Pesticides Questions and Correct Answers/ Latest Update / Already Graded

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Pesticides Questions and Correct Answers/ Latest
Update / Already Graded
Pesticide

Ans: a pesticide that kills a variety of organisms, not just the targeted organisms
to kill pests


All insecticides are pesticides but

Ans: but not all pesticides are insecticides


fungus pesticide

Ans: fungicide


mice/rat pesticide

Ans: rodenticide


plant/weed pesticide

Ans: herbicide


"Silent Spring"

Ans: by Rachel Carson
about contamination of environment-insecticides that would kill all the birds
brought about awareness of environmental issues (mainly about DDT)


2 kinds of insecticides

Ans: natural (botanicals) & synthetic




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examples of natural insecticides

Ans: nicotine, pyrethrine (extract of a mum flower that paralyzes insect),
rotenone (legune from India)


Types of synthetic insecticides

Ans: 1. Organochlorine (chlorinated hydrocarbons)
2. organophosphorus
3. Carbamates


What gives the synthetic insecticide it's toxicity

Ans: the element i.e. chlorine, phosphorus, nitrogen...


1st generation pesticide

Ans: inorganic compounds and botanicals i.e. lead, mercury, nicotine and
pyrethrine


2nd generation pesticide

Ans: synthetic poison i.e. DDT


Major Benefit of Pesticides

Ans: Crop Protection
oests eat and destroy 1/3 of world's crops
farmers save $3-$5 for every $1 they invest in pesticides


Chlorinated Hydrocarbons




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