Question

Why should preventive measures and biological control methods be preferred for protecting crops?

Answer 1

Preventive measures ensure that the crop plants are protected from the harmful biotic factors such as diseases, weeds and insects and abiotic factors such as drought and salinity.

Answer 2

Answer:

Diseases in plants are caused by pathogens. To get rid of pathogens, some preventive measures and biological control methods are used as they are simple, economic and minimise pollution without affecting the soil quality.