5种药剂防治水稻纹枯病效果试验

Test of Control Efficacy of Five Medicaments on Controlling Rice Sheath Blight

水稻纹枯病在建瓯市徐墩镇发生日趋严重,为提高水稻纹枯病的防治效果,选用30%爱苗乳油、24%满穗悬浮剂、43%好立克悬浮剂、25%丙环唑乳油、20%井冈霉素可湿性粉剂等对水稻纹枯病进行药效试验。结果表明:每667m2用30%爱苗乳油15mL、24%满穗悬浮剂20mL防治纹枯病效果最佳,药剂对水稻生长安全且持效期长,如只喷施1次药剂的情况下,建议每667m2选用30%爱苗乳油15mL或24%满穗悬浮剂20mL。

Rice sheath blight at Xudun Town,Jian’ou City was increasingly serious in recent years.In order to improve control efficacy of rice sheath blight,efficacy test of 30%Armure EC,24%Pulsor SC 43%Ricket SC,25%Propiconazole EC and 20%validamycin was carried out.The results showed that the control efficacy of 15 mL 30%Armure EC and 20 mL 24%Pulsor SC per 667 m 2 reached highest level.Moreover,30%Armure EC and 24%Pulsor SC had safe effects and long persistence period on rice growth.If sprayed one time,it was suggested to spray 15 mL 30%Armure EC or 20 mL 24%Pulsor SC per 667 m 2.