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国槐尺蠖(Sophora japonica Linn)在三门峡地区一年发生3代,已成为国槐、龙爪槐的最主要、为害最严重的一种食叶害虫。发生严重时常在一周内将全树树叶吃光,并吐丝排粪,严重影响树木生长及环境卫生。为了有效地控制国槐尺蠖的为害,2008~2012年笔者对国槐尺蠖发生规律及防治技术进行了较为详细的研究。现将研究结果报告如下。国槐尺蠖形态鉴别特征1.1成虫雄虫体长14~17mm翅展30~45mm。雌虫体长12~15mm。触角丝状,长约为前翅的2/3。前翅亚基线及中横线深褐色,近前缘外均向外转弯成一锐角。亚外缘线黑褐色,致密排列成3列长形斑块,近前缘处有一褐色三角形斑块。
Sophora japonica Linn occurs in the Sanmenxia area for three generations a year and has become the most important and devastating leaf-feeding insect pest of Sophora japonica and Longjiaohuai. In serious cases, the whole tree leaves are often eaten within a week, and silk excretion is excreted, which seriously affects tree growth and environmental hygiene. In order to effectively control the damage of Sophora japonica Thunb., From 2008 to 2012, the author conducted a more detailed study on the occurrence rules and control techniques of Sophora japonica Thunbergii. The research results are reported below. Sophora japonica Scutellaria morphogenetic characteristics 1.1 adult male body length 14 ~ 17mm wingspan 30 ~ 45mm. Female body length 12 ~ 15mm. Antenna filiform, about 2/3 of the forewing. Forewing sub-base line and dark brown in the horizontal line, the outer edge of the front edge are turned into an acute angle. Sub-rimmed dark brown, densely arranged into three long plaques, a brown triangle near the front edge of the plaque.