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IPM 25th2005 Annual Report

UC Statewide IPM Program

UC IPM Makes It Happen

IPM advisor spreads water quality message to growers

UC IPM Advisor Phil Phillips gave five IPM presentations on water quality to nearly 350 growers.

Tree and vine growers attended a workshop in English in Goleta. Phil presented two Spanish sessions that attracted strawberry, vegetable and berry growers in Santa Maria, and two sessions in Summerland that drew citrus, avocado, and nursery growers.

To date, more than 1,400 growers in the Central Coast have taken the Water Quality Workgroup courses. Mary Bianchi, horticulture farm advisor for San Luis Obispo County, under the auspices of the workgroup, leads the workshops. Julie Fallon, farm water quality planning program representative, coordinates the events.

PelicanTool helps determine pesticide impacts on water quality

When spraying pesticides, many factors determine whether the chemicals stay put or drift into our waterways. An addition to the UC IPM Web site compares pesticide impacts on water quality and lets readers readily compare risks to water quality among all the pesticides recommended in a UC IPM Pest Management Guideline for a specific crop and pest.

The new database provides information on environmental risk of pesticides. Use it to evaluate the potential for pesticides to move with water and eroded soil or organic matter, and to affect nontarget organisms. It can help farmers consider the risks of leaching and runoff in making pest management decisions, particularly pesticide choice. From a guideline, click on the "compare treatments" button to see the display.

The potential risk of leaching and runoff may be affected by the amount of pesticide used, the area covered, and how much pesticide comes in contact with the soil. While the program presents information for high-risk soils only, a user's input about these factors can be used to adjust the risk ratings given by the program.

The potential risk of leaching and runoff may be affected by soil type, the amount of pesticide used, the area covered, how much pesticide comes in contact with the soil, irrigation efficiency, rainfall probability, and residue management.

Although the program assesses hazard based on high-risk soil only, a reader may modify all of the other factors to adjust the risk ratings.

The program is an implementation of the Windows Pesticide Screening Tool (WIN-PST) developed by USDA-Natural Resources Conservation Service. Currently it lacks information on risks assessed for specific soil types, but efforts are under way to add that major feature.

Next article >> UC IPM offers accurate forecasting tool for cotton growers

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Statewide IPM Program, Agriculture and Natural Resources, University of California
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