List of Crop Pests

Written by lisa huston
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List of Crop Pests
Natural predators are controlled by insecticides. (Jupiterimages/Goodshoot/Getty Images)

Crop pests are an agricultural problem requiring constant control of infestation. These pests grow hundreds of eggs on the surface of and inside different grains, like corn and barley. Eliminating and controlling these pests are important parts of the process, but the first step is identifying the pests.

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Red Rust Flour Beetle

The rust red flour beetles are reddish brown pests that infest dry products like flour and grains. The beetles invade household foods like breakfast cereals, dried fruits, beans and dog food. Also known as bran bugs, these pests are treated with insecticide to prevent further infestation.

Angoumois Grain Moth

The Angoumois grain moth, lives in stored grain. The female moth hatches hundreds of eggs infesting the grain with larvae as it turns into a reddish brown worm. These pests are found in rice, oats, barley, corn and rye and are detected by a foul smell and tastes in the grain. Heating the grain at a specified temperature kills the larvae.

Grain Weevil

Grain weevils are small black bugs found inside grain and seeds, such as corn and rice. These weevils start as small, white and wrinkled larvae growing inside the seeds. In a month, they eat through the seed and surface as adults. These pests are harmless and do not bite, stink or carry diseases. Controlling them is a major problem solved by eliminating all infested grains. Farmers have applied heat or cold to prevent spreading of the larvae.

Lesser Grain Borer

Lesser grain borers are slim black or reddish brown pests with powerful jaws that are found in warm warehouses and damage several types of grain, including corn, rice and wheat. Small holes indicate the infestation of these pest, leaving a pungent honey-like odour in wheat. These flying pests are able to quickly infest crops.

Sawtooth Grain Beetle

Sawtooth grain beetles resemble cockroaches. They are external feeders, eating infested grains and contaminating food like popcorn, cornmeal, bran, macaroni and rice. Primarily found in stored food products, these beetles can eat through packages and infest grain facilities. Freezing food to zero degree Fahrenheit kills them.

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