To provide the basis for risk assessment of Amblyseius swirskii and joint release of multiple mite species and the effects of sex recognition on the IGP and cannibalism of predatory mites, this study explored the intraspecific and interspecific relationships of female and male adults of three phytoseiid species: exotic generalist Amblyseius swirskii, native N. barkeri and commercialized N. cucumeris. The main results were as follows. The adult individuals of the three phytoseiid species did not prey on intr...