Current updates on the distribution of Western Bean Cutworm were provided at 9 field days and extension events. 4) A field trial for Optimum Acre Max 1 control of European Corn Borer was performed at OARDC. PARTICIPANTS: Dr. Andy Michel and Dr. Ron Hammond are OSU-Extensions Field Crop Entomology specialists who analyzed data and coordinated western bean cutworm trapping network. Various OSUE-County Educators assisted in trap maintenance across Ohio. TARGET AUDIENCES: Data regarding this project was presented to growers, certified crop advisers, crop consultants and industry personnel at various field days and extension events. PROJECT MODIFICATIONS: Not relevant to this project.

    Impacts
    1) Western bean cutworm is a new pest in Ohio, having first arrived in 2006. To monitor its expanding distribution and threat to corn production, we established trapping networks in 2011, the 5th straight year. Although overall trap numbers increased from 2010, field inspections revealed little to no egg deposition and a very low infestation. Recommendations were provided to growers to scout first before making chemical applications to avoid unnecessary treatments and input costs. 2) Field evaluations of Optimum Acre Max 1 at various refuge (non-Bt) blends revealed good control against European Corn Borer (ECB). However, data indicated that higher damage was present at lower refuge percentages, suggesting ECB larvae may move and concentrate feeding on refuge ears. Data will be used to improve blended refuge expectations and predictions.

    Publications

    • R. Hammond, B. Eisley, and A. Michel. 2011. Control of Insect Pests of Field Crops. Columbus, OH: Ohio State University Extension. (Report No. Bulletin 545)
    • A. P. Michel and R. Hammond. Western Bean Cutworm Myth #1: We know the reason why Western Bean Cutworm has expanded across the Eastern Great Lakes. Crop Observation and Recommendation Network (C.O.R.N.). 2011-6. March 21 - April 1.
    • A. P. Michel and R. Hammond. Western Bean Cutworm Myth #2 - Since the name is western bean cutworm, soybeans will be infected. Crop Observation and Recommendation Network (C.O.R.N.). 2011-4. February 24. - March 4.
    • A. P. Michel and R. Hammond. Western Bean Cutworm Myth #3: All growth stages of corn are at risk for oviposition. Crop Observation and Recommendation Network (C.O.R.N.). 2011-3. February 9 - February 23.
    • A. P. Michel and R. Hammond. Western Bean Cutworm Myth #4: All transgenic corn varieties are effective against western bean cutworm. Crop Observation and Recommendation Network (C.O.R.N.). 2011-2. January 25 - February 9.
    • A. P. Michel and R. Hammond. Top 5 myths of Western Bean Cutworm. Crop Observation and Recommendation Network (C.O.R.N.). 2011-1. January 1-January 25.
    • A. P. Michel. Western Bean Cutworm Flight Begins. Agronomic Crops Team Newsletter. Crop Observation and Recommendation Network (C.O.R.N.). 2011.
    • A. P. Michel and R. B. Hammond. Remain vigilant for western bean cutworm. Agronomic Crops Team Newsletter. Crop Observation and Recommendation Network (C.O.R.N.). 2011.
    • A. P. Michel and R. B. Hammond. Status of Western Bean Cutworm in Ohio: Scout for Egg Masses. Agronomic Crops Team Newsletter. Crop Observation and Recommendation Network (C.O.R.N.). 2011.
    • A. P. Michel and R. B. Hammond. Update on Western Bean Cutworm Flight. Agronomic Crops Team Newsletter. Crop Observation and Recommendation Network (C.O.R.N.). 2011.


    Progress 01/01/10 to 12/31/10

    Outputs
    OUTPUTS: A western bean cutworm (WBC) working group was formed within NC205, consisting of researchers focused on research and extension of this pest, specifically in the Eastern Great Lakes region. This working group held a conference in March, 2010 in Guelph, Ontario with the support from the NC-IPM minigrants program. We participated in an adult trapping network during the summer of 2010. We also performed in-field scouting where our trap numbers indicated a high potential for damage. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Target audiences include other researchers, corn producers, crop consultants and agribusiness industries. Towards this end, we updated our agronomic crop pest webpage for information pertaining to pests included in this project. Information pertaining to this project was discussed at various agronomic field days and extension events throughout the year. Additionally, scouting videos were made and uploaded to the website. Because western bean cutworm is a relatively new pest to the eastern great lakes, we published an article focused on the biology of this pest in the Journal of IPM. This is an open access journal and freely available to the general public. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.

