Growing healthy seedlings: identification and management of pests in Northwest forest nurseries
Forest Pest Management, U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1990 - Nature - 110 pages
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adults applied areas assay bareroot nurseries bark benomyl caused chemical chlamydospores chloropicrin chlorothalonil cides conidia conifer cover crop cranberry girdler Cutworm damping-off dead Department of Agriculture develop disease Douglas-fir Douglas-fir seedlings effective feeding fertilizers Figure foliage forest nurseries Frost damage fungal fungi fungicides fungus Fusarium Fusarium hypocotyl rot Fusarium root rot germination gray mold growing season Hamm healthy hosts hypocotyl inoculum insecticides irrigation killed larch larvae lings Loss potential Lower stem canker lygus bugs mineral nutrient moisture mortality needle cast nematode nursery beds nursery managers nursery pests occurs Oregon State University Pacific Northwest pathogens Pest Management Pesticide damage Pesticide phytotoxicity pesticides Phoma blight Phytophthora Phytophthora root rot phytotoxicity plant Pratylenchus reduce root system Root weevil seed seedbeds seedlings seedlots Selected references sowing species spores spring spruce storage stunted summer susceptible symptoms appear temperatures tion transplants trees true firs U.S. Department weeds western western larch Xiphinema zoospores