author(s)
Archana Kerketta, Madan Kumar Jha and KL Paikra

abstract
Insect pests are the major threats to production and productivity of greenhouse crops worldwide. Presence of warm, humid conditions and abundant food under protected structures provide a stable environment and habitat for pest development. Protected cultivation/Greenhouse technology has been in use for crop production for more than fifty countries all over the world. China is believed to have adopted a plastic greenhouse concept to a great extent. Japan, with about 42,000 ha. (hectare) under plastic and glass cover land holdings with shorter growing seasons in Holland and Japan have been the reason behind adopting Protected cultivation /greenhouse for intensive crop production.