Learn More about Merchant Grain Beetles

Merchant grain beetle


Merchant grain beetles are typically not found in grain products, but instead like to attack cereals, cake mixes, macaroni, cookies and chocolate.

Merchant grain beetles are dark brown and have six saw-like teeth on each side of their bodies. They can grow to be one-eighth of an inch long and have very flat bodies.

Colour: Brown

Legs: Six

Shape: Narrow oval

Size: 1/10 inch

Antennae: Yes

Flying: Can fly and are drawn to light


The merchant grain beetle's body shape allows it to crawl into packaging to eat, live and place eggs.


Merchant grain beetles are found in pantries or in food processing areas or warehouses.


Merchant grain beetles can infest stored food products and can contaminate food.


Discard infested packages. Clean spilled grain and food sources.

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