This small black beetle has been used to control and eradicate almost every whitefly species of commercial importance, from the “Giant” whitefly on Eucalyptus in California, to Bemisia in Poinsettia. It is native to Florida where its’ natural host is, Bemisia. Because of this, Delphastus will seek out and destroy any Bemisia colonies before it moves on to other species of whitefly.
• Cloudywinged, citrus and rhododendron whitefly (Dialeurodes spp.)
• Citrus blackfly (Aleurocanthus woglumi)
“Delphastus” is a specialized whitefly predator in the lady beetle family. Adults are tiny, 1/15th in. long, dark brown to black in color, and hemispherical in shape. Females have reddish-yellow heads, which are lighter than males. Larvae are elongated, cream colored, covered with short fine hairs, and have conspicuous legs. Adults will fly, while larvae are slow moving and travel from plant to plant on leaves.