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Funded Project |
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Funding Program:
Integrated Pest Management Competitive Grants Program |
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Project Title:
Informed Risks and Information Driven Decision Making for Spider Mites |
Project Directors (PDs):
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Lead State: WA Lead Organization: Washington Hop Commission |
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Cooperating State(s):
Washington, Oregon |
| Undesignated Funding: $29,965 |
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Start Date: Mar-01-2018 End Date: Mar-01-2018 |
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Pests Involved: Twospotted spider mite |
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Site/Commodity: Hop |
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Area of Emphasis: Entomology; decision aid |
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Summary:
The twospotted spider mite, Tetranychus urticae Koch, is pest of numerous plants worldwide. Hop is a preferred host of spider mites, and spider mites are an annual problem in most commercial growing regions worldwide. Management of this pest is increasingly difficult due to widespread resistance to multiple miticides.
A central component of a successful IPM system is the ability to make crop management decisions with relative certainty that the management actions will avoid crop damage and minimize economic risk. However, action thresholds for spider mites supported by empirical data do not exist. Drawing from extensive historical data sets, we proposed to: 1. Identify risk factors for spider mite damage to hop cones and formalize risk factors into a decision aid to estimate the likelihood of crop damage. 2. Develop and deliver a stakeholder-driven outreach program that explains, integrates, and demonstrates new concepts for spider mite management to producers and their advisers. The association of key predator species and cost of management errors will be considered explicitly in a decision theoretic framework to make this information fully transparent to users and considered in setting treatment thresholds. This initiating project aligns perfectly with stakeholder priorities articulated in the 2015 Pest Management Strategic Plan for U.S. Hops, priority areas for the Western IPM Center, and the National Road Map for IPM. Successful completion of this project will provide the foundation for future work to finally develop and implement a decision aid for this important pest. Objectives: 1.Identify risk factors for spider mite damage to hop cones and formalize risk factors into a decision aid to estimate the likelihood of crop damage. 2.Develop and deliver a stakeholder-driven outreach program that explains, integrates, and demonstrates new concepts for spider mite management to producers and their advisers. |
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