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Christmas Tree Diseases, Insects & Disorders in the Pacific Northwest
Gary A. Chastagner
其他書名
Identification and Management
出版Washington State University, Cooperative Extension Service, 1997
主題Technology & Engineering / Agriculture / Forestry
ISBN07881733409780788173349
URLhttp://books.google.com.hk/books?id=o_FOAQAAMAAJ&hl=&source=gbs_api
註釋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.