Plants smell different when they are eaten by exotic herbivores

When they are chewed by insects or other small animals, many plants react by releasing odours to attract the insects’ enemies. A new study published in the scientific journal New Phytologist reveals that the odour bouquet changes depending on the type of herbivore that eats the plant. This helps the plant to specifically attract natural enemies that feed on the herbivores eating them. To the surprise of the researchers involved, native plants can even recognise when they are eaten by exotic herbivores. In this case, they emit a specific odour bouquet. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)