Pest Management Science (2011) 67, 446-457

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Jitka Stará, Václav Stejskal, Marta Nesvorná, Jan Plachy and Jan Hubert (2011)
Efficacy of selected pesticides against synanthropic mites under laboratory assay
Pest Management Science 67 (4), 446-457
Abstract: BACKGROUND: The efficacies of organophosphate pesticides, single-compound versus multicompound pyrethroid formulations and relatively novel unclassified insecticides/acaricides were compared to find the lowest dosage and highest efficacy for the control of Dermatophagoides farinae (Hughes), D. pteronyssinus (Trouessart) and Tyrophagus putrescentiae (Schrank). Formulated active ingredients (AIs) were diluted in water and applied onto filter paper in experimental chambers with ten unsexed adult mites in six replicates. Mite mortality was checked after 24 h. The security index (SI) was calculated for all of the AIs by dividing the recommended rate by the LD90 determined for each species.
RESULTS: The tested organophosphates had high LD90 and low SI values. The single-compound pyrethroids were ineffective (deltamethrin and beta-cyfluthrin) or had high LD90 and low SI values (cyphenothrin, permethrin, pyrethrum and bifenthrin). The multicompound miticides had low LD90 and high SI values which increased from deltamethrin/S-bioallethrin to permethrin/S-bioallethrin/piperonyl butoxide to permethrin/pyriproxyfen/benzyl benzoate. Abamectin, pyridaben, propargite and flufenoxuron were highly active against Dermatophagoides spp. Neem (Acarosan duo) was highly active against all mite species tested.
CONCLUSION: The available formulations of multicompound pyrethroids (permethrin/S-bioallethrin/piperonyl butoxide, permethrin/pyriproxyfen/benzyl benzoate), benzyl benzoate, neem and some field acaricides are effective in suppression of synanthropic mites in laboratory assays. Their LD90 are lower than those of traditionally used organophosphates or single-compound pyrethroid formulations.
(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): Jan Hubert, Vaclav Stejskal, Jitka Stara

Research topic(s) for pests/diseases/weeds:
control - general


Pest and/or beneficial records:

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


Dermatophagoides farinae
Dermatophagoides pteronyssinus
Tyrophagus putrescentiae