水稻烂秧病防治药剂筛选及应用

Screening of Fungicide for Controlling Rice Seedling Rot Disease

[目的]筛选防治水稻烂秧病的有效药剂。[方法]采用田间小区药效试验的方法,测定7种药剂对水稻烂秧病的防治效果。[结果]7种供试药剂对水稻烂秧病均具有一定的防治效果,其中4.9%甲霜灵·烯丙苯噻唑颗粒剂、0.8%精甲·嘧菌酯颗粒剂和500 g/L氟啶胺悬浮剂对水稻烂秧病具有优异的防治效果;进一步试验表明,4.9%甲霜灵·烯丙苯噻唑颗粒剂在30 g/m2剂量下对水稻烂秧病的防治效果可达90%以上。[结论]4.9%甲霜灵·烯丙苯噻唑颗粒剂对水稻烂秧病具有较好的防治效果,可以为防治水稻烂秧病的后续研究提供参考。

[Aims] This study aims to screen out fungicides for control of the rice seedling rot disease. [Methods] The field trial was conducted to test the control effects of 7 fungicides against the rice seedling rot disease. [Results] The results showed that all the 7 fungicides had the control effects against the rice seedling rot disease. And the metalaxyl·probenazole 4.9% GR, metalaxyl-M·azoxystrobin 0.8% GR and fluazinam 500 g/L SC had good control effects. The field trials of metalaxyl·probenazole 5% GR showed that the control effect at 30 g/m2 was over 90%. [Conclusions] The metalaxyl·probenazole 5% GR has a good control effect and it can provide references for controlling the rice seedling rot disease.