格栅法蝇密度监测技术研究

Study on grid method for surveillance of fly density

目的比较格栅法、目测法、粘捕法和笼诱法监测蝇密度的差异,为有效应用格栅法监测蝇密度提供依据。方法按照GB/T23796-2009《病媒生物密度监测方法蝇类》方法在农贸市场内及外环境监测蝇密度。结果室内监测,格栅法蝇密度低于粘捕法和目测法,但格栅法与目测法及粘捕法之间差异无统计学意义;格栅法与目测法蝇密度相关性极高(r=0.933489,P=0.000),格栅法与粘捕法蝇密度的相关性较高(r=0.791836,P=0.004);室外监测,格栅法蝇密度低于目测法,略高于笼诱法,格栅法与目测法及笼诱法监测蝇密度之间差异无统计学意义;格栅法与目测法蝇密度无相关性(r=0.408318,P=0.212),格栅法与笼诱法蝇密度的相关性较高(r=0.848092,P=0.001)。结论格栅法监测可用于蝇密度监测,室内可与目测法、粘捕法互相替换,室外可与笼诱法互相替换。

Objective To compare grid method, vision method, sticky trap method, and cage trap method in terms of the surveillance results of fly density and to provide a basis for effective application of grid method in the surveillance of fly density. Methods Surveillance of fly density was performed inside and outside the farmer＇ s market according to GB/T 23796-2009 Surveillance Methods for Vector Density-Fly. Results In the indoor surveillance, the fly density measured by grid method was lower than those measured by sticky trap method and vision method, but without significant differences between them. There was a strong correlation between the fly densities measured by grid method and vision method （r=0.933 489, P=0.000）, and a good correlation was also seen between those measured by grid method and sticky trap method （r=0.791 836, P=0.004）. In the outdoor surveillance, the fly density measured by grid method was lower than that measured by vision method and a little higher than that measured by cage trap method, but without significant differences between them. There was no correlation between the fly densities measured by grid method and vision method （r=0.408 318, P=0.212）, but a good correlation was seen between those measured by grid method and cage trap method （r=0.848 092,P=0.001）. Conclusion Grid method can be used for the surveillance of fly density. It can serve as a substitute for vision method and sticky trap method in the indoor surveillance and for cage tran method in the outdoor surveillance.