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目的评估胶饵类灭蟑剂对医院住院大楼内蟑螂杀灭效果。方法采用氟虫腈杀蟑胶饵对住院大楼进行灭蟑,采用目视法及粘蟑板法监测灭蟑前后蟑螂密度。结果共监测340间房间,灭蟑前房间阳性率为24.52%,活蟑螂数为572只,平均密度为3.69只/间,其中黑胸大蠊370只(64.69%),德国小蠊214只(37.41%)。灭蟑后房间阳性率为27.57%,活蟑螂数为113只,平均0.61只/间,其中黑胸大蠊94只(83.19%),德国小蠊19只(16.81%)。灭蟑率为83.47%,对黑胸大蠊杀灭率为78.72%,对德国小蠊的杀灭率为92.54%。对灭蟑后各病房住院人数和捕得蟑螂数采用Pearson相关性分析,相关系数为0.389(P=0.000),呈现正相关关系。结论胶饵类灭蟑法对德国小蠊的杀灭效果好于对黑胸大蠊的杀灭效果,且蟑螂密度随住院患者人数增多而增大。但采用90%的灭蟑率作为考核灭蟑效果的标准,本研究发现胶饵类灭章法在医院环境下灭蟑效果欠佳。
Objective To evaluate the effectiveness of gel bait cockroach killing cockroaches in hospital hospital buildings. Methods Fipronil was used to kill cockroaches in the inpatient building by using the bait for killing cockroaches. The densities of cockroaches before and after cockroaches were monitored by visual inspection and sticky cockroach method. Results A total of 340 rooms were monitored. The positive rate of room before cockroaching was 24.52%, the number of live cockroaches was 572, the average density was 3.69 / compartment, of which 370 (64.69%) were black cockroaches, 214 37.41%). After cockroach, the positive rate of room was 27.57%, and the number of live cockroaches was 113, with an average of 0.61 / room, of which 94 (83.19%) were black cockroaches and 19 (16.81%) cockroaches. The rate of killing cockroaches was 83.47%, killing rate of cockroaches was 78.72%, killing rate of cockroaches was 92.54%. Pearson correlation analysis showed that the correlation coefficient was 0.389 (P = 0.000), showing a positive correlation between the number of hospitalizations and the number of cockroaches caught after the cockroach killing. Conclusion The killing effect of the gel bait method on German cockroaches is better than that on the black cocks, and the density of cockroaches increases with the number of inpatients. However, 90% of cockroaches rate was used as the criterion to evaluate cockroach killing effect. This study found that the gel bait cloak method has a poor effect of killing cockroaches in the hospital environment.