Western flower thrips (Frankliniella occidentalis) is a thermophilous species of insect that originates in California (USA). It has a wide host range, for it feeds on more than 250 different host plant species. It damages plants directly and indirectly. It damages plant tissue directly with its mouth apparatus for sucking and by laying eggs. Indirect damage is caused by transmitting tospoviruses. Suppression of the pest is difficult because of its way of life and the occurrence of insecticide resistance. The use of entomopathogenic nematodes proved to be a suitable alternative to insecticides. Nematodes are more environmentally friendly and acceptable compared to insecticides. They carry a bacteria in their body, which quickly cause septic death of a host. When applying the nematodes we have to pay attention to time, nematode concetration, frequency and to abiotic factors, such as temperature, radiation and ground characteristics. Nematodes can also be combined with specific phytopharmaceutical and other natural enemies of the western flower thrips. A lot of research has been done proving that the use of entomopathogenic nematodes for western flower thrips suppression is reasonable. Still, more studies need to be done on the issue. Bionomics of individual species needs to be studied to further improve agricultural practice. Based on native and foreign professional literature, i wish to present the success of the use of entomopathogenic nematodes for western flower thrips suppression so far.
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