Eucalyptus-pest-control
Guides
Psyllaephagus
Psyllaephagus is a large genus of chalcid wasps in the family Encyrtidae, containing approximately 245–246 described species as of 2019, with greatest diversity in Australia (~100 described species, possibly ~1,000 total). The genus was established by William Harris Ashmead in 1900. Most species are primary parasitoids of psylloids (Hemiptera: Psylloidea), with some secondary parasitoids. Three Australian species—P. pilosus, P. bliteus, and P. yaseeni—have been successfully deployed as biological control agents against invasive psylloids in California, Europe, Hawaii, and southeast Asia.