段小莉, 马 超, 张力卜, 王佰涛, 李佳浩, 徐 梁, 王腾达, 徐 军*, 陈 昶*.咪鲜胺、氟环唑及其混配对水稻纹枯病室内毒力及田间防效[J].植物保护,2018,44(4):221-225. |
咪鲜胺、氟环唑及其混配对水稻纹枯病室内毒力及田间防效 |
Indoor toxicity and field effects of mixtures of prochloraz and epoxiconazole on rice sheath blight |
投稿时间:2017-11-13 修订日期:2018-01-08 |
DOI:10.16688/j.zwbh.2017433 |
中文关键词: 水稻纹枯病 咪鲜胺 氟环唑 联合毒力 田间药效 |
英文关键词:rice sheath blight prochloraz epoxiconazole co-toxicity field control effect |
基金项目:国家重点研发计划(2016YFD0200500) |
作者 | 单位 | 段小莉, 马 超, 张力卜, 王佰涛, 李佳浩, 徐 梁, 王腾达, 徐 军*, 陈 昶* | 中国农业科学院植物保护研究所, 北京中保绿农科技集团有限公司, 北京 100193 |
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中文摘要: |
为筛选出对水稻纹枯病高效的新配方药剂及剂量, 以咪鲜胺和氟环唑混配进行室内抑菌活性、持效期和田间药效测定。采用孙云沛法进行室内联合毒力测定, 结果表明, 供试的5种混配组合对水稻纹枯病菌的联合毒力均表现为增效, 综合联合毒力、成本和持效期等因素, 选择30%咪鲜胺·氟环唑微乳剂(2∶1)为最佳田间应用配比。田间药效试验亦表明, 30%咪鲜胺·氟环唑微乳剂(20%+10%)158~180 g/hm2的用量对水稻纹枯病有较好的防治效果。 |
英文摘要: |
This study aims to explore control efficacy and dosage of prochloraz and epoxiconazole against rice sheath blight through indoor and field trails. The effect of co-toxicity was evaluated by the method of Sun-Johnson and the field trails were performed. The results showed that the mixtures of prochloraz and epoxiconazole had obvious synergism. Comprehensively considered the co-toxicity coefficient, cost and duration of the compounding agent, the ratio 2∶1 of prochloraz and epoxiconazole was the best field application ratio. The field trials showed that rice sheath blight can be effectively controlled by spaying prochloraz and epoxiconazole (20%+10%) mixture 30% ME at 158-180 g/hm2 in the early stage of morbidity. |
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