Screening of biological resources of insects and mites for biological control of pests in greenhouses

The peculiarities of agriculture technologies in modern greenhouse cause complications in screening of natural enemies, because of increasing the requirements for their adaptive abilities, feasibility of cost-effective mass production, long-term storage and transportation. To be effective in greenhouses species should start breeding as quickly as possible as pest hot spots have appeared. Adopted for greenhouses natural enemies have mainly ruderal life strategy. Regular invasions of new phytophages have an impact on plant protection systems. At the same time, the programs for the introduction of new natural enemies have been stopped due to the potential negative impact of the introduced species on the biodiversity of indigenes species communities. The review analyses the changes in screening of natural enemies that occurred as a result of the introduction of new crop production technologies and the complication of the phytosanitary situation.