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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Evolution of pesticide resistance has been identified worldwide as the most serious threat to the development of sustainable integrated pest management practices (Labbe et al.
With the growing problem of pesticide resistance, new methods of eradicating bedbug infestations are needed.
Modern biotechnology began in the early 1970s, with the discovery of recombinant deoxyribonucleic acid (rDNA) technology, and was designed to introduce beneficial genetic traits, such as pesticide resistance, and add nutritional value.
Having said that, there's no doubt that some pesticide resistance will develop.
In addition to being a safety issue, the overuse of chemicals can lead to pesticide resistance and/or increase a pest problem instead of eliminating it.
Canola has been the subject of both kinds of modification, first to lower erucic acid levels and then to increase pesticide resistance.
The genetic modification of cotton is set to reach far beyond the realm of pesticide resistance.
All of these ingredients were selected for their ability to deplete adenosine triphosphate (ATP) levels and, thus, prevent ATP-dependent pesticide resistance.
Tabashnik (1986) inferred that where chemicals are used in agricultural systems, natural enemies have the ability to develop pesticide resistance if provided an adequate supply of prey that have ingested pesticides.
Cook, the Washington State University biologist, points out that crop scientists could handle growing pesticide resistance the same way they deal with resistance to infectious rusts in grains: Using conventional breeding techniques, they stack genes for resistance to a wide variety of evolving rusts.
Many genetically engineered crops contain built-in pesticide resistance and will very likely perpetuate the use of toxic chemicals.
Dr Guy Poppy, who led the research team, said the results indicate that pesticide resistance will be less of a problem with GM crops because they still enable beneficial insects, such as the wasps, to survive.

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