A complete collection of aphid details

Aphids, also known as drilling insects and honey insects, are herbivorous insects, including all members of Aphidoidea. At present, there are about 4400 species of aphids in 10 families, most of which belong to Aphidae.

Aphids are also one of the most destructive pests on earth. About 250 of them are serious pests in agriculture, forestry and horticulture. The size and length of aphids vary from 1 mm to 10 mm.

The natural enemies of aphids are ladybugs, syrphids, parasitic bees, aphid-eating midges, crab spiders, lacewings and entomopathogenic fungi (including Metarhizium anisopliae).

Aphids are widely distributed in the world, but mainly concentrated in temperate regions. In addition, the species diversity in tropical regions is much lower than that in temperate regions. Aphids can migrate long distances, mainly by wind; For example, lettuce aphids are thought to have spread from New Zealand to Tasmania in this way. Some human activities can also help the migration of aphids, such as the transportation of plants with aphids.