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U.S. Forest Service
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United States Department of Agriculture


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https://www.fs.usda.gov/treesearch/content/pdf?name=Dose%20and%20Enantiospecific%20Responses%20of%20White%20Pine%20Cone%20Beetles,%20Conophthorus%20coniperda,%20to%20a-Pinene%20in%20an%20Eastern%20White%20Pine%20Seed%20Orchard