Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): M.A. Mohamed; J.D. Podgwaite
    Date: 1982
    Source: Great Lakes Entomologist. 15: 93-96.
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (1.35 MB)

    Description

    Linear regression analysis of probit mortality versus several concentrations of nucleopolyhedrosis virus of Neodiprion sertifer resulted in the equation Y = 2.170 + 0.872X. An LC50 was calculated at 1758 PIB/ml. Also, the incubation time of the virus was dependent on its concentration. Most insect viruses possess the potential of causing 100% mortality when employed against some pest species populations (Bailey 1973). However, Franz (1964) pointed out that such a result is not always desirable. For instance, if the virus proves persistent and capable of being transmitted by the target species, one would ideally like a small section of the population to survive, serving as a focus for future epizootics. Not only would this serve to reduce the environmental load of virus, if continuous application of virus was planned, but it would also serve to ensure that predator and parasitoid populations would remain intact. Though studies on mortality as a function of virus concentrations are only one of many aspects ensuring proper usage of these pathogens, they give us some predictive basis to achieve some of the aforementioned results. This paper reports on two aspects of the nucleopolyhedrosis virus (NPV) of Neodiprion sertifer (Geoffroy): first, the LC50; and second, mortality as a function of time at fixed concentrations.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, shobrla@fs.fed.us if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Mohamed, M.A.; Coppel H.C.; Podgwaite, J.D. 1982. Bioassay of the Nucleopolyhedrosis Virus of Neodiprion sertifer (Hymenoptera: Diprionidae). Great Lakes Entomologist. 15: 93-96.

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/49690