Rettich_1980_Folia.Parasitol_27_265

Under laboratory conditions the ovicidal effect of synthetic pyrethroid permethrin on eggs of the Culex pipiens molestus Forskal mosquito was not demonstrated. Under field conditions the permethrin doses 0.02--0.75 g/m2 sprayed on the bottom of dried up breeding sites in the inundated forest in the autumn prevented or substantially reduced the occurrence of Aedes cantans (Meigen) larvae in the spring months. Organophosphates fenitrothion and pirimiphos-methyl used in doses 0.04 and 0.16 or 0.15 and 0.5 g/m2 did not prevent the occurrence of A. cantans larvae.