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Common Insects Damaging Junipers, Cedars and Cypresses in British Columbia

By R. W. Duncan

Introduction

Basic descriptions and life histories are provided to aid in the recognition and control of insects commonly found damaging the following cupressaceous trees: junipers (Juniperus spp.), cedars (Thuja spp.), and cypresses (Chamaecyparis spp., Cupressus spp.).

Feeding damage caused by these insects occurs most frequently on trees in urban areas and includes twig and foliage mining, defoliation, twig pruning, root pruning, cambium-boring, and sap sucking resulting in chlorosis of foliage.

For more information, see the Common Insects Damaging Junipers, Cedars and Cypresses Forest Pest Leaflet in the Canadian Forest Service bookstore.