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The wheat weevil (Sitophilus granarius), also known as the grain weevil or granary weevil, is an insect that feeds on cereal grains, and is a common pest in many places. It can cause significant damage to harvested stored grains and may drastically decrease crop yields. The females lay many eggs and the larvae eat the inside of the grain kernels.
Oryzaephilus surinamensis, the sawtoothed grain beetle, [1] is a beetle in the superfamily Cucujoidea. [2] It is a common, worldwide pest of grain and grain products as well as chocolate, drugs, and tobacco. [2] The species' binomial name, meaning "rice-lover from Suriname," was coined by Carl Linnaeus, who received specimens of the beetle from ...
Primary grain pests attack the whole grain. The eggs are laid inside the grain, before the larvae mature inside the grain and then chew their way out. Some of these pests include the Lesser grain borer, Granary weevil ( Sitophilus granarius , the Wheat weevil ) and Rice weevil ( Sitophilus oryzae ).
They are the most common grain and stored product pest in the United States. They are very active and tend to crawl rapidly while searching for food. [4] They are small insects, reaching a length of about 1 ⁄ 8 of an inch. Their name originates from their distinguishable, sawtooth-like projections found on each side of the thorax.
Scott Smith/Getty Images. How to Identify Them: At the risk of stating the obvious, mosquitoes are long, slender flying insects with long, thin legs and needle-like mouthparts—and while the size ...
An adult emerges from inside a grain of rice. Adult rice weevils are able to fly, [6] and can live for up to two years. Females lay 2–6 eggs per day and up to 300 over their lifetime. The female uses strong mandibles to chew a hole into a grain kernel after which she deposits a single egg within the hole, sealing it with secretions from her ...
An Asian lady beetle settles on a living room lamp in this 2003 file photo. This version can pinch and spray as it searches for a safe place to spend the winter.
Oryzaephilus mercator, the merchant grain beetle, is a small, flattened beetle about 2.5mm in length. [1] It is a common, worldwide pest of grain and grain products as well as fruit, chocolate, drugs, and tobacco. [1] The biology of O. mercator is nearly identical with Oryzaephilus surinamensis (the sawtooth grain beetle). [1]