Progress 01/01/13 to 09/30/13
Outputs
Target Audience: County Extension Educators, Master Gardeners, Nursery Operators, Commercial Growers (fruit, onion, potato), Forest Service personnel. Changes/Problems:
Nothing Reported
What opportunities for training and professional development has the project provided? Participation in the national, and Pacific Regional meetings of American Phytopathological Society. How have the results been disseminated to communities of interest? In person, in writing, by fax, by email, or phone. Technical presentations were made to Master Gardeners and at fruit and grape growers meetings. Pacific Northwest Extension Publication on Corn Smuts was published. New information on distribution and hosts of powdery mildews was published in a journal article. What do you plan to do during the next reporting period to accomplish the goals? Provide disease diagnostic services to the plant samples submitted by the clientele.Identify and publish new information on the incidence of powdery mildews in ornamental plants. Provide Master Gardener training, and disease identification classes in crops as perrequests from the county extension educators and crop specialists.
Impacts
What was accomplished under these goals?
About 200 plant samples submitted either physically and/or as digital images were processed. The etiology of the problem in a majority of the samples was abiotic (environmental, nutritional, cultural, herbicide, etc.) while a lesser numberwere of biotic (fungal, bacterial or viral) nature. Participated in regular monthly conference callsof Western Plant Diagnostic Network to discuss new pest alerts in the region, diagnostic protocols, laboratory accreditation requirements, etc. Presented classes on disease diagnosis and disease management to Master Gardener training programs in Ada and Canyon counties in Idaho. Presented information on tree fruit diseases and disease management to the fruit growers in the region. Presented information on grape diseases and their managementat the Table Grape Growers meeting. Documented several new records of powdery mildews and new hosts of previously known powdery mildews in ornamental plants in Idaho and Oregon. Five sentinel plots of onions in growers' fields were monitored throughout the growing season for incidence of disease symptoms (mainly IYSV) and pests (mainly onion thrips).
Publications
- Type:
Journal Articles
Status:
Published
Year Published:
2013
Citation:
Braun, U. and Mohan, S.K. 2013. New records and new host plants of powdery mildews (Erysiphales) from Idaho and Oregon. Schlechtendalia 27:7-10.
- Type:
Other
Status:
Published
Year Published:
2013
Citation:
Mohan, S.K., Hamm, P.B., Clough, G.H., and du Toit, L.J. 2013. Corn Smuts. Pacific Northwest Extension Publication, PNW 647.7 pp.
- Type:
Book Chapters
Status:
Awaiting Publication
Year Published:
2014
Citation:
Mohan, S.K., Berthier-Schaad, Y., and Schaad, N.W. 2014? Detection of Pseudomonas syringae pv. phaseolicola in bean seeds. In 'Manual on Detection of Plant Pathogenic Bacteria in Seed and Planting Material'. APS Press, St. Paul, MN
- Type:
Book Chapters
Status:
Awaiting Publication
Year Published:
2014
Citation:
Asaad, S., Sands, D.C., and Mohan, S.K. 2014? Detection of Pseudomonas syringae pv. syringae in wheat. In 'Manual on Detection of Plant Pathogenic Bacteria in Seed and Planting Material'. APS Press, St. Paul, MN
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Progress 01/01/12 to 12/31/12
Outputs
OUTPUTS: More than 200 plant samples were analyzed for diseases and the results, along with disease management options, were conveyed to the clients. Twenty-eight onion samples of 100 bulbs each consisting of 18 varieties randomly collected at harvest in the fall of 2011 from eight growers in the Treasure Valley were evaluated for neck rot incidence after four months of storage at ambient temperature. Neck rot incidence was very low (0 to 7%). Two bulb samples were sent for spectral scanning, volatile characterization and development of "electronic nose." From the 2012 harvest, five samples were collected and are being held in storage. Five sentinel plots in commercial onion fields were monitored bi-weekly from April to October for pest (thrips) and disease (IYSV) incidence and the data were uploaded to onion ipmPIPE website. Reports of new disease occurrence relating to blight of yellow nutsedge, powdery mildew of lilac, bacterial spot of plum and pluot have been submitted for publication. PARTICIPANTS: County extension agents (Canyon and Payette Counties), Colorado State University (Howard Schwartz), Western Plant Diagnostic Network (Rick Bostock), California Department of Food and Agriculture (Cheryl Blomquist) TARGET AUDIENCES: Home owners, master gardeners, county extension educators, onion growers, apple growers, nursery managers. PROJECT MODIFICATIONS: No Research Support Scientist (as indicated in the approved project) was provided by the institutional units involved.
Impacts
Home owners, master gardeners, nursery operators, county extension agents, commercial growers (fruit, onion, potato, poinsettia, lillies, etc.) were able to adopt appropriate disease management strategies based on the disease identification and management information provided. Onion growers were able to utilize the real-time pest and disease information posted on the website.
Publications
- No publications reported this period
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Progress 07/01/11 to 12/31/11
Outputs
OUTPUTS: Fifteen sweet corn seed treatments were evaluated for their efficiency against seedborne and soilborne pathogens. Twenty four 100-bulb samples of 16 different onion varieties were collected at harvest time from the commercial onion grower fields and were put in storage for evaluation of neck rot incidence. More than 200 samples of both roots and shoots of commonly occurring weeds were collected and tested for Iris yellow spot virus (IYSV) using two different test kits, one from Agdia and one from DSMZ. These samples will be further analyzed using PCR in our cooperator's laboratory. Five sentinel plots onions in growers' fields were monitored throughout the growing season for pests (mainly thrips) and diseases (mainly IYSV). The pest/disease data were uploaded to onion ipmPIPE website http://apps.planalytics.com/aginsights/pipehome.jsp for use by the stakeholders. Two sentinel plots of beans in growers' fields were monitored for disease (mainly rust and viruses) and pests (mainly aphids, mits and beetles). The pest/disease rresults and state commentary were periodically uploadeto the web site http://legume.ipmpipe.org Approximately, 140 plant samples were analyzed for disease identification. PARTICIPANTS: County extension agents (Canyon and Twin Falls Counties), Malheur Experiment Station of Oregon State University (Clint Shock), Colorado State University (Howard Schwartz), Western Plant Diagnostic Network (Rick Bostock). TARGET AUDIENCES: Master gardeners, county extension agents, onion growers, bean growers, sweet corn seed companies, sweet corn growers, plant protection researchers. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.
Impacts
Homeowners and master gardeners were able to apply appropriate management measures based on the disease identifications provided. Onion and bean growers were able to utilize the real-time pest and disease information posted on the respective websites.
Publications
- No publications reported this period
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