Weevils in Rice, Wheat and Pulses: Prevention and Removal

Tiny dark beetles in rice or wheat are probably weevils.

The short answer

Weevils lay eggs inside grains, and larvae develop within them, so infestations can start before you buy. Buy fresh stock, store in airtight containers, keep storage cool and dry, clean containers before refilling and inspect regularly. Discard heavily infested grain, and freeze or sun-dry small amounts to remove pests if mildly affected.

Prevent

1. Buy from clean, busy stores.
2. Use airtight containers.
3. Keep grain dry and cool.
4. Clean containers before refilling.
5. Don't mix old and new stock.

Remove

• Discard heavily infested grain.
• Freeze small amounts for several days.
• Sieve and clean mildly affected grain.
• Clean the storage area.

When to call a professional

If the problem is widespread, keeps returning or you are unsure what you are dealing with, a professional inspection will save time and avoid wasted effort.

Frequently asked questions

Are weevils harmful?

Not poisonous but unhygienic.

Do bay leaves help?

Little proof.

Can I wash infested rice?

It removes some insects but not hidden larvae.

Why do they return?

Hidden eggs in old stock or containers.

This guide is part of IPest's complete resource on pantry and fabric pest control. For identification help, prevention and treatment options, see our full pantry and fabric pest control guide for Bangalore.