Insect pests can be controlled by the use of :

(a) Insecticide

(b) Pheromones

(d) Nitrophosphate

A (a) only

B (a) and (b) only

C (a), (b) and (c) only

D (a), (b), (c) and (d)

Answer & Explanation
Answer:(a), (b) and (c) only

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