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Sexing spruce budworm pupaeAuthor(s): Daniel T. Jennings; Mark W. Houseweart
Source: Research Note NE-255. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-2.
Publication Series: Research Note (RN)
Station: Northeastern Research Station
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DescriptionSpruce budworm pupae can be sexed by the location and shape of the genital opening. The opening spans the 8th abdominal segment in female pupae and is found on the 9th segment in male pupae.
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CitationJennings, Daniel T.; Houseweart, Mark W. 1978. Sexing spruce budworm pupae. Research Note NE-255. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-2.
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