Bionomics of Neogreenia sophorica
Author of the article:HAN Xiao-Mei1** , ZHAO Xi-Jing2 , CHENG Gui-Fang2 , LIU Ying2, WU San-An1
Author's Workplace：1 The Key Laboratory f or Silviculture and Conservation of Ministry of Education, Beijing Forestry University , Beijing 100083, China; 2 The Gardening Team of Dongcheng District , Beijing 100011, China
Key Words：Neogreenia sophorica, life history
Abstract：Neogreenia sophorica Wu is a new pest of Sophor a japonica L. found in Dongcheng District of Beijing city in 2004 It has one generation per year , and over-winteres as 2nd instar nymphs ( cysts) under bark on stem and branches. One adult female laid 105 eggs on average parthenogenesisly. The hatchability of egg is 47.53%。After settled the first instar nymphse always parasite inside phloem of the trunk above 1m from the horizon and branches that are more than 5 cm in the diameter. Finally, chemical control in dispersion periods nymphs of first instar is suggested.