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How to separate damage by the European pine shoot moth, the Zimmerman pine moth, and the pitch mass borer

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By: Talerico, Robert L., - Lake States Forest Experiment Station (Saint Paul, Minn.)

Publication info: St. Paul, Minn, Lake States Forest Experiment Station, [1959]

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

Subjects: Diseases and pests Field guides forest damage Identification Insect pests Michigan Pine Pinus Rhyacionia buoliana
Weather station records not an accurate guide to temperatures lethal to the shoot moth

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

Publication info: St. Paul, Minn, Lake States Forest Experiment Station, 1957

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

Subjects: cold tolerance Larvae Physiological effect Rhyacionia buoliana Temperature