A chemical response to vibrations caused by insects chewing doesn't imply pain or any other emotion.
Animals feel pain in part to learn in a dynamic environment, for example to run away from the source of pain. What evolutionary advantage would there be in a plant that feels pain or emotions?
Animals feel pain in part to learn in a dynamic environment, for example to run away from the source of pain. What evolutionary advantage would there be in a plant that feels pain or emotions?