Nuclear polyhedrosis virus (NPV) is the most effective for control of

A. Diacrasia obliqua

B. Pectionophora gossypiella

C. Helicoverpa armigera

D. None of these

Answer: Option C

Solution(By Examveda Team)

Nuclear polyhedrosis virus (NPV) is the most effective for the control of Helicoverpa armigera.
NPV is the preferred product for Helicoverpa management, not only because it is effective but because it preserves the full range of beneficial insects in the crop.
The nuclear polyhedrosis virus (NPV), part of the family of baculoviruses, is a virus affecting insects, predominantly moths and butterflies. It has been used as a pesticide.