河南省重要实蝇的种群动态监测

Monitoring on the population dynamics of major fruit flies in Henan province

2014-2018年,在河南省选择9个地市39个监测点,针对实蝇类检疫性有害生物成虫开展诱捕监测,并进行种群动态分析。监测结果表明,39个监测点诱捕到的5种实蝇中,以具条实蝇数量最多,占诱捕总数的33.36%;其次为橘小实蝇和南亚果实蝇,分别占诱捕总数的24.17%和21.36%;再次为瓜实蝇,占9.53%;三点棍腹实蝇诱捕数最少,仅占4.84%。具条实蝇、南亚果实蝇、瓜实蝇与三点棍腹实蝇的发生高峰期均在7-9月份;橘小实蝇发生稍晚,高峰期在8-10月份,与其寄主的收获期基本一致。

From 2014 to 2018,39 monitoring sites in 9 cities in Henan province were selected to monitor adults of the quarantine fruit flies by trapping and their population dynamics was analysed.The results showed that among 5 species of fruit flies trapped at 39 monitoring sites,Zeugodacus scutelltat(Hendel)had the largest number,accounting for 33.36%of the total number;followed by Bactrocera dorsalis(Hendel),Z.tau(Walker)and B.cucurbitae(Coquillett),accounting for 24.17%,21.36%and 9.52%,respectively;Dacus trimacula(wang)had the least number,accounting for only 4.84%.Peak periods of the four fruit flies of Z.scutelltat,Z.tau,B.cucurbitae and the D.trimacula were from July to September.B.dorsalis occurred relatively lately,with peak from August to October,which was consistent with the harvest period of the host.