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The forest insect situation, Lake States 1955

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By: Beckwith, L. C. - Ewan, Herbert G. (Herbert George), - Lake States Forest Experiment Station (Saint Paul, Minn.)

Publication info: St. Paul, Minn, Lake States Forest Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1956

Holding Institution: U.S. Department of Agriculture, National Agricultural Library
Identification of hardwood insects by type of tree injury, north-central region

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By: MacAloney, Harvey John, - Ewan, Herbert G. (Herbert George),

Publication info: [St. Paul], Lake States Forest Experiment Station, 1964

Holding Institution: U.S. Department of Agriculture, National Agricultural Library