【摘要】 [目的]进一步明确20%烯肟菌胺?戊唑醇悬浮剂对梨黑星病的防治效果并推广应用于生产实践。[方法]20%烯肟菌胺?戊唑醇悬浮剂200、100、50 mg/L三个处理喷施,防治梨黑星病,以250 g/L嘧菌酯悬浮剂200 mg/L、5%己唑醇微乳剂50 mg/L等药剂为对照,另设不喷药的空白对照。[结果]20%烯肟菌胺.戊唑醇悬浮剂对梨黑星病具有较好的防治效果,在100~200 g a.i./hm2的处理剂量下,间隔10~l5 d,在生长季连续施药4~5次,能够有效控制梨黑星病,防治效果优于腈菌唑乳油、代森锰锌可湿性粉剂等常规药剂,且对供试作物安全。[结论]20%烯肟菌胺.戊唑醇悬浮剂可有效控制梨黑星病,有较高的推广应用价值。更多还原

【Abstract】 The aim is to further confirm the controlling efficiency of the SYP-1620·tebuconazole 20% SC against pear scab and to be applied widely to production practice.[Methods] Three spraying dosages 200,100 and 50 mg/L of SYP-1620·tebuconazole 20% SC were used in the test.azoxystrobin 250 g/L SC and hexaconazole 5% ME etc were used as contrasts and control was set without spaying any fungicides.[Results] The results showed that SYP-1620·tebuconazole 20% SC provided good control effect against pear scab at the rate of 100 to 200 g a.i./ha,applied 4 to 5 times with 10-15 days interval,better than myclobutanil and mancozeb etc,and no crop injury was observed.[Conclusions] The SYP-1620·tebuconazole 20% SC has good control effect on the pear scab,which is valuable for extension in pear production.更多还原