Combating corn beetles

Corn beetles in your pantry? ✅ Control corn beetles, grain beetles, and rice weevils naturally and sustainably with GREEN GUARDIA grain beetle extract – completely chemical-free.

1. General information about corn beetles

The European corn weevil (Sitophilus zeamais) is one of the most dangerous stored product pests , primarily attacking corn, grain, rice, and other grain products . The females lay their eggs directly inside the grains. The larvae develop hidden inside, where they hollow out the stored product from within.

An infestation often goes unnoticed for a long time, as the beetles only appear when they hatch from the grain. By then, the larvae have already caused extensive damage: grains become hollow, crumbly, and no longer edible.

2. Detecting corn beetle infestation – typical signs

Typical signs of a corn beetle infestation are:

  • Small round holes in corn kernels or grains (exit holes of the beetles)
  • Powdery residues and crumbs between the grains
  • Shrunken or hollow grains that are hollowed out inside
  • Small beetles (2–4 mm in size) , brown to black, that appear in storage containers or pantries
  • Sudden, severe infestation of cereal products
Recommended product

With the sticky traps you can specifically capture bread beetles and reliably monitor the affected areas.

  • Easy to use: The traps are quickly ready for use and can be easily placed in the kitchen, pantry or other affected areas.
  • Safe & odorless: Completely free of chemical additives and completely odorless – ideal for use near food.
  • Long-lasting: Provides reliable support in monitoring and catching bread beetles over several weeks.

Bread beetle trap with special attractant Bread beetle trap with special attractant
Bread beetle trap with special attractant
From €8,90
€2,97 /item

3. Preventing corn weevils – Tips for protecting stored products

To prevent corn beetles from nesting in the first place, these measures will help:

  • Store supplies in a cool, dry place – warmth and moisture promote the development of beetles
  • Store cereal products airtight – preferably in screw-top jars or metal boxes
  • Freeze newly purchased grains – at least 48 hours to kill any larvae or eggs
  • Check supplies regularly – and dispose of them immediately if infested
  • Cleanliness in the pantry and storage room – remove food residue and dust immediately
Recommended product

With the storage wasps, you are relying on natural beneficial insects that specifically control corn beetles in the storage area and thus support the sustainable protection of your food.

  • Easy to use: The tubes containing the beneficial organisms are easily placed in the affected storage areas.
  • Natural & harmless: Garlic wasps are tiny, beneficial insects from nature – completely chemical-free and completely harmless to humans and pets.
  • Sustainable effect: Supports reliable control of bread beetles and other insects over several weeks.
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Storage wasps against bread beetles, rice beetles & Co. Storage wasps against bread beetles, rice beetles & Co.
Storage wasps against bread beetles, rice beetles & Co.
From €34,90
€34,90 /item

4. GREEN GUARDIA products against corn weevils

GREEN GUARDIA Wood Wasps against Corn Weevils

Our storage wasps are tiny beneficial insects that specifically target the larvae of stored product pests such as corn weevils, grain weevils, and rice weevils . The storage wasps lay their eggs directly inside the beetle larvae, preventing them from developing further.

Advantages:

  • 100% natural and chemical-free method
  • Effective against corn weevils and other stored product pests
  • No residues on food
  • Safe for humans, pets and the environment

👉 With the GREEN GUARDIA storage wasps you protect your supplies effectively and sustainably from corn beetles and restore the biological balance in the storage facility.

✅ Conclusion: The corn weevil can cause significant damage to stored food. With consistent prevention and the targeted use of GREEN GUARDIA storage wasps, corn weevils and other stored food pests can be controlled naturally, safely, and permanently .