When plants are exposed to pests, volatile compounds are often synthesized inside their leaves to attract natural enemies of pests  Often, in order to protect themselves from pests, plants regulate their odors and exaggerate the extent of their damage, thus attracting more natural enemies
The researchers believe the discovery could help scientists develop environmentally friendly insect control methods
When the larvae attack the cabbage, the cabbage releases a large number of volatile substances that the small vegetable larvae hate, thus driving away the cabbage