Disclaimer: We have made every effort to ensure the accuracy of these citations and their locations on the internet. Websites sometimes change addresses and if you find the link broken, try typing the title of the paper into a search engine (e.g., Google) to locate the resource.
Bary, A., L. Myhre, and C. Cogger. 2002. Large pot greenhouse trial with clopyralid-sensitive garden plants. Washington State University Cooperative Extension, Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/Paper_Clopyralid_BigPot.pdf
Beyond Pesticides. 1988. Picloram: Chemical watch factsheet 8(3). http://www.beyondpesticides.org/pesticides/factsheets/Picloram.pdf
Beyond Pesticides. Unknown Date. Clopyralid: Chemical watch factsheet. http://www.beyondpesticides.org/pesticides/factsheets/clopyralid.pdf
Beyond Pesticides. 2011. Aminopyralid: Chemical watch factsheet 31(3): 21-22. http://www.beyondpesticides.org/infoservices/pesticidesandyou/documents/aminopyralid.pdf
Bezdicek, D., M. Fauci, D. Caldwell, and R. Finch. 2000. Compost Quality: New Threats from Persistent Herbicides. Agrichemical and Environmental News, October 2000, Issue No. 174.
Bezdicek, D., M. Fauci, D. Caldwell, R. Finch, and J. Lang. 2001. Persistent herbicides in compost. BioCycle, July 2001.
Cogger, Craig. 2005. Clopyralid in compost: questions and answers for gardeners and farmers in western Washington. Washington State University Cooperative Extension, Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/Paper_Clopyralid_QandA_v10.pdf
Cogger, C., A. Barry, and E. Myhre. 2002. Clopyralid: garden demonstration plots. Washington State University Cooperative Extension, Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/Paper_Clopryalid_Garden.pdf
Coker, C. 2013. Composters defend against persistent herbicides. In Biocycle, August, 2013.
Coker, C. 2014. Testing for persistent herbicides in feedstocks and compost. In Biocycle, January 2014. http://www.biocycle.net/2014/01/20/testing-for-persistent-herbicides-in-feedstocks-and-compost/
Coker, C. 2015. Coping with persistent herbicides in composting feedstocks. Biocycle, January 2015. http://www.biocycle.net/2015/01/14/coping-with-persistent-herbicides-in-composting-feedstocks/
Cox, C. 1998. Clopyralid Herbicide factsheet. Journal of Pesticide Reform 18(4): 15-19. https://d3n8a8pro7vhmx.cloudfront.net/ncap/pages/26/attachments/original/1428423336/clopyralid.pdf?1428423336
Cox, C. 1998. Picloram Herbicide factsheet. Journal of Pesticide Reform 18(1): 13-20. https://d3n8a8pro7vhmx.cloudfront.net/ncap/pages/26/attachments/original/1428423432/picloram.pdf?1428423432
Davis, J., S. E. Johnson, and K. Jennings. 2015. Herbicide carryover in hay, manure, compost, and grass clippings: caution to hay producers, livestock owners, farmers, and home gardeners. North Carolina Cooperative Extension. http://content.ces.ncsu.edu/herbicide-carryover.pdf
Devlin, D. L., D. E. Peterson, and D. L. Regehr. 1992. Residual Herbicides, Degradation, and Recropping Intervals. Kansas State University, C-707. http://www.ksre.ksu.edu/bookstore/pubs/C707.pdf.
Dow Agrosciences United Kingdom Web site with information on aminopyralid. http://www.manurematters.co.uk/
Dow AgroSciences. 2005. Aminopyralid Technical Bulletin. Form Number: 010-50433. Accessed: http://msdssearch.dow.com/PublishedLiteratureDAS/dh_0052/ 0901b80380052fe6.pdf
Dow AgroSciences. 2008. Aminopyralid product safety assessment. Form No. 233-00376-MM-0308 (5 pages). http://msdssearch.dow.com/PublishedLiteratureDOWCOM/dh_0105/0901b80380105d42.pdf?filepath=productsafety/pdfs/noreg/233-00376.pdf&fromPage=GetDoc
Dow AgroSciences (Australia). 2013. Pyridine Residue Management. http://msdssearch.dow.com/PublishedLiteratureDAS/dh_08bc/0901b803808bcf76.pdf?filepath=au/pdfs/noreg/012-10770.pdf&fromPage=GetDoc.
DowElanco. 1997. Clopyralid, a North American technical profile. Indianapolis, IN.
Goldstein, N., editor. 2012. Persistent herbicides in compost: conflict and resolution 1996-2011. BioCycle.
