Abstract
Field experiments were carried out during 2015 and 2016 seasons at the experimental farm, Faculty of Agriculture, Saba-Basha, Alexandria University to evaluate the efficacy Prev-AM®, Planta® and Mospilan® against B. tabaci on tomato plants. prev-AM® achieved the highest initial and residual reduction% of whitefly adults giving (84.8%, 69.7%), respectively. Planta® achieved the highest initial and residual reduction% of whitefly immature giving (78.7%, 81.2%), respectively. On the other hand Mospilan® achieved the least initial effect. Sequence 4 (prev-AM®, Planta®) recorded the highest initial and residual reduction% of whitefly adult giving (86.3%, 83.1%), respectively. Sequence 5 (Planta®, Mospilan®) gave the highest initial and residual reduction% of whitefly immature giving (89.2%, 88.8%), respectively. Natural pesticides based on plant-essential oils may represent alternative crop protectants. From this study, orange oil and pyriproxyfen may introduce an effective control agents against whitefly in tomato field.
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