J. P. Santos

TL;DR: It was possible to show that both compounds are insecticidal against the two insects, mainly in the contact and/or ingestion action.

TL;DR: Results from insecticide bioassays with synergists suggested a major involvement of esterase as the cypermethrin resistance mechanism, while no clear result was obtained for chlorpyrifos-methyl, which provides support for target site resistance to pyrethroids in the DDT and pyrethroid resistant population used in this study.

TL;DR: With these tests, a cross-resistant spectrum to DDT and pyrethroids was verified in six populations of S. zeamais, and one population showed resistance only toDDT and deltamethrin, while three other populations showed resistanceonly to DDt.

TL;DR: Insecticide‐impregnated paper assays were used to analyse the inheritance of Deltamethrin resistance in a DDT‐pyrethroid cross‐resistant strain of maize weevil, Sitophilus zeamais Mots, from Brazil and provided evidence that a single gene was responsible for resistance.

TL;DR: Este trabalho objetivou conhecer o efeito do dano do gorgulho e da traca nas fases de ovo, larvas e adulto, sobre a germinacao.