Yadav, J.L., Singh, S.P., & Kumar, R. 2004 The population density of the mango mealy bug (Drosicha mangiferae G.) in mango.. Progressive Agriculture 4(1): 35-37.

Notes: The population density of mealy bug (D. mangiferae) was studied during 2000 in a mango cv. Amrapali orchard in Meerut, Uttar Pradesh, India. The average number of mealy bugs per panicle as well as per trunk were recorded and correlated with abiotic factors, i.e. average temperature, relative humidity and rain. The highest population (17.50) of mango mealy bug was recorded on 5 April 2000 at an average temperature and relative humidity of 27.43 deg C and 46.57%, respectively. A decreasing population trend, i.e. 8.25 and 4.75, was observed on 26 April and 3 May 2000 at an average temperature of 31.31 and 31.55 deg C and relative humidity of 48.35 and 49.80%, respectively, due to increasing temperature and relative humidity. The lowest population (1.50) of mango mealy bug was recorded on 24 May 2000 at an average temperature and relative humidity of 33.03 deg C and 56.75%, respectively. No infestation was recorded on 31 May 2000 due to an increase of temperature (33.55 deg C) and relative humidity (63.05%). A similar trend of increase and decrease of mealy bug population on the tree trunk was observed with increase and decrease of temperature and relative humidity. The bug population on the tree trunk came to nil on 17 May 2000 onwards.