Download or read book Christmas Tree Diseases, Insects & Disorders in the Pacific Northwest written by Gary A. Chastagner and published by . This book was released on 1997 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes integrated pest management principles; seasonal monitoring activities for disease and insect pests; diseases and disorders (root rots; cankers and galls; needle diseases of Douglas-Fir, Pine, Spruce, and True Firs); insect and mite pests (scales, adelgids and true aphids, moths, beetles, flies, mites, predators and parasites); environmental stresses (drought, heat, flooding); chemical and mechanical damage (atrazine, tire damage); soil related problems (nutrient imbalances, fertilizer burn), and vertebrate pests (birds, voles and mice, gophers). Numerous color photos. Graphs and charts.