The first bioherbicide developed in $1981 $ was based on
Phytophthora palmivora
Phytophthora infestans
Bacillus thurigenesis
Azadirachta indica
Which one of the following is correct?
A commonly used mastigator called 'supari' is obtained from the plant
Free living nitrogen fixing bacteria can bring about saving of nitrogen fertilizer to the tune of
In India, the most commonly used pesticide $BHC$ is
Which one among the following is likely to have the highest levels of $DDT$ depositions in its body