As a result of prolonged use of pesticides in the fields, a sharp increase in the number of pests is sometimes observed

As a result of prolonged use of pesticides in the fields, a sharp increase in the number of pests is sometimes observed. Indicate at least three reasons contributing to the increase in their number.

1) Long-term use of pesticides leads to the death of predators that feed on these insects, since a high concentration of pesticides accumulates at the end of the food chain.
2) Exposure to pesticides leads to the survival of individuals on which the poison does not act, therefore they will survive and give offspring in which they are not susceptible to poison.
3) Insects that have become resistant to the pesticide are in very good conditions (plenty of food, lack of competitors and predators), so there is a sharp increase in their numbers.

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