The forest insect and disease situation, Lake States, 1958
Gerald William Anderson, Donald C. Schmiege, Lake States Forest Experiment Station (Saint Paul, Minn.)
Lake States Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1959 - Forest insects - 18 pages
What people are saying - Write a review
We haven't found any reviews in the usual places.
acres of Federal acres of red aerial aspen stands attacked blister rust control Boxelder blight Choristoneura control measures dead trees Department of Agriculture Dutch elm disease Entomologist European pine shoot Florence County Forest Service forest tent caterpillar gypsy moth hard maple heavy defoliation Hypoxylon cankers insect and disease jack-pine budworm Lake States Forest larch sawfly leaf rollers losses Lower Michigan maple blight Maple Dieback Methyl bromide Michigan's Lower Peninsula Minn North Dakota northern Wisconsin northwestern Wisconsin Norway spruce noticeably defoliated Nursery Root Rots Nymphal parasite pine root collar pine shoot moth Plant Industry plots poplar borer populations protect pine growing red pine plantations reported in Michigan reported in Minnesota root collar weevil rust cankers Saratoga spittlebug season serious pest severe defoliation species spray spruce budworm throughout the Lake tions traps tree mortality U. S. Forest Serv University of Wisconsin Upper Michigan webworm white pine white-pine weevil Wisconsin counties