Abstract

DIAZ, Cristina; ENRIQUEZ, Dagoberto  and  BISSET, Juan A.. Estado de la resistencia a insecticidas en cepas de terreno de la especie Blattella germanica (Dictyoptera: Blattellidae) procedentes del municipio Pinar del Río. Rev Cubana Med Trop [online]. 2003, vol.55, n.3, pp.196-202. ISSN 0375-0760.

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.

Keywords : INSECTICIDE RESISTANCE; COCKROACHES; INSECT CONTROL; INSECTICIDES, CARBAMATE; INSECTICIDES, ORGANOPHOSPHATE.

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