V P Sergieva

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Authors characterize 7 mosquito strains and species from the collection of the E. I. Martsinovskiĭ Inst. with regard to the levels and mechanisms of their resistance to malathion and DDT. Resistance mechanisms of the strains An. stephensi, An. sacharovi, An. atroparvus, Ae. aegypti and C. pipiens were determined with the help of synergists.(More)
Levels of An. martinius natural population resistance to DDT and malathion were determined in the Kirghiz SSR by a generally accepted WHO method. 100% sensitivity of mosquitoes to malathion and limited DDT-resistance (mean death rate, 59.1%) were revealed. Age-related differences in DDT-resistance level were established. Mosquitoes at the day of imago(More)
The effect of age on the level of resistance to DDT was studied on laboratory mosquito strains of An. sacharovi, An. atroparvus, Ae. aegypti, C. p. molestus. The highest resistance level was observed in juvenile mosquitos 0-1 days after flying out. The trend towards the increase in sensitivity with age common for all mosquito species is revealed.
The mechanisms of DDT, permethrin and malathion resistance were determined indirectly by means of synergists inhibiting the detoxification enzymes. It was found that metabolic resistance dependent on glutathione-S-transferase, MFO and carboxylesterase is the most liable to age changes. Such changes are less expressive in mosquitos which have supposedly(More)
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