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Needle and Broom Rusts of True Firs

E. Wegwitz

Introduction

Tree rust diseases affect many native and exotic plants growing in British Columbia (B. C.). They may affect foliage, branch-es and trunks of forest trees. Perhaps the best known rust disease in the province is the white pine blister rust caused by the fungus Cronartium ribicola (Leaflet No. 26). This dis-ease killed millions of trees here during the first part of this century. Other rust diseases also continue to affect reforestation and management planning in B. C., especially for pines. There are several known needle and broom rusts of true firs in the British Columbia -Yukon Region.

For more information, see the Needle and Broom Rusts of True Firs Forest Pest Leaflet in the Canadian Forest Service bookstore.