biocide
	A broad-spectrum poison that kills a wide range of organisms.
biological controls
	Use of natural predators, pathogens, or competitors to regulate pest populations.
biological pests
	Organisms that reduce the availability, quality, or value of resources useful to humans.
Delaney Clause
	A controversial amendment to the Federal Food, Drug, and Cosmetic Act, added in 1958, prohibiting the addition of any known cancer-causing agent to processed foods, drugs, or cosmetics.
economic thresholds
	In pest management, the point at which the cost of pest damage exceeds the costs of pest control.
fungicide
	A chemical that kills fungi.
herbicide
	A chemical that kills plants.
insecticide
	A chemical that kills insects.
integrated pest management (IPM)
	IPM is an ecologically based pest-control strategy that relies on natural mortality factors, such as natural enemies, weather, cultural control methods, and carefully applied doses of pesticides.
pesticide
	Any chemical that kills, controls, drives away, or modifies the behavior of a pest.
pesticide rain
	Long-range transport of pesticides by air currents and deposition through precipitation in sites far from its origin; analogous to acid rain.
pesticide treadmill
	A need for constantly increasing doses or new pesticides to prevent pest resurgence.
pest resurgence
	Rebound of pest populations due to acquired resistance to chemicals and nonspecific destruction of natural predators and competitors by broadscale pesticides.

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