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Global pestcide rersistance in arthropods
Many pest management scientists believe that pesticide resistance is one of
the principal problems facing crop production, human health, and animal protection.
In our database developed at Michigan State University, we have more
than 7747 cases of resistance with more than 331 insecticide compounds involved.
From the estimated 10,000 arthropod pests, 553 species are reported
with resistance to insecticides. Arthropod competition for food and niche space,
and human and animal health concerns are the principal factors necessitating
pest control. The intensity of pesticide use is linked to selection pressure, and
this genetic selection pressure operating at the population level has repeatedly
resulted in resistance and control failure across all of the common uses of insecticides
and miticides globally.
Insecticide resistance history has demonstrated that control efforts increase
with more stringent health and legal restrictions, as well as market-based quality
or cosmetic standards. These ever-increasing standards result in lower pesticide
treatment thresholds, which in turn lead to increased efforts to limit pest populations
by inevitably increasing pesticide applications. Quite naturally, increased
intensity of pest management leads to greater genetic selection pressure, which
brings on more resistance issues. Some of these operational factors that contribute
to increased selection pressure and resistance development in the global
marketplace include export/import health and phytosanitary standards, and invasive
species eradication projects, as well as global pandemics that threaten
human and animal survival, like avian influenza.
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