The predatory mite Amblyseius swirskii (Athias-Henriot) (Acari: Phytoseiidae) is currently used as an efficient biological control agent of thrips, whiteflies and spider mites, which are economically damaging pests ornamental plants vegetable crops grown in greenhouses fields worldwide. Currently, the effects relative humidity (RH) water availability on optimal growth A. unknown. Here, we test ...