盲椿象在白三叶草田的发生动态及卵空间分布规律研究

近年来,盲椿象在北方不同植物上危害日益严重,而三叶草是我国重要的绿化植物。本试验于2010年6月至9月在青岛地区采用不同颜色色板粘缚法、网捕法以及染色方法,研究了盲椿象在白三叶草田发生的动态规律。结果表明,白三叶草田绿盲蝽的发生量较少;中黑盲蝽为优势种群,在调查时期内有3个发生高峰期,分别在7月7日、7月27日和9月7日左右,每10复网捕捉量分别为3.20头、4.92头、1.88头;绿盲蝽产卵主要产在白三叶草的3个叶柄交接处和3个叶柄上,这与植物组织的硬度、含水量以及营养均有一定关系。在三叶草田应用网捕法调查盲椿象发生数量比色板粘缚法更简单易行,且网捕数量较多,可起到测报兼防治作用。

Population Dynamics of Mirids and Spatial Distribution Law of Eggs in Trifolium repens Fields

As the mirids damaged different plants seriously in north of China in recent years and clover is an important virescence plant,the population dynamics of mirids in Trifolium repens fields were studied by different color card trap,net trap and egg dyeing methods from June to September in 2010 in Qingdao.The results showed that there were less Lygocoris lucorum in the fields of T.repens.Adelphocoris suturalis was the dominant species,and there were three occurrence peaks on July 7,July 27 and September 7 with the capture number of 3.20,4.92 and 1.88 respectively per 10 double nets.The eggs of L.lucorum mainly distributed on the three petioles and their junction of T.repens,which was connected with the hardness,water content and nutrition of the plants.Compared to color card trap,the net trap method was easier and more feasible,and could trap more mirids,which acted not only forecast but also controlling mirids.