Ragan And Massey 75334 015006 Compare N Save Systemic Tree and Shrub Drench, 2.5 Gallon Control insects that infest trees and shrubs with Systemic tree & shrub insect drench with 147% Imidacloprid One easy application protects treated plants for 12 months The insecticide is absorbed through the roots into the plant for protection that won't wash off