[目的]了解大理宾川地区果实蝇的发生危害情况.[方法]以大理宾川县国家级出口食品农产品安全质量示范区内果园为调查基地,于2014年3-10月采用引诱剂诱捕的方式对该地区果实蝇的种类及种群数量动态进行了调查,并就气象因子对实蝇种群数量变动的影响进行了综合分析.[结果]宾川地区危害水果的果实蝇种类有4种,即番石榴实蝇(Bactrocera correcta)、瓜实蝇(B.cucurbitae)、橘小实蝇(B.dorsalis)和南瓜实蝇(B.tau);其中以橘小实蝇数量最多,为优势种,而南瓜实蝇数量最少,是劣势种.4种实蝇在整个调查期间的种群数量动态变化呈单峰型.从不同样地的果实蝇发生情况来看,3块样地果实蝇种群数量的变动也具有基本相同的规律,仅呈现1个种群数量增长高峰.相关分析表明,果实蝇种群数量与月平均温度和相对湿度相关性较显著,其次为月平均最高温度、月平均最低温度、月降雨量.通径分析结果表明,月平均最高温度、月平均温度、月降雨量对果实蝇种群数量有直接影响,而月平均最低温度和相对湿度是通过间接作用来影响果实蝇种群的数量.[结论]试验结果为果实蝇的防治提供了理论依据.%[Objective]In order to understand the damage of the fruit fly in Binchuan County,Dali City.[Method]We conducted an investigation on the fly species and population dynamics using lure traps in Binchuan national export food quality and safety of agricultural demonstration zone district registered orchards during 2014 March to October,and also analyzed the effect of climatic factors on population fluctuation of the fly.[Resulst]There were four different fly species which were harmful to the fruit in Binchuan area,namely Bactrocera correcta(Bezzi),B.cucurbitae (Coquillett),B.dorsalis(Hendel) and B.tau (Walker).The number of B.dorsalisis the most abundant while the B.tau was the least.The population dynamics of the four fly species presented a single peak in the whole period of investigation.On the other hand,the population fluctuation of the fly among three sample plots appeared a nearly same rule which also had a single peak over the study period.Correlation analysis indicated that the relationship between population fluctuation of the fly and climatic factors,monthly average temperature and relative humidity,was more significant,followed by monthly average maximum temperature,monthly average minimum temperature,monthly rainfall.From the results of path analysis,factors such as monthly average maximum temperature,monthly mean temperature and monthly rainfall had a direct effect on the fly population,while the factors monthly average minimum temperature and relative humidity were indirect influencing the number of fruit fly populations.[Conclusion]The results provide theoretical basis for the control of fruit fly.
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