This kind of adaptation, in which an insect looks the same as its background habitat, is known as camouflage. Insects feed on many parts of plants and trees. They get nectar, fruit juices and sap from some plants. They feed on green leaves, dried leaves and decaying plants. They eat branches, roots, wood, flowers, pollen and seeds.
Some insects have mouth parts that can suck the plant juices and some have mouth parts for chewing.
Insects like the spruce budworm eat the needles of conifer trees. In Nova Scotia, large populations of the spruce budworm have damaged or destroyed millions of trees. A single tree can have many different types of insects. An example is the white pine tree, which can have 20 different species of insects living in various parts of it. Three species feed on the buds of the tree.