First pesticide used by man is
Rotenone
Pyrethrin
Pheromone
Thuriocide
(a)Rotenone is a natural insecticide which are first used by man.
Which one of the following fungi contains hallucinogens?
Which of the following is the first fungicide
Which is a useful product of epidermal origin?
Disadvantages of chemical agents are
$I.$ chemicals are toxic and harmful to human beings and animals
$II.$ chemicals pollute the environment and plants
$III.$ weedicides used to remove weeds also pollute the soil
Choose the correct option
Which of the following is a commercial blood cholesterol lowering agent?
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