The integrated use of chemical insecticides and the entomopathogenic nematode, Steinernema feltiae, for the control of sweetpotato whitefly, Bemisia tabaci

摘要: The integration of infective juveniles the entomopathogenic nematode, Steinernema feltiae, with chemical insecticides to control second instar stages sweetpotato whitefly, Bemisia tabaci, was investigated. effects direct exposure for 24 h field rate dilutions four (imidacloprid, buprofezin, teflubenzuron and nicotine) on nematode infectivity Galleria mellonella larvae were tested in a sand tube bioassay. Teflubenzuron had least adverse effect nematodes whilst imidacloprid, buprofezin nicotine significantly reduced infectivity. impact dry insecticide residue present tomato verbena foliage against B. tabaci investigated (imidacloprid is systemic pesticide no residues would occur foliage). No significant reduction level recorded when compared applied residue-free either or plants. Nematodes combination imidacloprid gave higher mortality treatment individually both host S. feltiae these agents into an integrated pest management programme discussed.