摘要
通过室内毒力测定与田间试验相结合的方法,研究了不同药剂对牡丹黑斑病的毒力及田间防效,结果表明,室内毒力30%醚菌·啶酰菌SC、22%嘧菌酯·戊唑醇SC、32.5%苯甲·嘧菌酯SC、38%恶霜嘧铜菌酯SC对牡丹黑斑病病菌具有较强毒力,相关系数r≥0.8,可见菌丝生长速率与药剂浓度高度相关;不同药剂对牡丹黑斑病病菌的田间药效试验表明,在牡丹黑斑病发生初期,使用22%嘧菌酯·戊唑醇SC2000倍、30%醚菌·啶酰菌SC 1500倍、32.5%苯甲·嘧菌酯SC 1500倍、38%恶霜嘧铜菌酯SC 1500倍可以有效地控制病害的发生,防效可以达78-88%。
By the method of indoor toxicity measurement combined with field trials, researched the efficacy of different fungicides on the peony leaf blotch disease. The results showed that the indoor toxicity of Kresoximmethyl-Boscalid 30% SC, as well as Azoxystrobin· Tebueonazole 22% SC, Difenoeonazole· Azoxystrobin 32.5% SC and Oxadixyl.mancozeb. Azoxystrobin 38% SC had high-toxicity, and the correlation coefficient r≥ 0.8, which showed that growth rate of ropes was highly related with the concentration of fungicides. The efficacy of field trials of different fungicides on peony leaf blotch disease showed, in the initial period of the disease, the provision of Azoxystrobin-Tebuconazole 22% SC 2000×, as well as Kresoxim-methyl- Boscalid 30% SC 1500×, Difenoconazole. Azoxystrobin 32.5% SC 1500×, and Oxadixyl.mancozeb· Azoxystrobin 38% SC 1500×, could achieve the control of the disease with prevention and cure effect of 78-88%.
作者
刘玉兰
LIU Yulan(Jilin Agricultural Science and Technology University School of Plant Science, Jilin 132101)
出处
《吉林农业科技学院学报》
2016年第3期1-3,共3页
Journal of Jilin Agricultural Science and Technology University
关键词
牡丹黑斑病
室内毒力
田间药效
防效
peony leaf blotch disease
indoor toxicity
field efficacy
prevention and cure effect
