Herbicide Residues in Manure, Compost, or Hay
Leaf malformation and stem bending/twisting due to higher doses of aminopyralid.
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Supplementary Files



herbicide carryover
crop injury

How to Cite

Ferrell, Jason A., Peter Dittmar, Brent A. Sellers, and Pratap Devkota. 2020. “Herbicide Residues in Manure, Compost, or Hay: SSAGR415/AG416, Rev. 05/2020”. EDIS 2020 (4). Gainesville, FL. https://doi.org/10.32473/edis-ag416-2020.


Some manure-based products can contain herbicide residues that can affect the growth of sensitive plants. A simple plant bioassay can be conducted to test for herbicide contamination. Written by J. A. Ferrell, P. J. Dittmar, B. A. Sellers, and P. Devkota, and published by the UF/IFAS Agronomy Department, revised May 2020.

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International (CC BY-NC-ND 4.0) license.