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By: Kowal, R. J. (R. Joseph), - United States. Forest Service.Edition:Publication info: [Washington, D.C.?], U.S. Dept. of Agriculture, Forest Service, [1960]Volume: no.49 (1960)Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Dendroctonus frontalis Diseases and pests Insect pests Pest Control Pine Southern pine beetleBHL Collections: