Pesticide

A pesticide is a chemical, or sometimes biological agent such as a virus or bacteria, used to control, to repel, to attract, or to kill pests, which are organisms, including insects, weeds, birds, mammals, fish, and microbes, that compete with humans for food, destroy property, spread disease, or are considered a nuisance. Pesticides are usually, but not always, poisonous to humans.

Related Topics:
Chemical - Pest - Insect - Weed - Bird - Mammal - Fish - Microbe - Poison

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