Back off, bugs: Sweet potato cultivars use a specific odor to warn other plants of herbivores

(Natural News) A variety of sweet potato emits a specific odor that not only deters incoming pests – it also alerts neighboring plants of its kind to the presence of a threat. That’s according to researchers from the Max Planck Institute for Chemical Ecology (MPICE) in Germany and National Taiwan University, who examined a sweet potato cultivar…  » READ MORE