However, grain beetles can lay up to 300 eggs every year, with larvae then taking two months to develop into adults.

Depending on the incubation temperature, a female beetle can lay up to 500 eggs a few days after mating.

Depending on the incubation temperature, a female beetle can lay up to 500 eggs a few days after mating.

For this reason, this Pest Alert addresses stored product pests under the term “grain beetle”.

The female grain beetle lays from 45 to 285 eggs per year, either singly or in small batches.

Since an adult grain beetle can live up to three years under ideal conditions,an infestation can number in the hundreds of thousands.

Sawtoothed grain beetles render large amounts of food inconsumable, potentially causing significant economic losses to businesses.

The pea protein-rich extract was found to be toxic against the lesser grain borer, red flour beetle, rice weevil, maize weevil, granary weevil and the rusty grain beetle.

There are numerous other stored product pests that closely resemble the sawtoothed grain beetle and whose life history and habitat are very similar.

Beetles have poorly developed wings and some species are unable to fly, although the rusty grain beetle and the red flour beetle can fly well.

Beetles have poorly developed wings and some species are unable to fly, although the rusty grain beetle and the red flour beetle can fly well.

The saw-toothed grain beetle’s small size allows it to easily hide in crevices, making detection difficult to the untrained eye, whilst also allowing it to penetrate packaged food products.