Managing Damaging Tree Insects

Borers, mites, scale and beetles are common tree pests in the late spring and summer.  Their presence can result in wilting, thinning of the canopy, premature leaf drop and branch dieback.  Many of these insects are not selective, feeding on various types of deciduous and evergreen species.

Treatments including the release of beneficial insects can be very effective for suppressing damaging pests.  Examples of natural predators include lady beetles, green lacewings, trichogramma wasps and predaceous mites.  When released as part of a managment program, these beneficials help eliminate problematic insects.  The first step to proper treatment is correctly identifying the type of infestation.  After diagnosis, the best method of treatment can be determined and timed appropriately for maximum effectiveness.