Science / Biology / Pesticides: Chemicals that are applied to agricultural crops or domesticated plants and which kill or inhibit growth of insects.
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Persistent Pesticides

Business / Agriculture / Persistent Pesticides: Pesticides that do not readily break down in the environment. Becoming long-lived components of the ecosystem, these chemicals may have enduring effects at low concentrations or may bioaccumulate, pos MORE

Botanical Pesticides

Business / Agriculture / Botanical Pesticides: Pesticides whose active ingredients are plant-produced chemicals such as nicotine, rotenone, or strychnine. Also called plant-derived pesticides. Being 'natural' pesticides, as distinct from synthetic MORE

Restricted-Use Pesticides

Business / Agriculture / Restricted-Use Pesticides: A pesticide may be classified for restricted use if it requires special handling because of its toxicity. These may be applied only by trained, certified applicators or those under their direct superv MORE

Active Ingredient

Business / Agriculture / Active Ingredient: In any pesticide product, the component that kills, or otherwise controls, target pests. Pesticides are regulated by the Environmental Protection Agency primarily on the basis of active ingredients. MORE


Business / Agriculture / Leaching: The process by which chemicals are dissolved and transported through the soil by percolating water. Pesticides and nutrients from fertilizers or manures may leach from fields, areas of spills, or feed MORE