Hello; As the article in the above mentioned subject was some time ago, replying to it seemed redundant...I am a Retired Pastor who owns a small goat farm in upstate Maine...I never use anything other than DE and always have...have goats for sometime and never had a vet up here once...Only thing they get is an Antibiotic (Sub-Q) when needed. (only had to do once on my doe)...even go so far as to spread it around their stales in the barn...here is the Irony of this...My youngest son, (7 of the little darlings) works for an extermination company (Modern Pest Services)...he has offered and even given me chemicals to keep up the maintenance of my barn...refused and will never use anything other then DE on or around my babies...now thanks to your article, I am armed with facts to back up what we debate!...keep up the awesome job...Sincerely, Rev. Ken