Source: SCIENCE MAGAZINE, 4/25/19


Many pesticides have an inherent weakness: The active ingredients don't adhere well to the plants they protect. After the chemicals are sprayed onto crops, rain can wash them off into the soil and groundwater. Farmers must spray again and hope for dry weather. Now, researchers have devised a stickier approach to protecting plants, one that could be applied less frequently than chemical pesticides and might be less toxic. 

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