Efficiency of Some Neonicotinoids Compounds Against Whitefly (Bemisia Tabacion) Stages in Tomato Under Field Conditions

: Field experiments were carried out at the experimental farm of Etay-El-Baroud Agricultural Research Station, Beheira Governorate, Egypt, during the 2021 season to evaluate the efficiency of four neonicotinoids compounds [Thiamethoxam (Actara 25% WG), Imidacloprid (Pestidor 25% WP), Acetamiprid (Mosiplan 20% SP), and Thiacloprid (Calypso SC 480)] on whitefly ( Bemisia tabacion ) stages in tomato. These compounds were assessed as commercial formulation sizes using the recommended dose against whitefly stages on tomato for comparison between four sprays and their residues in leaves after different periods of application. The effects of all insecticidal treatments on the natural population of whitefly stages (nymphs and adults) were recorded as the reduction percentage of whitefly population stages at 2, 5 and 7 days after the first, second, third and fourth sprays in the field. In general, the obtained results indicate that all tested treatments decreased the whitefly population stages (nymphs and adults) compared to the control.