PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Checking a truckload of wheat for pests. Upon arrival at a grain storage facility, wheat undergoes a series of checks and controls. Among these is a test to see if the wheat is infested with weevils. Weevils are beetles that lay their eggs inside grains. The eggs hatch into larvae, which use the grain as a food source.
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