A collection of articles and reports published in BioCycle and Compost Science & Utilization, 1996-2011. This report is available online exclusively as a downloadable pdf (3.4 MB requires Acrobat 6.0 or newer). 81 pages, 19 Articles. Price is $29.95
Hagood, S., L Hipkins, P. Hipkins. 2012. Pyridine herbicide carryover: causes and precautions. Virginia Cooperative Extgension, Virginia Polytechnic Institute and State University. http://pubs.ext.vt.edu/VTTP/VTTP-6/VTTP-6_pdf.pdf
Lawrence, Kansas Waste Reduction and Recycling Division. 2005. Clopyralid and compost: How to avoid contaminating our community’s compost. http://www.lawrenceks.org/assets/swm/recycling/pdf/ClopyralidBrochure05.pdf
Martinson, Krishona. Harvesting ditch hay. University of Minnesota Extension. http://www.extension.umn.edu/agriculture/horse/nutrition/harvesting-ditch-hay/
Maine Department of Environmental Protection. 2003. Persistent herbicides in leaf and yard compost: Questions and answers for gardeners and farmers in Maine. http://www.maine.gov/dep/waste/residuals/documents/clopyralidincompostfactsheet_.pdf
McCollister, D. D., and N. L. Leng. 1969. Toxicology of picloram and safety evaluation of Tordon herbicide products. Down to Earth magazine 25: 5-10.
Michel, F. C., and D. Doohan. Clopyralid and other pesticides in compost. The Ohio State University Extension Factsheet, AEX-714-03, 2003. http://ohioline.osu.edu/aex-fact/pdf/0714.pdf.
Michel, F. C. 2015. How Widespread are persistent herbicides? Results of a Nationwide Compost Survey. U.S. Composting Council Annual Conference, Austin, TX.
Miltner, E., A. Barry, and C. Cogger. 2002. Clopyralid in turfgrass clippings: formulation and mowing effects on dissipation. Washington State University Cooperative Extension, Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/Paper_Clopyralid_turfgrass.pdf
Recycled Organics Unit (2004). Persistent Herbicides Risk Management Program: Research Report and Recommendations. Report prepared for the Department of Environment and Conservation (NSW, Sustainability Programs Division) by the Recycled Organics Unit, The University of New South Wales, Sydney, Australia. http://www.epa.nsw.gov.au/resources/warrlocal/050365-herbicides.pdf
S. Environmental Protection Agency. 2005. Environmental fate and ecological risk assessment for the registration of aminopyralid. Office of Prevention, Pesticides and Toxic Substances. http://www.epa.gov/pesticides/chem_search/cleared_reviews/csr_PC-005100_10-May-05_a.pdf
S. Environmental Protection Agency. 2012. Index to pesticide chemical names, part 180 tolerance information, and food and feed commodities (by commodity). Office Pesticide Programs. http://www.access.gpo.gov/nara/cfr/waisidx_07/40cfrv23_07.html
Washington State Department of Agriculture. 2010. Herbicides in compost: Whatcom County: herbicides in animal manure, compost raise concerns for growers and gardeners. http://www.whatcom.wsu.edu/ag/aminopyralid/Factsheet2010.pdf
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. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/PDF_Clopyralid_Bioassay.pdf
Washington State University. Unknown Date (~2002). Various plant species grown in one level of clopyralid. Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/PDF_Clopyralid_DamageVarSpp.pdf
Washington State University. Unknown Date (~2002). Response of beans to varying levels of clopyralid. Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/PDF_Clopyralid_BeanDamage.pdf
Washington State University. Unknown Date (~2002). Rating scale of clopyralid damage in peas. Puyallup Research & Extension Center. https://puyallup.wsu.edu/soils/wp-content/uploads/sites/411/2014/12/PDF_Clopyralid_PeaDamage.pdf
Westendorf, M., and U. Krogmann. 2004. Horses and manure. Rutgers Cooperative Research and Extension. Fact Sheet 036. http://www.esc.rutgers.edu/downloads/RLpage/FS036_HorsesAndManure.pdf
Whitt, M. B., and C. S. Coker. 2015. Understanding persistent herbicides. U. S. Composting Council, Fact Sheet #1. http://compostingcouncil.org/wp/wp-content/uploads/2015/06/USCC-PH-Fact-Sheet-1-for-web.pdf
Whitt, M. B., and C. S. Coker. 2015. Strategies to mitigate persistent herbicide contamination at your composting facility. U. S. Composting Council, Fact Sheet #2. http://compostingcouncil.org/wp/wp-content/uploads/2015/06/USCC-PH-Fact-Sheet-2-for-web.pdf
Whitt, M. B., and C. S. Coker. 2015. Implementing a plant growth testing program. U. S. Composting Council, Fact Sheet #3. http://compostingcouncil.org/wp/wp-content/uploads/2015/06/USCC-PH-Fact-Sheet-3-for-web.pdf