Effects of three organophosphorus insecticides in the reproductive potential of Culex quinquefasciatus.
A Culex quinquefasciatus Say 1823 strain with resistant genes to organophosphates was tested in the laboratory to know the reproductive potential after exposure, as larvae, at the LC30 and LC70 (mg/l) of three organophosphorus insecticides: malathion, chlorpyrifos and methyl-pirimiphos. Data showed that fecundity was decreased significantly by malathion at LC30 = 0.0025 and LC70 = 0.0075, whereas fertility has a no significant decrement by chlorpyrifos and methyl-pirimiphos at the LC70 (0.000016, 0.00043). The sexual index was affected by chlorpyrifos and methyl-pirimiphos showing a greater number of adult females.
Departamento de Control de Vectores, Instituto de Medicina Tropical, Pedro Kouri, Ciudad de La Habana, Cuba.
L
L
Aguilera
M C
MC
Marquetti
A
A
Navarro
J
J
Bisset
D000818:Animals; D003462:Cuba; D003465:Culex; D005260:Female; D005298:Fertility / Q000187:drug effects; D007306:Insecticides; D008297:Male; D009032:Mosquito Control / Q000379:methods; D009943:Organophosphorus Compounds
D007306:Insecticides; D009943:Organophosphorus Compounds