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Weevils also are known to infest oats, rice, corn, corn meal, sorghum, and cereal, so you might want to apply the same practice you do to your flour as those items as well.
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.
Control of weevils involves locating and removing all potentially infested food sources. Rice weevils in all stages of development can be killed by freezing infested food below −18 °C (0 °F) for a period of three days, or heating to 60 °C (140 °F) for a period of 15 minutes. [9]
Female weevils have the ability to reproduce parthenogenetically [2] with fertilisation of eggs required to produce males, though no males have been observed. [3] This form of parthenogenesis is known as thelytoky. Grubs grow up to 1 cm in length, have a slightly curved, legless body and are creamy white in colour with a tan-brown head.
The control measures used have included a wide range of pesticides, including calcium arsenate, DDT, toxaphene, aldrin, dieldrin, endrin, heptachlor, malathion, and parathion. In 1958, the National Cotton Council garnered the Congressional support to create the USDA Boll Weevil Research Lab. Status of the program in 2006
Other weevils are used for biological control of invasive plants. A weevil's rostrum, or elongated snout, hosts chewing mouthparts instead of the piercing mouthparts that proboscis-possessing insects are known for. The mouthparts are often used to excavate tunnels into grains. [1] In more derived weevils, the rostrum has a groove in which the ...
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