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): Abdul K. A. Mohamed; Lucius Lewis; Denise Lewis
    Date: 1985
    Source: In: Grimble, David G.; Lewis, Franklin B., coords. Proceedings, Symposium: Microbial control of spruce budworms and gypsy moths; 1984 April 10-12; Windsor Locks, CT. Gen. Tech. Rep. NE-100. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 77-81
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (450.35 KB)

    Description

    In food consumption and utilization studies, observations were confined to a period of 5 days after which mortality of Erynia radicans larvae began to occur. Mortality due to the fungus was 76 and 83% in male and female larvae, respectively. In control larvae the pupation rate was over 95%. Control larvae of both sexes consumed significantly (P = 0.05) more food than fungus treated larvae on day 4 and 5. Treated as well as control larvae showed a continuous gain in body weight up to day 3, following which treated larvae of both sexes gained significantly (P = 0.05) less weight than the control. Fungus infected larvae were also less efficient in converting ingested and digested food to body substances (ECI and ECD) on day 4 and 5 in females and on day 5 in males. Pupae of both sexes from treated larvae weighed less than the control. Fecundity of adults arising from fungus treated larvae was reduced by approximately 36.4% compared with the control.

    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, Abdul K. A.; Lewis, Lucius; Lewis, Denise. 1985. The effect of Erynia radicans on food consumption, utilization and fecundity by the spruce budworm, Choristoneura fumiferana. In: Grimble, David G.; Lewis, Franklin B., coords. Proceedings, Symposium: Microbial control of spruce budworms and gypsy moths; 1984 April 10-12; Windsor Locks, CT. Gen. Tech. Rep. NE-100. Broomall, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 77-81

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/11980