Polyphagous thrips are among the most important economically pests that cause serious damage in various ornamental and vegetable crops throughout the world.
Because of their small size and cryptic habits, a number of thrips species are easy to invade into new areas. For a long period, thrips control has mainly relied on frequent use of insecticides, which lead to a series of ecological problems.
Although a number of alternative management tactics have been developed in many cropping systems, many invasive thrips continue to spread internationally and display vast damage potential. Microbial control of thrips includes the entomopathogenic fungi Beauveria bassiana, Metarhizium anisopliae, Isaria fumosorosea and Lecanicillium lecanii. The strains of fungal pathogens that were screened and proven to be effective for control of thrips should be developed worldwide and available for growers.