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近年来,中黑盲椿的数量上升很快。据1984、1985年调查,一代中黑盲椿每亩虫量一般在3000～5000头,高的在1万头以上,占一代盲椿总量的80～90％。后期危害亦很严重,棉花幼铃受害率一般在10％以上,高的达60％以上,其危害损失程度在沿海和沿江部分棉区,已超过绿盲椿。据文献记载,中黑盲椿是以卵在苜蓿、其他杂草寄主和棉花茎髓
In recent years, the number of black blind Chun rose rapidly. According to the surveys of 1984 and 1985, the population of black blind perilla in a generation generally ranges from 3,000 to 5,000 and the height is above 10,000, accounting for 80 to 90% of the total. In the late period, the damage was also serious. The damage rate of young cotton bollworms generally exceeded 10% and the height was over 60%. The loss of harm caused by cotton bollworms exceeded that of the coastal areas and some cotton fields along the Yangtze River. According to the literature, black-winged black-winged chinense is based on the fact that eggs in alfalfa, other weed hosts and cotton stems