防治草莓炭疽病的增效药剂组合筛选及效果评价
Screening and evaluation of synergistic combination for strawberry anthracnose control
付浩然 1王风超 1安梅荣 2武冲 3郭钰华 1王红艳1
作者信息
- 1. 山东农业大学植物保护学院,山东泰安 271018
- 2. 泰安市岱岳区天平街道办事处,山东泰安 271000
- 3. 山东省果树研究所,山东泰安 271000
- 折叠
摘要
采用菌丝生长速率法测定了 5种杀菌剂对草莓炭疽病菌的室内毒力,将2种抑菌效果好的杀菌剂复配筛选增效配比,并在温室验证了其防治效果和对草莓植株的影响.结果表明,吡唑醚菌酯和苯醚甲环唑对草莓炭疽病菌均表现出良好的抑菌效果,EC50值分别为0.80 mg/L和6.33 mg/L;吡唑醚菌酯和苯醚甲环唑2个配比的增效系数分别是0.70和1.51,表现为相加或增效作用,其中2∶1配比的共毒系数最大.在设施条件下,移栽时用30％苯醚甲环唑·吡唑醚菌酯悬浮剂(吡唑醚菌酯和苯醚甲环唑2∶1)稀释1 500～2 000倍蘸根处理,对草莓炭疽病具有良好的防治效果,同时对草莓生长无负面影响.
Abstract
The indoor toxicity of five fungicides against strawberry anthracnose pathogen was measured using the mycelial growth rate method.Two fungicides with excellent effect were compoun-ded to screen the synergistic ratios,and the control effect with the maximum co-toxicity coefficient was verified in greenhouse.The results showed that both difenoconazole and pyraclostrobin exhibited good inhibitory effects on strawberry anthracnose,and the EC50 values were 0.80 mg/L and 6.33 mg/L,respectively.The synergistic coefficients of difenoconazole and pyraclostrobin were 0.70 and 1.51,respectively.The co-toxicity coefficient of 2:1 ratio was the best.In greenhouse,diluted 1 500～2 000 times with a 30％difenoconazole·pyraclostrobin suspension(pyraclostrobin and difenoconazole 2:1)and treated with root dipping during transplantation had a good control effect on strawberry anthracnose and had no negative impact on strawberry growth.
关键词
草莓炭疽病/吡唑醚菌酯/苯醚甲环唑/增效Key words
strawberry anthracnose/pyraclostrobin/difenoconazole/synergism引用本文复制引用
基金项目
国家重点研发计划(2023YFD1401200)
山东省重点研发计划(2022CXPT017)
出版年
2024
国家科技期刊平台
NSTL
万方数据