Field selection for esfenvalerate resistance by the Colorado potato beetle

Hanwen Huang, Zane Smilowitz, Michael Craig Saunders, Randall Weisz

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Five insecticide application regimes were evaluated for two years to determine their influence on the development of esfenvalerate resistance by the Colorado potato beetle (CPB), Leptinotarsa decemlineata (Say). These included sequential applications of esfenvalerate; two alternated uses of esfenvalerate, azinphosmethyl, endosulfan, oxamyl, and Bacillus thuringiensis or cryolite; an IPM program; and one early season esfenvalerate application. Both CPB adults and first instars were tested for esfenvalerate resistance before and after insecticide applications. The LC50's in the early 1992 season were correlated with values in the late 1991 season. However, over the winter, esfenvalerate resistance of CPB adults decreased, but was relatively stable for first instars. Esfenvalerate LC50's late in the season were generally higher than values early in the season. Increases in esfenvalerate LC50's were correlated with the number of esfenvalerate applications made in these fields during the growing season, with the greatest increase found in the sequential esfenvalerate treatment.

Original languageEnglish (US)
Pages (from-to)1-12
Number of pages12
JournalAmerican Potato Journal
Volume72
Issue number1
DOIs
StatePublished - Jan 1 1995

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esfenvalerate
Leptinotarsa decemlineata
lethal concentration 50
pesticide application
cryolite
instars
oxamyl
endosulfan
Bacillus thuringiensis
growing season

All Science Journal Classification (ASJC) codes

  • Plant Science

Cite this

Huang, Hanwen ; Smilowitz, Zane ; Saunders, Michael Craig ; Weisz, Randall. / Field selection for esfenvalerate resistance by the Colorado potato beetle. In: American Potato Journal. 1995 ; Vol. 72, No. 1. pp. 1-12.
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Field selection for esfenvalerate resistance by the Colorado potato beetle. / Huang, Hanwen; Smilowitz, Zane; Saunders, Michael Craig; Weisz, Randall.

In: American Potato Journal, Vol. 72, No. 1, 01.01.1995, p. 1-12.

Research output: Contribution to journalArticle

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