Mark, again thanks for your feedback.
I have similar experiences with suppliers of faulty goods, they don’t acknowledge a problem.
At least your greenhouse tomatoes made it, a sign I think that the ap is almost broken down.
My contact at Viridor compost says
“Regarding chlopyralid, I would like to see such weed killers removed from the marketplace, but until that time, I agree that we need to be vigilant with testing and perhaps test for peas as well as tomatoes as they are particularly sensitive to these chemicals. Composting at high temperatures does however break down the complex chains and hormones rapidly even if it is present in small quantities.”
Clopyralid is the ap equivalent which is present in some lawn weedkillers. I find it unbelievable both that gardeners worry about “weeds” in lawns, and then use a lethal poison to kill them.
