| There is a good microbial insecticide that only affects grasshoppers and crickets. The protozoan Nosema locustae is sold under the names NOLO Bait, Grasshopper Spore, and others. This can be effective if you put it out early in the season, when you first see the tiny grasshoppers. It is not very effective on the big ones. Grasshoppers are cannibalistic and will eat dead ones, thus spreading the disease themselves. As it is perishable, you should try to order it when you think you will need it although it can keep for a while in the refrigerator. |
Here is a link that might be useful: NOLO Bait