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Resistance to cyfluthrin and tetrachlorvinphos in the lesser mealworm, Alphitobius diaperinus , collected from the eastern United States
Author(s) -
Hamm Ronda L,
Kaufman Phillip E,
Reasor Colleen A,
Rutz Donald A,
Scott Jeffrey G
Publication year - 2006
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.1230
Subject(s) - mealworm , cyfluthrin , biology , toxicology , pesticide , ecology , pyrethroid , larva
The lesser mealworm, Alphitobius diaperinus (Panzer), is an important pest in poultry facilities. The toxicity of cyfluthrin and tetrachlorvinphos to five strains of the lesser mealworm was compared with the toxicity to a susceptible laboratory strain. Bioassays were carried out with both larvae and adults. For the susceptible strain, cyfluthrin and tetrachlorvinphos had similar toxicity to adults, but cyfluthrin was 5 times more toxic to larvae when compared with tetrachlorvinphos. High levels of resistance to tetrachlorvinphos in two beetle strains were detected in both larvae and adults, although these strains were heterogeneous and still contained susceptible individuals. Resistance to cyfluthrin ranged from 1.7‐ to 9.5‐fold for adults and from 0.5‐ to 29‐fold for larvae at the LC 95 . Overall, the patterns of resistance did not mirror the insecticide use patterns reported at these facilities. The implications of these results to management of the lesser mealworms are discussed. Copyright © 2006 Society of Chemical Industry