You are here: Home
/ Publication Information
Title: Efficacy of esfenvalerate for control of insects harmful to seed production in disease-resistant western white pines.
Author: Rappaport, N.G.; Haverty, M.I.; Shea, P.J.; Sandquist, R.E.
Source: Can. Entomol. 126: 1-5.
Publication Series: Not categorized
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.
- 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.
XML: View XML
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.
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility