Quote Originally Posted by nidhogg View Post
I really do not understand that article. Ivermectin is a chemical drug - what is the stuff about a bacteria?

No understand.
You're right, they didn't explain it very well.

Ivermectin and other avermectins (insecticides most frequently used in home-use ant baits) are macrocyclic lactones derived from the bacterium Streptomyces avermitilis.