论文部分内容阅读
通过灯诱和田间系统调查以及长翅型雌虫卵巢解剖,研究了山东济宁灰飞虱Laodelphaxs triatellus(Fallén)在灯下、麦田和秧田的种群消长动态及虫源性质。运用GrADS和ArcGIS分析了2009年6月7日迁入峰和2010年6月15日迁出峰的天气学背景,并运用HYSPLIT轨迹分析平台模拟了这2个时期灰飞虱的迁飞路径。结果表明:(1)2009年6月7日、8日,2010年6月3日至7日为济宁灰飞虱的迁入高峰期;2009年6月2日至4日、9日,2010年6月8日,6月15日至18日为济宁灰飞虱的迁出高峰期。(2)回推轨迹分析显示2009年6月7日迁入济宁的灰飞虱的虫源地主要为江苏省宿迁市沭阳县和泗洪县及丹阳市,而顺推轨迹分析显示2010年6月15日济宁灰飞虱迁出可能降落于辽宁省朝阳市喀喇沁左翼蒙古族自治县、大连市与丹东市交界及朝鲜江原道。(3)降雨是导致灰飞虱迁入或迁出降落的最主要因子,灰飞虱降落于降水区的边缘。
The population dynamics and pest origin of Laodelphaxs triatellus (Fallén) of Laodelphaxs trimerisphalus (Fallén) in Jining, Shandong province were studied by light trapping and field investigation and ovary dissection of winged females. Using GrADS and ArcGIS, the climatic background of the June 7, 2009 migration peak and the June 15, 2010 migration peak were analyzed. The migration path of Laodelphax striatellus was simulated using the HYSPLIT trajectory analysis platform. The results showed as follows: (1) June 7, 2009 and June 8, 2009, and June 3 to June 7, 2010, as the peak of the migration of Laodelphax striatellus in Jining; June 2 to April 4, 2009, 2010 June 8, June 15 to June 18 for the removal of Laodelphaxine Jining peak. (2) Backward trajectory analysis shows that the source of Laodelphax striatellus that moved into Jining on June 7, 2009 was mainly Shuyang County and Sihong County and Danyang City in Suqian City, Jiangsu Province. However, the trajectory analysis showed that in 2010 On May 15, the removal of the Laodelphax striatellus may land at the junction of the Autonomous County of the Left Khalaqin, Chaoyang, Liaoning, Dandong and the Gangwon Province of North Korea. (3) Rainfall is the most important factor that causes the SBPH to move in or out, and the SBPH landed on the edge of the precipitation area.