Question

why should preventive measures and biological control method be preferred for protecting crop​

Answer 1

Answer:

yeah.....here's your answer!

Explanation:

Controlling biologically helps the crops in great way than by using pesticides or insecticides it is because biological controlling includes some manure or any useful bacteria etc.they do not harm plants in any way in same way they do not kill the useful bacteria present in the plant which helps the plant and it also do not cause any type of infertility or pollution to the crop.Hence biological controlling is preferred for protecting crops.

Hope it is helpful

Answer 2

is mostly used before The grain are stored for future it can be done proper drawing Insan the use of criminal like pesticides insecticides cause pollution