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Pesticide resistance is increasing. Farmers in the US lost 7% of their crops to pests in the 1940s; over the 1980s and 1990s, the loss was 13%, even though more pesticides were being used. [1] Over 500 species of pests have evolved a resistance to a pesticide. [4] Other sources estimate the number to be around 1,000 species since 1945. [5]
With new biopesticide technologies comes the concern that pests will rapidly develop resistance to natural insecticides, because plant pesticides tend to produce the pesticidal active ingredient throughout a growing season, increasing the selection pressure upon both the target pests and any other susceptible insects feeding on the transformed ...
Common solutions include constant breeding for disease resistance, use of pesticides, use of border inspections and plant import restrictions, maintenance of significant genetic diversity within the crop gene pool (see crop diversity), and constant surveillance to accelerate initiation of appropriate responses. Some pathogen species have much ...
Research into ISR is driven largely by a response to pesticide use including 1) Increasing resistance by pathogens to pesticides, 2) the necessity to remove some of the more toxic pesticides from the market, 3) health and environment problems caused as an effect of pesticide use, and 4) the inability of certain pesticides to control some pathogens.
This requirement applies to all conventional pesticides and is meant to provide end-users with guidance on managing pesticide resistance. [80] An example of a fully executed label compliant with the USEPA resistance management labeling guidance can be seen on the specimen label for the herbicide, cloransulam-methyl, updated in 2022.
Pests can develop a resistance to the pesticide (pesticide resistance), necessitating a new pesticide. Alternatively a greater dose of the pesticide can be used to counteract the resistance, although this will cause a worsening of the ambient pollution problem.
New tests done by the Environmental Working Group have found 21 oat-based cereals and snack bars popular amongst children to have "troubling levels of glyphosate." The chemical, which is the ...
A weed that develops resistance to one herbicide typically has resistance to other herbicides with the same mode of action (MoA), so herbicides with different MoAs, or different resistance groups, are needed. Preventative weed resistance management rotates herbicide types to prevent selective breeding of resistance to the same mode of action.