Nematodes

With the use of the roaches' natural enemy, the nematode, only the roaches are effected. Nematodes are harmless little itty bitty worm like creatures.

Offered by Mark.

When I studied botany as a freshman, I remember the teacher was an expert on nematodes and always spoke of them as a plant parasite. They burrow into the roots of affected plants and greatly stymie the plant’s growth. So while they may be useful against roaches, they do live off plants.

Offered by Ed