*NONHOST = An organism not hurt by a specific disease or parasite, e.g., head lice don’t feed on dogs
*ANTIBIOTIC = A substance that kills or suppresses microorganism, e.g., penicillin
*ACTION THRESHOLD = Number of pests where action should be taken to prevent noticeable problems
*ENTOMOLOGY = The study of insects
*PLANT PATHOLOGY = The study of plant diseases
*WEED SCIENCE = The study of weeds
*ATTRACTANT = A substance that draws a specific type of insect or other organism to it
*SUPPRESS = To lower the level of a pest population
*NOXIOUS WEED = An weed that is especially troublesome or hard to control
*INVASIVE SPECIES = A living organism that enters a new environment and spreads quickly

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