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Funded Project
Funding Program: Integrated Pest Management Competitive Grants Program
Project Title: Reducing Off-target Spray Drift and Pesticide Use Through Direct Education and Demonstration to Pesticide Applicators in California Vineyards
Project Director (PD):
Fritz Westover [1]
Lead State: CA

Lead Organization: Vineyard Team
Cooperating State(s): New York
Undesignated Funding: $24,315
Start Date: Mar-01-2014

End Date: Dec-30-1899
Pests Involved: Not specified
Site/Commodity: Grapes
Area of Emphasis: drift reduction, improved pesticide application
Summary: Proper calibration of pesticide spray equipment can markedly reduce off-target spray drift. Furthermore, there are newer spray application technologies that have been shown to reduce drift and pesticide use. A top priority of the Pest Management Strategic Plan for California Winegrapes is to better educate growers and pesticide applicators about various sprayer technologies and their effective operation (proper calibration and application use rates, timing, coverage, and placement). The Strategic Plan also encourages the preparation and distribution of pertinent educational material and how-to-calibrate demonstrations, and collaboration with research initiatives elsewhere in the world.

The purpose of this outreach and implementation project is to empower growers in significant grape producing regions of California with the most current research-based information to reduce off-target drift of pesticides, reduce overall pesticide use, and improve spray efficiency through a series of educational workshops directed by the Vineyard Team in collaboration by Dr. Andrew Landers of Cornell University. The workshops will increase grower adoption of practices by demoonstrating both environmental and economic benefits of reduced drift and improved application efficiency. Through demonstration, growers will learn to modify their existing practices and evaluate low volume and drift reducing sprayer technologies including electrostatic and recycling tunnel sprayers. An online educational module will be developed from these workshops, extending the impact of this program to other agricultural regions. Attendees of the live workshops and online modules will be surveyed to determine baseline information regarding current spray practices by pesticide applicators, intention to adopt, and actual adoption of new practices.


Objectives: 1. Equip grape growers with the most recent research-based information on pesticide spray drift reduction in three important California winegrape growing regions through interactive live workshops and field demonstration and create an online educational module to extend the information to a broad audience.

2. Increase grower adoption of practices by performing a cost effectiveness analysis (reduced pesticide use and improved application efficiency) with live demonstration of low volume and drift reducing sprayer technologies including electrostatic and recycling tunnel sprayers.



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