    Impacts
    At the WBC conference, we discussed future and current situations and research. The formation of the working group will allow improved collaboration and information sharing. Similar to the last 4 years, western bean cutworm increased its presence in Ohio this past growing season. Compared to 566 moths caught in 2009, our final total of adult moths caught was 2,695. Most of the moths were caught in northwest Ohio, with more than 400 moths collected in both Defiance and Fulton counties alone. Additionally, we found western bean cutworm egg masses and larvae in field corn. Fortunately, we never found a field with economic damage. The results of this adult trapping and scouting provided information to growers that, although damage was being seen, it was not severe enough to cause economic losses to yield and thus control measures were not necessary.

    Publications

    • Michel, A.P., R. Hammond, and B. Eisley. Western Bean Cutworm Flight Has Begun. Crop Observation and Recommendation Network (C.O.R.N.). 2010-18. June 21, 2010 - June 29, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Planning for Western Bean Cutworm for 2010. Crop Observation and Recommendation Network (C.O.R.N.). 2010-16. June 08, 2010 - June 15, 2010.
    • Michel, A. P., C. Krupke, C. DiFonzo and T. Baute. 2010. Ecology and management of the western bean cutworm, Striacosta albicosta (Smith), in corn and dry beans. Journal of Integrated Pest Management. 1:1-10.
    • Hammond, R., A. P. Michel, and B. Eisley. New Transgenic Corn Product, Optimum Intrasect. Crop Observation and Recommendation Network (C.O.R.N.). 2010-38. November 9, 2010- November 23, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Summary and Status of Western Bean Cutworm in Ohio. Crop Observation and Recommendation Network (C.O.R.N.). 2010-38. November 9, 2010- November 23, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Western Bean Cutworm Update. Crop Observation and Recommendation Network (C.O.R.N.). 2010-24. August 3, 2010 - August 10, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Peak flight has passed for Western Bean Cutworm. Crop Observation and Recommendation Network (C.O.R.N.). 2010-23. July 27, 2010-August 3, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Western Bean Cutworm Update: Eggs and Larvae Found. Crop Observation and Recommendation Network (C.O.R.N.). 2010-22. July 20, 2010 - July 27, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Update on Western Bean Cutworm Flight. Crop Observation and Recommendation Network (C.O.R.N.). 2010-21. July 13, 2010 - July 20, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Western Bean Cutworm Counts Continue to Increase. Crop Observation and Recommendation Network (C.O.R.N.). 2010-20. July 7 - July 13, 2010.
    • Michel, A.P., R. Hammond, and B. Eisley. Western Bean Cutworm Catches Increasing Rapidly. Crop Observation and Recommendation Network (C.O.R.N.). 2010-19. June 29, 2010 - July 06, 2010.


    Progress 01/01/09 to 12/31/09

    Outputs
    OUTPUTS: The state of Ohio was sampled for evidence of European Corn Borer (ECB) and Western Bean Cutworm (WBC). Where located, infestation level and damage to corn was recorded. Results from our surveys were disseminated through the Ohio State University Extension Agronomic Crops Newsletter, and our newly developed OSU Agronomic Crop Insects website (http://entomology.osu.edu/ag/). In addition, information on the biology and management of WBC, including identification, trapping and scouting protocols, was presented at various field days. We also created a video for WBC scouting which can be viewed on our website. Fact sheets for both pests, as well as black cutworm, were updated and uploaded onto our website. Currently, 2 publications are in preparation regarding the biology, ecology and management, and documenting the eastward expansion. PARTICIPANTS: Dr. Ron Hammond (Department of Entomology) contributed to the fact sheets and dissemination of information. Members of the Ohio State University Extension Agronomic Crop Team deployed insect traps across the state. In addition, in 3 counties, private land owners volunteered to run traps at their locations. TARGET AUDIENCES: Updated information on the new pest, western bean cutworm, was uploaded to our webiste. PROJECT MODIFICATIONS: Not relevant to this project.

    Impacts
    The number of ECB collected was extremely low to non-existent. The number of WBC caught totaled 566, representing an increase for the 4th straight year, and Ohio's largest total to date. In addition, we found a single larva which is the first recorded find in the state of Ohio. Since WBC is a relatively new pest in OH (first detected in 2006), growers are now better prepared and trained in scouting and management through our dissemination efforts. Due to the rapid expansion of this pest, and informal working group of Eastern Great Lakes extension entomologists has been formed (IN, MI, OH, PA, NY and the provinces of Ontario and Quebec, Canada) to increase effective collaboration and information transfer.

    Publications

    • No publications reported this period