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  1. Pesticides | National Institute of Environmental Health Sciences

    Sep 10, 2025 · Pesticides include herbicides for destroying weeds and other unwanted vegetation, insecticides for controlling a wide variety of insects, fungicides used to prevent the …

  2. Pesticide - Wikipedia

    In general, a pesticide is a chemical or biological agent (such as a virus, bacterium, or fungus) that deters, incapacitates, kills, or otherwise discourages pests.

  3. Pesticides - US EPA

    Dec 31, 2025 · Learn about EPA's recent actions on pesticides. EPA regulates pesticides under broad authority granted in two major statutes, the Federal Insecticide, Fungicide, and …

  4. Pesticide | Definition & Types | Britannica

    Nov 14, 2025 · pesticide, any toxic substance used to kill animals, fungi, or plants that cause economic damage to crop or ornamental plants or are hazardous to the health of domestic …

  5. What Is a Pesticide? Definition, Types, and Their Uses

    Aug 22, 2025 · Pesticides are substances designed to control or eliminate organisms considered pests. These can include a wide variety of living things such as insects, weeds, fungi, and …

  6. What’s Pesticides? – The Institute for Environmental Research and …

    Jun 24, 2025 · Pesticides are broadly classified based on the pests they target. The most common types are insecticides (for insects), herbicides (for weeds), fungicides (for fungi), …

  7. Pesticides - Colorado Department of Agriculture

    CDA's Pesticides Program regulates the distribution and use of pesticides in the state to prevent adverse impacts to the public and the environment. Pesticide Applicator Search.

  8. Chemical safety: Pesticides - World Health Organization (WHO)

    Oct 26, 2020 · Pesticides are chemical compounds that are used to kill pests, including insects, rodents, fungi and unwanted plants (weeds). Over 1000 different pesticides are used around …

  9. What is a Pesticide? – Pesticide Environmental Stewardship

    Pesticides are not just insecticides, herbicides, and fungicides sprayed on crops or pests. If you use insect repellents, ant baits, ‘weed and feed’ lawn products, pet flea collars, sulfur dust on …

  10. The Basics of Pesticides - Gardening Solutions

    Simply put, pesticides are chemicals that are used to manage pests. It’s important to understand that the term “pesticide” is a broad term that can be used to describe a number of specific …