Scanmask Dr. Pye's 25 Million Live Beneficial Nematodes-Kills 230 Different Bugs If temperatures are over 85 degrees F. in your area, please choose expedited shipping. They are completely compatible with beneficial insects such as ladybugs, lacewings, and praying mantids and do not harm earthworms. Will not affect humans, animals, or plants Easy to use. These microscopic insects will seek out and destroy over 230 kinds of soil dwelling and wood boring insects Mix directly into the soil or apply with a sprayer