Yes. Ivermectin.
That is interesting about your horses. It would be really nice if a more natural product could be successful with dogs...AND Humans!
Ivermectin is powerful stuff.
“It would be really nice if a more natural product could be successful with dogs...AND Humans!”
There is...the same diatomaceous earth (DE) that we use for the horses. Works for cattle, dogs, cats and people. We buy DE in a 50 lb bag, and it is food grade. We pay about $30 a bag at the feed elevator. Note...Do NOT use the stuff that is made for swimming pool filters.
DE also kills insects.