50%氯虫苯甲酰胺悬浮种衣剂对水稻二化螟的田间防效研究

Field Study on the Control Effect of 50% Chlorantraniliprole Suspended Seed Coating Agent on Rice Chilo suppressalis（Walker）

摘要: 文章对50%氯虫苯甲酰胺悬浮种衣剂对水稻二化螟的田间防治效果进行试验分析，于2021年采用种子包衣法在武冈市进行田间药效试验。结果表明：50%氯虫苯甲酰胺悬浮种衣剂药种比10 mL/0.067 hm²剂量对二化螟防治效果最好，持效期最长，在播后56 d防效仍达90.76%，产量分别比对照药剂、农户自防和空白对照增加了4.2%、6.7%和20.5%。

Abstract: This paper analyzed the field efficacy of 50% chlorantraniliprole suspension seed coating agent against rice Chilo suppressalis（Walker）. In 2021, the seed coating method was used in Wugang City for field efficacy test. The results showed that 50% chlorantraniliprole suspension seed coat had the best control effect on Chilo suppressalis（Walker） with the dosage of 10 mL/0.067 hm~2 and the longest duration, and the control effect was still 90.76% on 56 d after sowing. The yield was increased by 4.2%, 6.7% and 20.5%compared with the control, farmer’s self-defence and blank control, respectively.