Effect of Seasonal Variations and Weather Factors on Population Dynamics of Mango Mealybug (<i>Drosicha mangiferae</i>) in Bangladesh

An experiment was conducted in mango orchard of Sher-E Bangla Agricultural University (SAU) campus, Dhaka to determine the effect seasonal variation round year and weather on population dynamics mealybug (Drosicha mangiferae) tree. The first appeared early December disappeared June a year. Its started increase gradually from continued up February when ambient average temperature 20.95°C, relative humidity 63% rainfall absent. highest insect (33.33/30 cm branch) recorded lowest (3.75/30cm May. Adult insects ground under selected tree showing 6.67 males 123.33 females per 81 m2. Population (32.5/81m2) that (352.75/81m2) reached peak 28.19°C, 61% 0.00 mm. When high adult enter into soil disappeared. Correlation between positive. negatively correlated with rainfall.