Fumigant Use in California and an Assessment of Available Alternatives: Phase I Report on 1,3-D and Chloropicrin

Commissioned Report
Peer Reviewed

Commissioned by: California Department of Pesticide Regulation

Published: March 13, 2025 (Last Updated: March 13, 2025)

Phase I Report

Responding to a request from the California Department of Pesticide Regulation (DPR), the California Council on Science and Technology (CCST) completed the report “Fumigant Use in California and an Assessment of Available Alternatives: Phase I Report on 1,3-D and Chloropicrin.” DPR announced the release of the report via a press release. The full independent, scientific, and technical assessment is now available to download at DPR’s website.The Phase I report reviews the pre-plant soil fumigants 1,3-D and chloropicrin and their alternatives. The scope for Phase II of the study includes four additional pre-plant soil fumigants as well as fumigants used for treating post-harvest commodities and structures.

Front cover of fumigant study, with a blue accent bar down the left, a white background, feature image of an ag field, and the title, subtitle, and brief description, with CCST's logo

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Authors: Simmons, Christopher; Broome, Janet

Steering Committee: Holmes, Gerald J. (Chair); Kolok, Alan S. (Co-Chair); Carroll, Christine L.; Guthman, Julie