云南潞江坝桔小实蝇成虫种群变动规律  

Population dynamics of Bactrocera dorsalis(Diptera:Tephritidae) in Lujiangba,Yunnan.

作　　者：陈鹏[1] 叶辉[1] 

机构地区：[1]云南大学生命科学学院生物系

出　　处：《浙江大学学报（农业与生命科学版）》2007年第6期633-640,共8页Journal of Zhejiang University:Agriculture and Life Sciences

基　　金：国家重点基础研究发展计划"973"资助项目(2003CB415100);国家自然科学基金资助项目(30260023)

摘　　要：于2004—2006年采用诱蝇谜对云南潞江坝桔小实蝇成虫种群动态进行诱捕监测，并就气候因子及寄主植物对该种群变动的影响进行系统分析．云南潞江坝桔小实蝇成虫种群表现出全年性发生，并明显分为种群高位（5～11月）和低位（12～4月）2个时期，成虫种群增长呈单峰型，高峰期出现在8月．芒果、龙眼、柑桔、番木瓜、荔枝、番石榴是桔小实蝇在该地区的主要寄主水果，其种植面积、挂果期和产量对桔小实蝇种群数量变动影响较大，是影响该地区桔小实蝇种群变动的主要因素之一．逐步回归分析揭示，月平均气温、月平均最高气温、月降雨量、月雨日数、月日照时间和月相对湿度综合影响5～11月潞江坝桔小实蝇种群数量变动，其中雨日数和空气相对湿度的影响最为明显；月平均气温、月平均最高气温、日照时间和空气相对湿度综合影响12～4月潞江坝桔小实蝇种群数量变动，其中月平均最高气温和月平均气温的影响最为显著．Annual monitoring was conducted on the population dynamics of the oriental fruit fly, Bactrocera dorsalis （Hendel） （Diptera： Tephritidae） through methyl eugenol-baited traps all year during 2004-2006 in Lujiangba, Yunnan,China. Temperature, rainfall and host-plant species were analyzed in relation to population fluctuations of the fly. The results indicate that the fruit fly occurs all year around in Lujiangba. The population fluctuation is significantly separated into two periods： a low tide population period from December to next April, and a high tide population period from May to November with high abundance in August in each year. Mango, longan, citrus, papaya, lichee and guava were the most preferred host plants of B. dorsalis in Lujiangba. The planting areas, fruiting periods and productions of these fruits exerted essential effects on the fly population fluctuations, and regarded as one of the important factors affecting the fly population dynamics in the Lujiangba area. Stepwise regression analysis demonstrates that during the period from May to November, monthly mean temperature, monthly mean maximum temperature, monthly rainfall, monthly raining days, monthly sunlight hours and relative humidity synthetically impact the population dynamics, among these factors, monthly raining days and relative humidity are crucial factors affecting the population dynamics. During period from December to next April, monthly mean temperature, monthly mean maximum temperature, monthly sunlight hours and relative humidity synthetically impact the population dynamics, among them, the monthly mean maximum temperature and the monthly mean temperature are the crucial factors affecting the population dynamics.

关 键 词：桔小实蝇 种群动态 气候因子 寄主植物 潞江坝 

分 类 号：Q968[生物学—昆虫学]