posted 6 years ago
It will not harm your soil biota to use Milky Spore, it will simply be another beneficial living in your soil.
Paenibacillus popilliae (formerly Bacillus popilliae) is a soil-dwelling, Gram-positive, rod-shaped bacterium.
It only causes disease in beetle grubs. It won't even harm the cicada larve living in your soil, should you have some of those.
Redhawk