Which insect feeds on silk and developing cobs of maize?

A. Spodoptera litura

B. Helicoverpa armigera

C. Mythmina separata

D. Calocoris angustatus

Answer: Option B

Solution(By Examveda Team)

Helicoverpa armigera insect feeds on silk and developing cobs of maize.
Helicoverpa armigera is an emerging pest of maize, especially in sweet corn. Eggs are spherical in shape and creamy-white in colour, laid singly on silk.
There are five or six larval stages. The larva shows colour variation from greenish to brown.