Identify conifer diseases and insect pests fast in the Pacific Northwest. This field guide helps forest resource managers and field crews quickly recognize the signs and signs of common diseases and insects that affect Oregon and Washington conifers. It emphasizes practical, on-site identification rather than exhaustive detail. This edition is designed for practical use in the field. It explains a systematic approach to diagnosing problems, with flow charts to determine which tree part is affected and which causal group to consider. It combines written descriptions with photos and drawings to help confirm identifications in realistic settings.
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