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Baseline responses of Alphitobius diaperinus (Coleoptera: Tenebrionidae) to spinosad, and susceptibility of broiler populations in eastern and southern Australia

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Lambkin, T.A. and Rice, S.J. (2007) Baseline responses of Alphitobius diaperinus (Coleoptera: Tenebrionidae) to spinosad, and susceptibility of broiler populations in eastern and southern Australia. Journal of Economic Entomology, 100 (4). pp. 1423-1427.

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Article Link: http://dx.doi.org/10.1603/0022-0493(2007)100[1423:...

Publisher URL: http://www.bioone.org

Abstract

Spinosad was proposed as a potential chemical for control of lesser mealworm, Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae), in Australian broiler houses after the detection of strong cyfluthrin resistance in many beetle populations. In 2004-2006, spinosad susceptibility of 13 beetle populations from eastern and southern Australian broiler houses and a cyfluthrin/fenitrothion-resistant reference population was determined using topical application, and was compared with the susceptibility of an insecticide-susceptible reference population. Comparisons of dose-response curves and baseline data showed that all populations, including the insecticide-susceptible population, were roughly equivalent in their response to spinosad, indicating no preexisting spinosad resistance. Two field populations, including the resistant reference population, which had confirmed cyfluthrin/fenitrothion- resistance, showed no cross-resistance to spinosad. There was no significant correlation between beetle weight and LC99.9. A discriminating concentration of 3% spinosad was set to separate resistant and susceptible individuals. Considering the levels of spinosad resistance that have been recorded in other insect pests, the sustained future usefulness of spinosad as a broiler house treatment will rely on effective integrated beetle management programs combined with carefully planned chemical use strategies.

Item Type:Article
Corporate Creators:Animal Science
Keywords:Broiler house; darkling beetle; insecticide resistance; lesser mealworm.
Subjects:Science > Zoology > Invertebrates > Insects
Veterinary medicine > Diseases of special classes of animals > Avian
Live Archive:02 Feb 2009 07:14
Last Modified:03 Sep 2021 16:47

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