Insecticide Resistance and Vector Control

Sequence variation in the cadherin gene of Ostrinia nubilalis: a tool for field monitoring

“…Molecular screening may detect geographic regions of increased insecticide resistance levels and are increasingly being incorporated into resistance diagnostics (Brogdon and McAllister, 1998). Molecular assays have been developed to detect resistance genes in insect populations (Steichen and Ffrench-Constant, 1994;Field et al, 1996), and screening known resistance alleles in P. gossypiella may show promise for population surveillance (Morin et al, 2003;Tabashnik et al, 2004).…”

Modulation ofAnopheles gambiaeEpsilon glutathione transferase activity by plant natural productsin vitro

“…Work on insect GSTs was initially motivated by their possible involvement in insecticide resistance. Elevated GST activity has been detected in strains of insects that are resistant to organophosphates and organochlorines [4,9]. Insect GSTs have been classified into six classes: d, 1, s, u, v, and j [11].…”

“…Anopheles gambiae is often the predominant vector during the wet season, when malaria is at its peak, whilst its sibling species A. arabiensis is better adapted to less humid environments, and is often the predominant or only member of the complex in the arid regions of West Africa, Ethiopia and Sudan. The problems of Plasmodium species resistance to antimalarial drugs and the spread of insecticide-resistance in Anopheles species have prompted the search for alternative, sustainable methodologies to control malaria [4].…”

Resistencia metabólica a insecticidas organofosforados en Anopheles aquasalis Curry 1932, municipio Libertador, estado Sucre, Venezuela

“…Aunque los mecanismos por los cuales los insecticidas llegan a ser menos efectivos son similares en todas las especies de vectores, cada problema de resistencia es potencialmente único y puede involucrar patrones complejos de resistencia focal (3).…”