Are tree or soil injections used to treat any other pests or disease?
A. Both tree and soil injections are used to apply fertilizers and other insecticides. Pests targeted by these treatments include Japanese beetles, elm leaf beetles, mealybugs, thrips, leafhoppers, whiteflies, and aphids. In addition, tree injection applications are used to treat Dutch elm disease, anthracnose, woolly adelgid in hemlocks, and oak wilt.