Abstract
The effects of eleven insecticides on the survival of two populations of the melon thrips, Thrips palmi Karny collected from cucumber in October, 2006 and eggplant in February, 2007 in the same greenhouse in Osaka Prefecture were examined using a broad bean leaf dipping method under the laboratory condition. The mortality was high at clothianidin and emamectin benzoate, and was low at spinosad and chlorfenapyr on both cucumber and eggplant populations. The toxicity of most insecticides except thiamethoxiam accorded with the two populations of the thrips.
