Cochineal insect has been used in checking the wild growth of
Opuntia
Eichhornia
Aphids
Screw worm
A transgenic crop that is resistant to hornworm larvae is
Which of the following is the first fungicide
Green manures are prepared from
Which one among the following is likely to have the highest levels of $DDT$ depositions in its body
Among pesticides zinc phosphide is used for