"Janet Baraclough" wrote in message
from Sacha contains these words:

(snip) what flitted through my mind is how
very careful some people are about not using animal manure that
contains veterinary medicines.

Many veterinary medicines used on herbivores, are intended to kill
insect parasites, including intestinal worms in the colon. Faeces
containing active ingredients
could possibly reach and kill beneficial worms, insects and organisms
in a compost heap.

Interesting point. I use masses of horse manure in my garden (fresh and
uncomposted) and have never asked the owner of the horses about her
vermicide use. It's never bothered me and certainly doesn't seem to bother
the worms who seem to respond very positively in both increasing numbers and
size by the application of masses of the stuff.

I've often wondered if the 'ban' on using manure in gardens because of
vermicides is just an urban myth given that intestinal worms and earth worms
would be two different species. I found this site which gives some info:
http://santacruzwire.com/index.php/m...c-gardens.html
(specifically about Ivermectin)
but would like to know for sure now the subject has been raised. Would one
of your vet contacts know for sure?