Comparison of the toxicity of organophosphorus acaricides to the mitesSancassania berlesei(Tyroglyphidae) andTetranychus urticae(Tetranychidae)

Publisher Website
Google Scholar
Abstract
Determination of the toxicity of 8 organophosphorus acaricides was made on 2 spp. of mites, S. berlesei and T. urticae. Adult females of the former weigh, on average, 17.2 times more than those of the latter. The relative amounts of the chemical taken up by mites during dosing by the slide dip method were obtained using 14C-parathion-ethyl. S. berlesei was more resistant to organophosphorus acaricides than a susceptible strain of T. urticae. Resistance varied from 2-fold for parathion-ethyl to 1840-fold for mevinphos.