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The organophosphate (OP) insecticides diazinon and chlorpyrifos have been frequently detected in the San Joaquin River, California, USA. Irrigation tail waters are a significant source of OP pesticides in the watershed. This study tested several management practices for reducing offsite movement of chlorpyrifos to surface water from flood irrigated alfalfa.(More)
In 1999, the Department of Pesticide Regulation (DPR) entered into an interagency agreement with the California Department of Food and Agriculture (CDFA) to monitor pesticide treatments for Red Imported Fire Ant (RIFA) control. The objective of the monitoring was to develop data on potential concentrations of bifenthrin, fenoxycarb, hydramethylnon,(More)
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