WSU Whatcom County Extension

Herbicide Contamination of Organic Matter

WSU Whatcom County Extension             



US Environmental Protection Agency - Office of Pesticide Programs
Aminopyralid in Manure and Compost


Dow AgroSciences. Manure Matters Website


Washington State University and Washington State Department of Ecology. 2002. Bioassay test for Herbicide Residues in Compost: Protocol for Gardeners and Researchers in Washington State.


United States Office of Prevention, Pesticides Environmental Protection and Toxic Substances
- Pesticide Fact Sheet


Rynk, R. 2002. Prevalence and Fate of Clopyralid in Compost. BioCycle.


Bezdicek, D., M. Fauci, D. Caldwell, R. Finch and J. Lang. 2001. Persistent Herbicides in Compost.


Journal Article: Fast, B.J, J. A. Ferrell, G.E. MacDonald, B.A. Sellers, A.W. MacRae, L.J. Krutz, W.N. Kline. 2011. Aminopyralid soil residues affect rotational vegetable crops in Florida. Pest Management Science, n/a. doi: 10.1002/ps.2119


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WSU Whatcom County Extension • 1000 N. Forest St., Bellingham, WA 98225 • (360) 778-5800 •