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  • Title: [Status of resistance to insecticides in field strains of the Blatella germanica species (Dictyoptera: Blattellidae) from Pinar del Río municipality].
    Author: Díaz C, Enríquez D, Bisset JA.
    Journal: Rev Cubana Med Trop; 2003; 55(3):196-202. PubMed ID: 15849926.
    Abstract:
    A study of the levels of resistance to 10 insecticides: 4 organophosphate compounds (malathion, clorpirifos, methylpyrimifos and diazinon), 2 carbamates (propoxur and bendiocarb) and 4 pyrethroids (cypermethrin, deltamethrin, lamdacyhalothrin and cyfluthrin) was conducted in 5 strains of Blatella germanica (Linnaeus, 1767) collected in the field of Pinar del Rio. 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.
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