| evaluation of permethrin-impregnated mosquito-nets against mosquitoes in china. | in yishan county, guangxi province, china, where malaria and brugian filariasis are transmitted by vectors belonging to the anopheles hyrcanus pallas group, a study was conducted from june to november 1986 to evaluate the effectiveness of permethrin-impregnated mosquito bednets to reduce man/vector contact. in three experimental villages a total of 246 mosquito nets were treated with permethrin ec at a dosage of 0.5 g/m2. control bioassays (1 h exposure) of treated nets gave up to 100% mortality ... | 1988 | 2908784 |