In the Pests section of the site are presented the main pests of agricultural crops, who are not other than insects, mites, nematodes, snails and slugs. The groups to which they belong are examined and also, in particular, for each one of them is given a description of its morphology, its biology and the environment in which it develops, becomes adult and complets its generations. Furthermore, detailed information is provided on the damage caused by them to both productive and in general, all plants of urban, agricultural and natural landscapes. At the same time, ways of preventing pests are examined and means and methods are proposed for their control.