Scientists Suggest Sound as Possible Alternative to Pesticides
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COLUMBIA, Mo. (KMOX) - University of Missouri scientists suggest that one day we may be able to use sound, rather than pesticides, to protect plants from harm.
Plants have natural defense systems.
For example, if a mustard plant gets munched on by a caterpillar, it will boost the toxins in its leaves for protection.
When University of Missouri Columbia biologist Rex Cocroft played the sound of a chewing caterpillar, that noise alone triggered the plants’ defense system.
“What we found was that having been exposed to those vibrations, those chewing vibrations for a few hours, that primed the plants so when they were attacked by the caterpillars they responded with much higher levels of these mustard oils that are toxic to caterpillars,” Cocroft says.
That might lead to non-pesticide ways to protect crops.
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