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Titolo:
Synergism of tebufenozide in resistant and susceptible strains of obliquebanded leafroller (Lepidoptera : Tortricidae) and resistance to new insecticides
Autore:
Waldstein, DE; Reissig, WH;
Indirizzi:
Cornell Univ, New York State Agr Expt Stn, Dept Entomol, Geneva, NY 14456 USA Cornell Univ Geneva NY USA 14456 Stn, Dept Entomol, Geneva, NY 14456 USA
Titolo Testata:
JOURNAL OF ECONOMIC ENTOMOLOGY
fascicolo: 6, volume: 93, anno: 2000,
pagine: 1768 - 1772
SICI:
0022-0493(200012)93:6<1768:SOTIRA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
GROWTH-REGULATORS; MODE;
Keywords:
Choristoneura rosaceana; insecticide resistance; synergist; tebufenozide; spinosad; emamectin benzoate;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Reissig, WH Cornell Univ, New York State Agr Expt Stn, Dept Entomol, Geneva, NY 14456 USA Cornell Univ Geneva NY USA 14456 ntomol, Geneva, NY 14456 USA
Citazione:
D.E. Waldstein e W.H. Reissig, "Synergism of tebufenozide in resistant and susceptible strains of obliquebanded leafroller (Lepidoptera : Tortricidae) and resistance to new insecticides", J ECON ENT, 93(6), 2000, pp. 1768-1772

Abstract

Cross-resistance of the obliquebanded leafroiler, Choristoneura rosaceana (Harris), to tebufenozide was reported from laboratory studies before it had been used in commercial orchards in New York State. Bioassays with obliquebanded leafroller larvae from tebufenozide and organophosphate susceptibleand resistant colonies were conducted with chlorfenapyr, emamectin benzoate, fenoxycarb, fipronil, spinosad, and tebufenozide to determine if cross-resistance was present before these new insecticides were introduced into commercial orchards. Resistance ratios ranged from 1.1 to 3.2 for all insecticides except tebufenozide (12.8). Significant differences between susceptible and resistant colonies were found with emamectin benzoate, fenoxycarb, and fipronil. The effect of the metabolic synergists piperonyl butoxide (PBO) and diethyl maleate (DEM) on tebufenozide toxicity was examined to determine mechanisms for obliquebanded leafroller resistance to tebufenozide and potential mechanisms for other new insecticides. At a concentration of 20 ppm, PBO and DEM significantly synergized the toxicity of tebufenozide in resistant and susceptible colonies (three- to fourfold). Obliquebanded leafrollers may be resistant to new insecticides with distinct modes of action even if these compounds have not been previously used in commercial orchards.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/01/20 alle ore 18:41:55