SHI Zhenghao.Field Efficacy Test of 28% Ametoctradin · Fluopicolide Suspension Against Potato Late Blight[J].HEILONGJIANG AGRICULTURAL SCIENCES,2024,(05):44-48.[doi:10.11942/j.issn1002-2767.2024.05.0044]
28%唑嘧菌胺·氟吡菌胺悬浮剂防治马铃薯晚疫病田间药效试验
- Title:
- Field Efficacy Test of 28% Ametoctradin · Fluopicolide Suspension Against Potato Late Blight
- 文章编号:
- 8
- Keywords:
- ametoctradin; fluopicolide; potato late blight; chemical control
- 文献标志码:
- A
- 摘要:
- 为明确复配药剂对马铃薯晚疫病的田间防治效果及最佳使用剂量，本研究采用茎叶喷雾处理，定期调查的方法进行田间药效试验。结果表明，28%唑嘧菌胺·氟吡菌胺悬浮剂在210.0~315.0 g·hm-2的有效成分用量下，第一次施药10 d后对马铃薯晚疫病防效可达79.66%~87.56%，第二次施药10 d后对马铃薯晚疫病防效可达80.68%~88.60%，均显著优于对照药剂，且对应有效成分用量少于对照药剂；两次施药后5 d对马铃薯药害等级均为1.0，未见对马铃薯产生明显药害。比空白对照增产16.34%~24.28%，综合用药成本及效果，推荐有效成分用量为210.0~315.0 g·hm-2。28%唑嘧菌胺·氟吡菌胺悬浮剂能够有效防治马铃薯晚疫病并对马铃薯具有一定的增产效果和较好的安全性。
- Abstract:
- In order to determine the field control effect and optimal dosage of 28% ametoctradin and fluopicolide suspension on potato late blight, the field efficacy test was conducted by means of stalk and leaf spray treatment and regular investigation. The results showed that: Under the dosage of 210.0-315.0 g·ha-1, the control effect of 28% ametoctradin and fluopicolide suspension on potato late blight could reach 79.66%-87.56% after 10 days of the first application. 10 days after the second application, the control effect of potato late plague was from 80.68% to 88.60%, which was significantly better than that of the control agent, and the dosage of corresponding effective components was less than that of the control agent. After two rounds of application, the damage level to potato was 1.0 for 5 days, and no significant damage to potatoes was observed. Compared with the control group, the yield increase rate was 16.34%-24.28%. Considering the cost and effect of medication, the recommended dosage of active ingredients was 210.0-315.0 g·ha-1. The suspension of 28% ametoctradin and fluopicolide can effectively control potato late blight and has good safety for potato.
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备注/Memo
收稿日期：2023-12-13