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agriscience

TermDefinition
biennial weed a plant that will live for two years
instars stage between insect molts
noxious weed a plant that causes great harm to other organisms by weakening those around it
vector a living organism that transmits or carries a disease organism
nematodes roundworms that may live in soil or water, within insects, or as parasites of plants or animals.
insect a six legged animal with three body segments
chemical control the use of pesticides to reduce pest populations
metamorphosis the process in which an insect goes from egg to adult
causal agent an organism that produces a disease
perennial weed a plant that can live for more than two years and may reproduce by seeds and/or vegetative growth
hyphae threadlike vegetative structures
diseases disorders vectored by insects or arachnids
disease triangle a term applied to the relationship of the host, pathogen, and the environment in the disease developement
bacteria unicellular microscopic plants
annual weed a plant that completes its life cycle in one year
biological control control by natural agents
pesticide resistance the ability of an organism to tolerate a lethal level of pesticide
cultural control to alter the crop environment to prevent or reduce pest damage
arachnid an eight legged animal, such as a spider or mite
viruses disease causing organisms that are composed of nucleic acids surrounded by protein sheaths
eradication total removal or destruction of a pest
key pest a pest that occurs on a regular basis
quarantine the isolation of pest infested material
fungi plants that lack chlorophyll
pathogens organisms that cause disease
Created by: JeffreyJHood