马铃薯田有翅蚜数量消长的研究

QUANTITATIVE CHANGE OF APHID WITH WINGS IN POTATO

蚜虫既可以汲取汁液危害马铃薯降低产量,又可以作为多种病毒的传毒媒介引起马铃薯退化,而某些种类的有翅蚜是病毒传播的主要蚜型,因此,有翅蚜的监测对蚜虫的综合防治意义重大。本试验采用黄皿诱蚜器,在黑龙江省呼兰地区进行了两年的监测。结果表明:有翅蚜初次迁入时期一般在6月份,2003年为6月16日,2002年为6月28日;有翅蚜数量,随温度、降雨、风等因素的变化而波动;有翅蚜高峰期2002年主要集中在9月上中旬,9月4日为高峰日,数量达4126头／2 d;2003年6月26日为高峰日,数量达760头／2 d。

Aphids not only reduce the potato's yields by deriving juice from leaves, but also bring to potato's degeneration as vector of viruses such as PLRV and PVY. Among them, some of aphids with wings are main types of transmission. So to monitor aphids with wings is very essential to prevent viral diseases. In this experiment, we have done two years monitoring dynamics of aphids with wings with Yellow Traps in Hulan, Heilongjiang province. The results showed that the first arrival of aphids with wings was in June, Junel6 in 2003 and June 28 in 2002. The quantity of Aphids with wings fluctuated and was affected by many factors, including temperature, humidity, precipitation, wind speed and so on. The maximum quantity was 4126 per two days on September 4, 2002, and was 760 per two days on June 26, 2003.