Weed occurrence and damage in public green lawn of Suzhou urban area was assessed using five-grade weed visual survey method. The occurrence and damage of weeds in public green lawn of Suzhou City was very common. There were totally 67 species of weeds in green lawn,with the density of 6. 5 plant/m2,the relative abundance of 7. 6%,the relative coverage of 10. 3%,the relative height and the occurrence frequency of 100%,and the overall damage level of weeds was above the forth level. There were 14 species of major weeds causing damage,and 15 species of weeds were found to pose regional damage. Haloxyfop-R-methyl or Ping'an-14 could be applied to control grassy weeds in clover lawns,with the herbicidal effect above 90%. MCPA,fluroxypyr,or clopyralid could be administrated alone to control broadleaf weeds in Cynodon dactylon or Festuca elata lawn,with the herbicidal effect above 85%. Since the weed species in weed communities of lawn were different,the types of herbicides should be targeted,or SD additives could be added to improve the herbicidal effect.
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