Question

Insect pests whose grubs bore into the grain to feed on them, heavy infestation of those pests results in powdery mass of grain while adult scrap surface of grain.

Q: Answer-Insect pests whose grubs bore into the grain to feed on them, heavy infestation of those pests resul...

Lesser grain borerHooded grain borerpaddy borer beetle Rhyzopertha dominica Host range Paddy, rice, wheat, maize. Symptoms of damage Grubs and adults cause damage and are voracious feeders. Adults reduce the grain kernels to mere frass. Grubs eat their way into the grain or feed on the grain dust and are capable of attacking grain externally.