Mode of pesticide action is similar in
$DDT$ and parathion
Organochlorines and organophosphates
Organochlorines and carbamates
None
Major drawback of $DDT$ as a pesticide is that
Which of the following pesticides have been successfully used in the control of locusts and grasshoppers in India
Protein in silk thread is
Pesticides with very low biodegradation but strong affinity for fatty tissues are
Which of the following crops have been brought to India from New world?