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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 ...
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]
Oryzaephilus is a genus of beetles in the family Silvanidae, containing 16 species: [1] Oryzaephilus abeillei Guillebeau; Oryzaephilus acuminatus Halstead;
A periodic check of susceptible foodstuffs is necessary, especially in summer months when most insects are more active. In the event an infestation is discovered, steps must be taken to eradicate the insects. Controlling an infestation is a lengthy process and insects may still be seen, albeit in dwindling numbers, for several weeks.
The larvae feed on the roots, which is the cause of yield reduction in rice. The loss of roots, reduces the number of plant tillers, which are the panicle bearing structures of the rice plant. Reduction in tillering leads directly to yield loss. In case of strong infestations yield losses can reach 30%.
Both adult and grub feed on a milled product and can exist as a secondary infestation in stored grains. It attacks cereals, flour, packaged food, rice and rice products. Latheticus oryzae adult dorsal view
Oryzaephilus acuminatus, is a species of silvan flat bark beetle native to India and Sri Lanka. [1] [2] Description. The species is very similar to saw-toothed grain ...
Upon paralyzing a host (a beetle larva or pupa) the female typically lays 2 eggs (one female and one male) onto the host's body. When 2 larvae develop on the same host they develop on average in 2/3 the time required for a solitary larva to develop. The life cycle is completed in ~20 days at room temperature on Oryzaephilus surinamensis ...