CONTROL THE GREEN PEACH APHID, Myzus persicae (SULZER) INFESTING CHRYSANTHEMUM PLANTS UNDER GREENHOUSE

Abstract

Insecticides; Malathion, Vertimek, Chloropyrifos, Deltanete, Ekatin and Bifenthrin and two oils; Jojoba oil and Royal-oil at the recommended rates of application were evaluated for controlling the green peach aphid, Myzus persicae (Sulzer) infesting Chrysanthemum indicum L. cv. White wonder growing in pots under plastic greenhouse conditions in 2012 and 2013. Treatments were applied 2 times in 2012 and 3 times in 2013 seasons to induce a perfect control of the aphids and protect the plants for longer periods. Vertimek was the most effective insecticide, recording the highest reduction percentages in 2012 after 35 days and in 2013 after 41 days post-initial application (98.71 and 97.7%, respectively). In 2012, Jojoba oil was the least tested aphicides recording reduction percentages 91.5% after 35 days of application while in 2013 Royal oil was the least one representing with reduction percentages 90.1% after 41 days. All compounds were differed significantly than control and not exhibited any phytotoxicity on leaves and flowering blooms.