HORTICULTURE

Detailed explanation-1: -Many are on the ground or under material on the ground. Different kinds can be found on vegetation, in rotting wood or plants, in carrion, fungi, and dung. Some are aquatic, living in bodies of water that range from small puddles to cold mountain streams, and a few are parasitic.

Detailed explanation-2: -An overwhelming majority of bark beetle species only colonize dead or severely stressed trees (left). Tree-killing species may colonize healthy trees during intermittent epidemics (right), but most of the time they are endemic and utilize dead and weakened trees (left).

Detailed explanation-3: -Forest insects play important roles ecologically and economically. They pollinate plants, decompose dead plant and animal tissue, provide food for vertebrates, regulate pest organisms and shape entire landscapes. Some are considered pests, while others provide usable products.

Detailed explanation-4: -Trees are an ideal habitat for many insects. They can live among the branches and leaves and in any crevices or hollows in the bark. Weaver ants, for example, live in forests in sub-Saharan Africa and make their habitat (a nest) out of leaves.