Living things do not like being eaten. Plants are living things. Plants do not like being eaten...

Certain types of plants have compounds that work in part with the saliva of caterpillars. When the saliva of the caterpillar and the juices of the plant mix, a fragrance is emitted that certain parasitoid wasps are very attracted to. The parasitoid wasps then kill the caterpillars and often use the carcasses to lay eggs within. This is a form of mutualism between the plant and the wasp works only when the fragrance from the plant and the saliva combine.
As Whitehead put it in Process and Reality, eating is plain and simple robbery.
This food is destroyed by dissolving it into somewhat simpler social elements. It has been robbed of something. Thus all societies require an interplay with their environment, and in the case of living societies this interplay takes the form of robbery...