关键词: 城市化, 影响, 蜚蠊群落, 防制对策

Abstract: Objective To understand the effects of urbanization on the communities' structure of the cockroaches in Suzhou.Methods Sticky traps nightly method.Results The average density of the indoor cockroaches was 0.53 pest/trap from 2004 to 2005,and it was 0.05(pest/trap) from 1997 to 2001.The proportion of Blattella germanica,Periplaneta americana andP.fuliginosa were 80.30%,17.04% and 2.66% respectively in 2004-2005,and in 1997-2001 they were 86.69%,7.37% and 5.95% respectively.The average density of the cockroaches was 0.49(pest/trap) in the old districts from 2004 to 2005,and in the new districts it was 0.58 pest/trap.In old districts,the proportion of the three species of cockroaches were 75.71%,22.31% and 1.98% respectively,but in new districts they were 84.52%,12.19% and 3.28% respectively.The density and communities structures of the cockroaches were significant different in 2004-2005 from those in 1997-2001(P<0.01).Conclusion It indicated that urbanization affected the structure and quantity of the cockroaches in Suzhou.