1 Department of Terrestrial Ecology, National Environmental Research Institute, Aarhus University, Aarhus University2 Department of Bioscience - Soil Fauna Ecology and Ecotoxicology, Department of Bioscience, Science and Technology, Aarhus University3 Department of Bioscience - Soil Fauna Ecology and Ecotoxicology, Department of Bioscience, Science and Technology, Aarhus University
The acute toxicity of dimethoate was examined on different life stages (larvae, protonymph, deutonymph, male and female) of the predatory mite Hypoaspis aculeifer. The mites were exposed for 7 days in an artificial soil to 0, 2, 4, and 6 mg kg-1. A comparison of LC50 values ranked the sensitivity of the life stages to be: Larvae (LC50 = 3.8) > protonymph (LC50 = 5.3) > male (LC50 = 5.6) > deutonymph (LC50 = 7.1) > female (LC50 = 7.6). A life table response analysis may show how the results affect the population dynamics of H. aculeifer.