One of the major difficulties in the biological control of insect pest – McqOptions

MCQOPTIONS

1.	One of the major difficulties in the biological control of insect pests is that [CBSE PMT 1995]
A.	The predator develops a preference to other diets and may itself become a pest
B.	The predator does not always survive when transferred to a new environment
C.	The method is less effective as compared with the use of insecticides
D.	The practical difficulty of introducing the predator to specific areas
Answer» B. The predator does not always survive when transferred to a new environment

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