What do beetle's eat?

Every different species of beetle eats different things. Most beetles that live on leaves also feed on them. Some species, such as weevils, only eat very specific plants. Most beetles that feed on leaves will eat just about any plant. Many beetles are predatory, which means they prey on smaller animals. They generally eat any small insect, spider, bird or crustacean that they can find. A few species only prey on very specific animals. A few species of beetles eat poo, dead animals and fungi.

Beetles are the most diverse group of insect that there is. There is almost a particular beetle for about every plant there is.
Rose beetles eat red and white roses.