Potential of South African entomopathogenic nematodes (Heterorhabditidae and Steinernematidae) for control of the citrus mealybug, Planococcus citri (Pseudococcidae)

► Planococcus citri highly susceptible to entomopathogenic nematodes. ► Nematodes were found to be 15 times less potent at 80% than at 100% humidity. ► Steinernema yirgalemense was found to be three times more potent than Heterorhabditis zealandica.