How are the insecticide injections made to the tree?
A. Imidacloprid is applied through either tree trunk or soil injections under USDA supervision. Trunk injections are applied directly into the trunk of the tree. Soil injections are applied directly into the soil around the base of the tree. The number of injections (trunk or soil) required per tree is dependent on the size of the tree. With both methods of injection, the insecticide moves upward into stems, twigs, and foliage. The intent of the injection treatments is to deliver the active ingredient of the pesticide to active tree-growth areas, where the beetle would be expected to feed and lay eggs.
A. Imidacloprid is applied through either tree trunk or soil injections under USDA supervision. Trunk injections are applied directly into the trunk of the tree. Soil injections are applied directly into the soil around the base of the tree. The number of injections (trunk or soil) required per tree is dependent on the size of the tree. Soil injections can be applied during the spring and fall. With both methods of injection, the insecticide moves upward into stems, twigs, and foliage. The intent of the injection treatments is to deliver the active ingredient of the pesticide quickly from the site of application to active tree-growth areas, where the beetle would be expected to feed and lay eggs.
