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The Impact of Insects on Second-Year Cone Crops in Red Pine Seed-Production AreasAuthor(s): William J. Mattson
Source: Research Note NC-53. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Publication Series: Research Note (RN)
Station: North Central Research Station
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DescriptionSecond-year cone crops in red pine seed-production areas have been severely damaged by five species of insects. Control of the two most destructive pests could increase present seed yields in most areas by at least 50 percent. Some seed-production areas may not produce harvestable seed crops until cone-insect populations are suppressed.
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CitationMattson, William J. 1968. The Impact of Insects on Second-Year Cone Crops in Red Pine Seed-Production Areas. Research Note NC-53. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
KeywordsInsects, red pine
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