lecture 7 (2)- environmental hazard and health impact (pesticides)

16/10

what is a pest? any organism ________ to humans or human concerns

harmful

what is a pesticide? a substance or mixture thereof intended for preventing, destroying, repelling, or mitigating any ________. also any substance or mixture intended for use as a ________ regulator, defoliant, or desiccant

pest, plant

what are insecticides? pesticide compound specifically used to kill or prevent the growth of ___________

insects

what are herbicides? chemical pesticide designed to control or destroy __________, weeds, or grasses

plants 

what are fungicides? a pesticide that is used to control, deter, or destroy ________

fungi

what are nematocides? chemical agents that are destructive to __________

nematodes

what are rodenticides? chemicals or agents used to destroy rats or other ________ pests, or to prevent them from __________ food, crops, etc. 

rodent, damaging 

what are algaecides? chemicals that can kill and/or slow the growth of _________

algae

what are antimicrobial/disinfectants? chemicals used to control _________ and microbes such as bacteria and viruses

germs

what are the methods for insect control? manually removing, ecological, and _____________ (inorganic _____ very effective, organic more widely used) 

pesticides, not

what was the four pests campaign (1958-1962)? sparrows were thought as a significant threat to grain stores, so people were called upon to _____ sparrows, destroy