dewormer in horse manure

Hello

I think horse manure will be the easiest to get by in my area in big quantities.
The horses are not from organic farms, so there will be deworming given to them. I suppose this will come out the other end and therefore end up in the manure.

How bad is this for your soil?
Would it make any difference when the dung is fresh or after some time composting? I think about leaching out or concentrating or reacting away or maybe something else?

groensels
tyrr

short answer - it depends



i remember something about some manure causing issues a few years ago

the links i had are lost but i know Bentley has some info collected.

http://www.redwormcomposting.com/worm-farming/how-harmful-are-vermicides-in-manure/

new dung is dangerous. if you have the option definitely go for the year+ old grey stuff.

*please excuse my lack of reading comprehension - verm on the brain