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    Author(s): Gilbert Levesque
    Date: 1963
    Source: Research Note NE-2. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-3
    Publication Series: Research Note (RN)
    Station: Northeastern Research Station
    PDF: View PDF  (278.25 KB)

    Description

    Because variation in sex ratio is an important factor in the population dynamics of the gypsy moth (Porthetria dispar), it is necessary to have some means of determining the ratio of males to females in a population at the beginning of the larval period as well as in the later stages. For determining the sex of fully developed embryos and early-instar larvae, a simple whole-mount microscope technique has been devised.

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    Citation

    Levesque, Gilbert. 1963. A technique for sexing fully developed embryos and early-instar larvae of the gypsy moth. Research Note NE-2. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-3

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