Efficacy of Some Insecticides on White Mango Scale, Aulacaspis tubercularis (Hemiptera: Diaspididae) on different cultivars of mango trees

Mango (Mangiferaindica L.) has been identified as the most important fruit in commercial and environmental aspects; it is grown in more than 100 countries. The current study evaluates four insecticides, acetamiprid 20%SP (Telfast), chlorfenapyr 24% SC (Challenger super), pyriproxyfen 10% EC (Admiral) and mineral oil 97% EC (Tiger oil) used to control white mango scale Aulacaspis tubercularis.The means of the insect reduction percentage were 90.15, 81.95, 85.45 and88.40 in the first season and 89.14, 79.26, 87.68, and 86.74% in the second season for mineral oil, chlorfenapyr, acetamiprid, and Pyriproxyfen, respectively on zebdia cultivar.  While the means of the insect reduction percentage were 89.26, 75.70, 74.17 and 85.85%, in the first season and 87.82, 87.08, 81.74 and 86.32 in the second season, respectively, for the four tested insecticides on kit mango cultivar.  While the total means of the insect reduction percentage reached to 90.29,84.39,83.02 and 86.57 in the first season and 91.93, 87.58, 89.95 and 90.46% in the second season respectively, for mineral oil, chlorfenapyr, acetamiprid, and Pyriproxyfen, on Tomycultivar for second season. Mineral oil had the highest  insect reduction of white mango scale for two consecutive years on zebdia, kit and Tomy mango cultivar, but chlorfenapyr and acetamiprid recorded the lowest reduction for two consecutive years on zebdia and kit cultivar