Insect-deterring sorghum compounds may be eco-friendly pesticide

Compounds produced by sorghum plants to defend against insect feeding could be isolated, synthesized and used as a targeted, nontoxic insect deterrent, according to researchers who studied plant-insect interactions that included field, greenhouse and laboratory components.

 I think this is a positive environmental change because they found a way to protect plants but not be harmful to helpful insects. 
https://www.sciencedaily.com/releases/2019/04/190403155427.htm

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