Recently the UK press has been abuzz with news of a 'new' class of broad-leaf herbicides that are persistant in animal manures and will ruin vegetable gardens.
As I was spreading composted manure and hay in my garden this spring, it occurred to me that I have not asked my latest hay supplier about his herbicide use. I did a bit of research on these herbicides, and found that three different active ingredients, formulated and marketed under multiple names, have been implicated in secondary destruction of broadleaf crops: picloram (commonly sold as Tordon, Grazon, and Pathway), clopyralid (commonly sold as Stinger, Curtail, and Transline) and aminopyralid (commonly sold as Milestone, Milestone VM, and ForeFront R&P).
I found this release from the U MN extension service, and thought that I would share it with the group. For those of you who use hay and manure in your gardens/orchards:
http://www.extension.umn.edu/distribution/livestocksystems/M1197.html
Betsy Hilborn
7a NC
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