Pesticide resistance

Pesticide Resistance describes the decreasing effectiveness of a previously effective pesticide to pests and the growing resistance of the pest to pesticides. Pesticide resistance usually arises by natural selection: the most resistant individuals a pest population have the greatest reproductive success and pass on their resistance genes to the offspring. This phenomenon is homologous to the development of antimicrobial resistance in pathogenic bacteria.

Even the economically desirable case, the cultivation of resistance of crops or livestock over wide area is used pesticides to include pesticide resistance, such as in the herbicide-resistant soybean. The development of such varieties and species is a research topic of so-called green genetic engineering.

Herbicide resistance

2013, worldwide more than 600 cases of herbicide resistance known. There are two controversial herbicide systems in industrial use, their effectiveness relies on the development of resistant Nutzsorten: Monsanto's Roundup Ready with the active ingredient glyphosate and Bayer's LibertyLink on the basis of glufosinate.

Biocide

An example of a resistant animal pest is the pollen beetle, whose population increases appear pyrethroid - resistant individuals.