pesticide
Any chemical designed to kill or inhibit the growth of an organism that people consider undesirable. See fungicide, herbicide, insecticide.
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Chapter 20 - Pesticides and Pest Control
pest
Unwanted organism that directly or indirectly interferes with human activities.
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persistence
How long a pollutant stays in the air, water, soil, or body. See also inertia.
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integrated pest management (IPM)
Combined use of biological, chemical, and cultivation methods in proper sequence and timing to keep the size of a pest population below the size that causes economically unacceptable loss of a crop or livestock animal.
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insecticide
Chemical that kills insects.
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herbicide
Chemical that kills a plant or inhibits its growth.
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Genetic engineering
Insertion of an alien gene into an organism to give it a new and usually beneficial genetic trait. Compare artificial selection, natural selection.
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fungicide
Chemical that kills fungi.
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fungi
Eukaryotic, mostly multicellular organisms such as mushrooms, molds, and yeasts. As decomposers, they get the nutrients they need by secreting enzymes that speed up the breakdown of organic matter in the tissue of other living or dead organisms. Then they absorb the resulting nutrients.
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Economic threshold
Point at which the economic loss caused by pest damage outweighs the cost of applying a pesticide.
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