Reference : Efficacy of diatomaceous earth formulations admixed with grain against populations of...
Scientific journals : Article
Life sciences : Entomology & pest control
http://hdl.handle.net/2268/23615
Efficacy of diatomaceous earth formulations admixed with grain against populations of Tribolium castaneum
English
Arnaud, Ludovic [> > > >]
Lan, H. Tran Thi [> > > >]
Brostaux, Yves mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
Haubruge, Eric mailto [Université de Liège - ULg > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech >]
2005
Journal of Stored Products Research
Pergamon Press - An Imprint of Elsevier Science
41
2
121-130
Yes (verified by ORBi)
International
0022-474X
[en] red flour beetle ; control ; wheat
[en] The efficacy of diatomaceous earth (DE) to control stored-products Coleoptera on stored grain was examined against several populations of the red flour beetle, Tribolium castaneum (Herbst). Four commercially available DE formulations were tested: INSECTO(R), Perma-Guard(TM), Protect-It(R) and the diatomite used for the production of Dryacide(R), each at six concentrations (100-1000ppm). A great variation of efficacy was observed among the DE formulations tested. Protect-It at concentrations up to 400 ppm was found to be the most effective formulation to control red flour beetle populations. However, a concentration of 1000 ppm of Protect-It was necessary to control all adults of all populations. Most T castaneum populations, except one from Ivory Coast (Asm), were more than 90% controlled with INSECTO and Dryacide DE at 600 ppm. At this concentration, about 88% and 22% Asm adults died with INSECTO and Dryacide DE, respectively. Perma-Guard was the least efficient DE formulation to control T castaneum adults with three populations exhibiting some survival at 1000 ppm. Reduced susceptibility to DE was observed in two populations, Asm and Lab susceptible from Kansas (Lab-S). As neither population had been previously exposed to DE, it is suggested that red flour beetles may naturally vary in susceptibility to DE. In addition, it was found that some populations can be satisfactorily controlled with some DE formulations but not with others. (C) 2003 Elsevier Ltd. All rights reserved.
CGRI - Commissariat Général aux Relations Internationales ; DGCI - Direction Générale de la Coopération Internationale
http://hdl.handle.net/2268/23615
10.1016/j.jspr.2003.09.004

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