Ques. One of the major difficulties in the biological control of insect pest is that
A. the method is less effective as compared with the use of insecticides
B. the practical difficulty of introducing the predator to specific areas
C. the predator develops a preference to other diets and may itself become a pest
D. the predator does not always survive when transferred to a new environment.
Answer:D
Ques. One of the major difficulties in the biological control of insect pest is that
A. the method is less effective as compared with the use of insecticides B. the practical difficulty of introducing the predator to specific areas C. the predator develops a preference to other diets and may itself become a pest D. the predator does not always survive when transferred to a new environment.