二点委夜蛾属鳞翅目夜蛾科, 2011年7月9日中央电视台新闻联播首次报告.该虫在山东省济宁、泰安、枣庄等地夏玉米,尤其以小麦套播的玉米田发生重,主要以幼虫躲在玉米幼苗周围的碎麦秸下或在3~5厘米的表土层危害,平均每株有虫2头,多的达20头.危害株率一般在5%,严重地块达20%.由于该虫潜伏在玉米田的碎麦秸下危害玉米根茎部,一般喷雾难以奏效.

Objective] The aim was to clear control effect of 3% florasulam · carfentrazone suspended emulsion against broadleaf weeds in wheat field and safety to wheat.[Method] We studied the control effect of 3%florasulam· carfentrazone suspended emulsion against broadleaf weeds in wheat field and safety to wheat by plot test.[ Result] The 3% florasulam · carfentrazone suspended emulsion applied at 7.2-18.0 g a.i./hm2 had good control effect on Descurainia sophia, Capsella bursa-pastoris and Galium aparine, and the plant control effect and fresh weight control effect in 40 days after treatment were 79.66%-93.26% and 82.19%-94.53%, respectively, furthermore it was safe to wheat. [Conclusion] The results provide theoretical basis for the promotion of 3% florasulam· carfentrazone suspended emulsion in large area.