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研究了荸荠白禾螟的生活习性、发生规律和防治方法 ,结果表明该虫以幼虫越冬 1a发生 4代 ,6月份为第 1代 ,7月份第 2代 ,3～ 4代在 8～ 10月份重叠发生。防治该虫的指标和适期为 75 0头 /hm2 蛾日后 3～ 5d。天敌优势种群为稻螟赤眼蜂和螟卵啮小蜂。药剂筛选表明 ,由久效磷、高效氯氰菊酯组成的复配剂 1号 (33 .5 % + 1.5 % )效果最好。采取围歼秧田 ,重治 3代的策略 ,3a来取得了良好的效果。将为害率控制在 1%～ 2 % ,并推广该技术 2 0 0 0hm2 以上。
The results showed that the larva had larvae overwintering la for 4 generations, the first generation in June, the second generation in July, and the third to fourth generation in August to October Overlap occurs. The control index and duration of the insect is 75 0 head / hm2 moth in the future 3 ~ 5d. The dominant populations of natural enemies were Trichogramma ostriniae and Bombyx mori. Pharmacological screening showed that the compound No. 1 (33.5% + 1.5%) composed of monocrotophos and alpha-cypermethrin was the best. Take around the foul seedling, heavy governance 3 generation strategy, 3a to achieve good results. The damage rate will be controlled at 1% ~ 2%, and promote the technology more than 2000hm2.