Sexing spruce budworm pupae

Daniel T. Jennings; Mark W. Houseweart

Treesearch

Sexing spruce budworm pupae

Informally Refereed

Authors:

Daniel T. Jennings, Mark W. Houseweart

Year:

1978

Type:

Research Note

Station:

Northern Research Station

Source:

Research Note NE-255. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-2.

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Download (PDF 364 KB): https://research.fs.usda.gov/download/treesearch/10461.pdf

Abstract

Spruce 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.

Citation

Jennings, 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.