U.S. farmers battle bugs in the field, but once grains are stored, pests remain a challenge - Entrepreneur Generations

Bugs normally eat at least 30% of a stored crop.
(Graphic by Adam Dixon, Offrange)

Storing commodities like corn or soybeans in grain bins or in shipment packing on land or at sea doesn't mean food is safe from hungry bugs. Jonathan Feakins reports for Offrange, "From bins to packaging, the amount of lost product brought about by entomological pests alone could easily rival better-known, higher-profile losses that occur in both the field or in dumpsters.

Most people know that pests like to eat crops, but they don't realize how much bugs can eat after a crop is harvested. Hannah Quellhorst, an expert in stored product entomology at Kansas State, told Feakins, "After harvest, we always lose a minimum of 30%. It can be as high as 80%, especially in regions where maybe there’s less access to inputs or secure storage."

Beetles, specifically weevil and borer larvae and adults, are among the most worrisome insects for stored grains and rice.

Researchers, including Quellhorst, have been studying the Khapra beetle, which isn't native to the U.S., but has hitchhiked into the country. "One of the top hundred most dangerous invasive species in the world, Khapra beetle larvae can be voracious, devouring their way through stored grains while leaving behind an unholy mess of skins and waste," Feekins explains.

Prostephanus truncatus, the
larger grain borer (Wikipedia photo)

The larger borer, native to the U.S., has incredible eating power that can mow through stored crops before a farmer even knows they are there. Quellhorst told Feakins, "It can chew through metal. It can chew through plastic. I have pictures of it chewing through a plastic petri dish so it can escape."

Jacob Landis, a regenerative farmer outside of Sterling, Illinois, who often battles with grain weevils, uses the colder temperatures common to the Midwest to "kill or arrest the life cycle of insects," Feakins reports.

Reducing food waste is part of the push for stored-product entomology. Landis told Offrange, “I push back on the fallacy that we need to raise bumper crops to be able to feed the world. There is just a lot of waste in the system. If we would manage our waste, it wouldn’t be as much of a concern.”


from The Rural Blog https://ift.tt/vKAxCpB U.S. farmers battle bugs in the field, but once grains are stored, pests remain a challenge - Entrepreneur Generations

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