Quote: They are the Bt bits.
I use a half unit, with the worst months doubled. I've got around 150 chickens, forty-ish turkey poults, rabbits, calves, a cat, and four big doggies. No horses.
The Bt is safe for mammals and fish, but it affects the life cycle of lots of insects. It's not species specific.
Yeah, it said it was safe for other species, it was for mosquitos. It listed all the normal.........pond, swimming pools, standing water, flower pots, tires, tree trunks, etc. Just didn't say troughs so I wanted to be sure. I'm assuming yes, but I'll call their customer service line. I have to call them anyway, because my chicken numbers are WAY higher than the 115 cap for just ordering. I'm more in the 400-500 numbers.