Journal of Economic Entomology (2002) 95, 425-429

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Frank J. Byrne and Nick C. Toscano (2002)
Evaluation of peracid activated organophosphates in studies of insecticide resistance conferred by insensitive acetylcholinesterases
Journal of Economic Entomology 95 (2), 425-429
Abstract: Peracid activated organophosphorus (OP) insecticides were evaluated against electric eel and a range of insect acetylcholinesterases (AChE). Incubation of chlorpyrifos and sulprofos with meta-chloroperoxybenzoic acid (MCPBA) produced active metabolites capable of distinguishing between AChE enzymes conferring OP susceptibility and resistance in populations of the tobacco whitefly, Bemisia tabaci Gennadius, and the beet armyworm, Spodoptera exigua Hubner. These products were also active against enzymes present in the lygus bug Lygus hesperus Knight and the greenhouse whitefly, Trialeurodes vaporariorum Westwood. Although profenofos was active against electric eel AChE, incubation of the OP with MCPBA did not enhance its anti-AChE properties toward the eel or insect AChEs.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Frank J. Byrne, Nick C. Toscano

Research topic(s) for pests/diseases/weeds:
pesticide resistance of pest


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Spodoptera exigua
Bemisia tabaci
Trialeurodes vaporariorum
Lygus hesperus