Critical Uses of Chlorpyrifos

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Identifying and Managing Critical Uses of Chlorpyrifos in Alfalfa, Almonds, Citrus and Cotton: DPR contracted with the University of California Statewide Integrated Pest Management Program (UC IPM) to convene industry leaders to work together to create commodity-specific guidelines regarding chlorpyrifos use in four important California crops. Participants included industry representatives, UC Cooperative Extension specialists, pest control advisers, growers, and project staff from DPR and UC IPM. Data and other information were gathered on chlorpyrifos’s role in pest management systems in alfalfa, almond, citrus, and cotton, and critical uses were identified. A report presents the findings of crop-specific teams and includes pest profiles of important arthropod pests, management options for each pest, the criticality of chlorpyrifos in each crop’s IPM system, and recommendations for research, education, and extension.

Executive Summary, PDF (152 kb)

Identifying and Managing Critical Uses of Chlorpyrifos in Alfalfa, Almonds, Citrus and Cotton Full Report, PDF (5.3 mb)

Following the release of this report the project moves into an outreach phase that will include the creation, updating, and extension of educational products and decision support tools. These will include best practices that will help licensed Pest Control Advisors (PCAs), growers, and other stakeholders understand when and how chlorpyrifos should be applied to minimize risks if the use of chlorpyrifos is required to address critical pest management needs.

Final Project Report, PDF (4.9 mb)

For content questions, contact:
Nino Yanga
Department of Pesticide Regulation
Pest Management and Licensing Branch
1001 I Street, P.O. Box 4015
Sacramento, CA 95812-4015
Phone: (916) 445-6387
Fax: (916) 324-9006