This product is a perfect option for controlling adelgids aphids chafers thrips elm leaf beetles leafhoppers leaf miners Japanese beetles mealy bugs whiteflies and many more! Key Product Features DIY Multi-Insect Killer is specifically designed for insect control for landscape ornamentals residential trees and interior plantscapes. It is not designed for treating any food-bearing plants. Systemic insecticides are taken up inside the plant so that every part of the plant contains the chemical. This ensures the product won t wash away and helps with the season-long control of all those annoying bugs. Using a power drill simply drill a hole into the trunk of your tree. Using the provided syringe applicator draw 1 ml of insecticide into the syringe. Slowly and completely deposit insecticide into your drilled hole. The ideal time to use DIY Multi-Insect Killer is when the tree is actively growing. You can treat trees anytime during the growing season but treatments earlier in the growing season are more successful.