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  1. Duration of the Larval, Pupal, and Moth Stages of the Southern Pine Coneworm Dioryctria Amatella (Hulst)

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    Author(s): Isadore L. Williams; Carl W. Fatzinger
    Date: 1980
    Source: Res. Note SE-295. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 4 p.
    Publication Series: Research Note (RN)
    Station: Southeastern Forest Experiment Station
    DOI: https://doi.org/10.2737/SE-RN-295
    PDF: View PDF  (112 KB)

    Description

    The day's duration of each developmental stage of the southern pine coneworm, Dioryctria Amatella (Hulst),when reared on artificial medium was determined under controlled laboratory conditions. These results will provide a method for estimating the availability of the different stages during rearings without the necessity of measuring larval-head capsule widths or closely observing colonies for evidence of larval ecdysis, pupation, or moth emergence.

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    Citation

    Williams, Isadore L.; Fatzinger, Carl W. 1980. Duration of the Larval, Pupal, and Moth Stages of the Southern Pine Coneworm Dioryctria Amatella (Hulst). Res. Note SE-295. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 4 p.

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    Keywords

    duration, head capsule, life stage, pupation

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