[Behavior of Anopheles mosquitoes in contact with insecticides].

The rate of irritability and "aggressiveness" (attacking activity) at the contact with DDT was determined for all main potential vectors of malaria in the USSR. Great species differences were found out. Changes in the irritability and "aggressiveness" rates with growth of resistance to DDT were traced. The knowledge of resistance rate, initial data on the irritability and "aggressiveness" of each species and the main trends in the changes in mosquitoes behaviour under the effect of DDT makes it possible to predict the effectiveness of DDT in concrete situations. The results of visual observations on the behaviour of malaria vectors in dwelling treated with malathion and propocsur, substitutes for DDT in control on resistant populations, are given.