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): N.G. Rappaport; M.I. Haverty; P.J. Shea; R.E. Sandquist
    Date: 1994
    Source: Can. Entomol. 126: 1-5.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (221.09 KB)

    Description

    We tested the pyrethroid insecticide esfenvalerate in single, double, and triple applications for control of insects affecting seed production of blister rust-resistant western white pine, Pinus monticola Douglas. All treatments increased the proportion of normal seed produced and reduced the proportion of seed damaged by the western conifer seed bug, Leptoglossus occidentalis Heidemann. Only the triple application reduced the proportion of cones killed by the pine cone beetle, Conophthorus ponderosae Hopkins. Other seed-damaging insect species [seed chalcids, Megastigmus sp.; the fir conewonn, Dioryctria abietivorella (Grote); and seedworms, Cydia sp.] were present but in numbers too low to test for insecticide efficacy.

    Publication Notes

    • You may send email to psw_communications@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • 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

    Rappaport, N.G.; Haverty, M.I.; Shea, P.J.; Sandquist, R.E. 1994. Efficacy of esfenvalerate for control of insects harmful to seed production in disease-resistant western white pines. Can. Entomol. 126: 1-5.

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page