Wounding trees increases the likelihood of attack by boring insects, such as eucalyptus longhorned borers. Do not implant or inject trees more than once a year. Several systemic insecticide can be applied to landscape trees by professional pest control operators. Imidacloprid is labeled for application as a soil drench and for injection into soil beneath trees. This application method avoids the tree wounds that result from injecting or implanting trunks or roots.
Pesticides are poisonous.
Always follow all precautions and safety recommendations given on the container label. Store all chemicals in the original labeled containers in a locked cabinet or shed, away from food or feeds, and out of the reach or children, unauthorized persons, pets, and livestock. Confine chemicals to the property being treated. Dispose of empty containers carefully. Follow label instructions for disposal.