Khapra beetle is a pest of

Khapra beetle (Trogoderma granarium) is a stored grain pest of Wheat, maize, jowar, rice, pulses, oil seeds and their cakes.

• Symptoms:
​Grub damages the grain starting with germ portion, surface scratching and devouring the grain.
It reduces the grain into frass.
Excessive moulting results in loss of market value due to insanitation caused by the cast skin, frass and hair.
Crowding of larvae leads to unhygienic conditions in warehouses.
Damage is confined to peripheral layers of bags in bulk storage.

• Control:
Fumigation with methyl bromide is the most effective treatment.
Powdered neem has been used to control the beetle in wheat stores in India.
Neem powder repels many insects due to its strong odor, but generally does not kill insects.
However, it is still useful in protecting crops from infestations.