insecticide resistance


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insecticide resistance

the ability of a member of an insect population to withstand the toxic effects of an insecticide to the point that it now resists control with that chemical. The genes controlling resistance are thought to be present in low frequencies within a generally susceptible population before application of the chemical. After treatment, susceptible members of the population are removed and the survivors thrive, becoming common in the population which is then described as ‘resistant’.

insecticide

an agent that kills insects. May be applied by pour-on technique, dipping, spraydip, jetting, dusting powders. Insecticides come in a wide variety of chemical compounds. See also pyrethroids, rotenone, derris, chlorinated hydrocarbons, organophosphorus compound, arsenical, carbamates, triazines. The toxicity of an insecticidal preparation may be greatly altered by the agents used as emulsifiers and solvents. Called also pesticide.

insecticide resistance
insects exposed to one insecticide for long periods may develop a resistance to it and suffer no ill-effects when it is applied.
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The present status of insecticide resistance in vector anopheline mosquitoes in Iran.
Insecticide resistance in Australian populations of western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae).
This is a clear indication that the relative increase in bioefficacy of this combination net will vary depending on the level and mechanism(s) of insecticide resistance present in the local mosquito population.
Additional information on insecticide resistance was obtained from web-based reports from the African Network on Vector Resistance (ANVR) (Vector Biology and Control 2008).
The trend was different for the rainy season trial, because the lethality of nets impregnated with Kothrin was consistently lower than that of the dry season trial (Figure 1, panel C), in view of the change in molecular form composition and insecticide resistance status of the vector population (Table 1).
Test procedures for insecticide resistance monitoring in malaria vectors, bioefucacy and persistence of insecticides on treated surfaces.
His current research interests are on insecticide resistance in Anopheles gambiae and identifying alternative insecticides to maintain the effectiveness of insecticide-treated materials in West Africa.
Insecticide resistance is a major global health issue, with 40% of the world's population at risk for malarial diseases carried by Anopheles mosquitoes and these disease vectors showing increasing resistance to DDT.
Maunder speculates the upsurge and continuing problem are caused both by insecticide resistance, and the reorganization of the country's National Health Service.
In order to prevent or retard the development of insecticide resistance, insecticides with different modes of action should be used in rotation as indicated by Insecticide Resistance Action Committee (IRAC 2014).
These variations, and other characteristics such as insecticide resistance and chemosensory abilities, derive from an underlying genetic basis, thus, to address this question requires dissection of genetic determinants of observed diversity in behavioural and physiological responses.
Development of insecticide resistance in malaria vectors to conventionally used insecticides has been a serious impediment experienced by many vector control programmes.