广东省实蝇类害虫调查初报

实蝇是危害水果和蔬菜的一类重要害虫,进行种类调查对于其检疫和防治具有重要意义。用多种诱剂、粘板在广东省的湛江、惠州、韶关、梅州4个市的10个调查点定点调查;将诱捕的实蝇带回实验室进行形态学鉴定,并统计每种实蝇的数量。4个地区共诱捕到实蝇11种,发生数量较多的有橘小实蝇[Bactrocera dorsalis(hendel)]、瓜实蝇[Bactrocera(Zeugodacus)cucurbitae(Coquillellett)]、南瓜实蝇[Bactrocera(Zeugodacus)tau(Walker)]、具条实蝇[Bactrocera(Zeugodacus)scutellata(Hendel)]、辣椒实蝇[Bactrocera(Bactrocera)latifrons(Hendel)]。在韶关、惠州共捕获到4头合腹寡毛实蝇属(Dacus)实蝇,初步鉴定为三点棍腹实蝇[Dacus(Callantra)trimacula(Wang)],为广东省首次报道,调查结果显示:从发生区域和数量上看,橘小实蝇均是广东省实蝇的优势种,其次是瓜实蝇;南瓜实蝇在调查区域均有发生,具条实蝇主要分布在广东北部的韶关、梅州地区。此调查有助于对广东实蝇害虫发生情况的了解。

Preliminary Survey on Fruit Fly (Diptera: Tephritidae) in Guangdong Province

Fruitfly is an important pest of fruit and vegetable crops, and a survey of fruit flies is of great importance for quarantine and control. A positional survey was made of fruit flies with several bait and sticky traps at 10 observation sites in Zhanjiang, Huizhou, Shaoguan and Meizhou, Guangdong Province. There were 11 species of fruit flies trapped in Guangdong Province, and most observed were Bac troc e ra (Bactrocera) dorsalis (hendel), Bactrocera (Zeugodacus) cucurbitae (Coquillellett), Bactrocera (Zeugodacus) tau (Walker), Bactrocera (Zeugodacus) scutellata (Hendel), Bactrocera (Bactrocera) latifrons (Hendel). Four fruitfly samples trapped from Shaoguan and Huizhou, were identified as Dac us (Callantra) trimac ula (Wang), which was reported for the first time in Guangdong Province. The male adults of these 5 species of fruitflies trapped most frequently from Shaoguan and Meizhou in Guangzhou Province were morphologically described. B.(B.) dorsalis was the most dominant species in Guangdong in both number and locations, followed by B.(Z.) cucurbitae which was just next to B.(Z.) dorsalis in number. B.(Z.) tau was found at all observation sites in Guangdong Province, and B. (Z.) scutellata was found only in Shaoguan and Meizhou. This survey would provide a basic understanding of fruit flies in Guangdong Province.