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Rev. cuba. med. trop ; 55(3): 196-202, sep.-dic. 2003.
Article in Spanish | LILACS | ID: lil-629319

ABSTRACT

Se realizó un estudio de los niveles de resistencia a 10 insecticidas: 4 compuestos organofosforados (malation, clorpirifos, pirimifos metil y diazinon), 2 carbamatos (propoxur y bendiocarb) y 4 piretroides (cipermetrina, deltametrina, lambdacialotrina y ciflutrina) en 5 cepas de Blattella germanica (Linnaeus, 1767) colectadas en el terreno, procedentes de la ciudad de Pinar del Río. Se detectaron altos niveles de resistencia a los insecticidas: bendiocarb, cipermetrina y deltametrina; bajo nivel de resistencia a diazinon; moderada a alta a pirimifos metil; así como, susceptibilidad a un insecticida de cada grupo en estudio: clorpirifos (organofosforado), propoxur (carbamato) y ciflutrina (piretroide). Solo una cepa presentó baja resistencia a malation (Inicio Carlos Manuel) y a lambdacialotrina (Consejo Celso Maragoto). Se evidenció resistencia cruzada cipermetrina-deltametrina, que no afectó la susceptibilidad a los piretroides lambdacialotrina y ciflutrina.


A study of the levels of resistance to 10 insecticides: 4 organophosphate compounds (malathion, clorpirifos, methyl-pyrimifos and diazinon), 2 carbamates (propoxur and bendiocarb) and 4 pyrethroids (cypermethrin, deltamethrin, lamda-cyhalothrin and cyfluthrin) was conducted in 5 strains of Blatella germanica (Linnaeus, 1767) collected in the field of Pinar del Río. High levels of resistance to bediocarb, cypermethrin and deltamethrin insecticides; low level of resistance to diazinon; from moderate to high resistance to methyl-pyrimifos, as well as susceptibility to one insecticide in each study group: clorpirifos (organophosphate), propoxur (carbamate) and cyfluthrin (pyrethroid); were detected. Only a strain presented low resistance to malathion (Inicio Carlos Manuel) and to lambda-cyhalothrin (Consejo Celso Maragoto). Cypermethrin-deltamethrin cross resistance was evidenced. It did not affect the susceptibility to lambda-cyalothrin and cyfluthrin.


Subject(s)
Animals , Carbamates , Cockroaches , Organophosphorus Compounds , Pyrethrins , Cuba , Insecticide Resistance
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