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Field Efficacy Evaluation of 400 g/L Mefentrifluconazole·pyraclostrobin on Banana Leaf Spot
Cui Yiping, Peng Aitian, Song Xiaobing, Meng Xiangjie, Ling Jinfeng, Chen Xia
Field Efficacy Evaluation of 400 g/L Mefentrifluconazole·pyraclostrobin on Banana Leaf Spot
To effectively prevent and control banana leaf spot disease, and screen fungicides with good control efficacy, the authors conducted field trials against banana leaf spot disease in 2018 and 2019, using 400 g/L mefentrifluconazole·pyraclostrobin as a test agent. The stem-leaf spraying was carried out at the early stage of banana leaf spot disease, and the average control effect of 133.3 mg/kg of mefentrifluconazole·pyraclostrobin after 3 times was 74.08% and 74.54% in 2018 and 2019 year, respectively, which was significantly better than that of the 133.3 mg/kg of 400 g/L mefentrifluconazole, 166.7 mg/kg of pyraclostrobin and propiconazole in the control agent. And the average control effect of 200 mg/kg of 400 g/L mefentrifluconazole·pyraclostrobin after 3 times reached 79.68% and 79.93%. The results indicate that 400 g/L mefentrifluconazole·pyraclostrobin has a good effect on the prevention and treatment of banana leaf spot disease, and is an excellent fungicide for popularization and application in banana production areas.
banana / banana sigatoka disease / mefentrifluconazole·pyraclostrobin / efficacy evaluation {{custom_keyword}} /
表1 400 g/L氯氟醚菌唑·吡唑醚菌酯悬浮剂对香蕉叶斑病的田间防治效果(2018年) |
药剂名称 | 有效成分用量/ (mg/kg) | 第2次药后13 d | 第3次药后13 d | ||||
---|---|---|---|---|---|---|---|
平均防效/% | 平均病指+标准误 | 平均防效/% | 平均病指+标准误 | ||||
400 g/L氯氟醚菌唑·吡唑醚菌酯悬浮剂 | 100 | 63.8 | (8.06 +0.88)c | 67.02 | (7.96 +0.47)c | ||
133.3 | 66.16 | (7.53 +0.52)b | 74.08 | (6.25 +0.7)b | |||
200 | 70.63 | (6.54 +0.33)a | 79.68 | (4.9 +0.61)a | |||
400 g/L氯氟醚菌唑悬浮剂 | 133.3 | 67.14 | (7.31 +0.65)c | 74.27 | (6.21 +0.94)b | ||
250 g/L吡唑醚菌酯乳油 | 166.7 | 63.13 | (8.21 +0.49)b | 69.75 | (7.3 +0.39)bc | ||
250 g/L丙环唑乳油 | 166.7 | 65.22 | (7.74 +0.49)b | 72.44 | (6.65 +1.08)b | ||
空白对照 | - | - | (20.34+0.58)a | - | (25.25+0.79)a |
表2 400 g/L氯氟醚菌唑·吡唑醚菌酯悬浮剂对香蕉叶斑病的田间防治效果(2019年) |
药剂名称 | 有效成分用量/(mg/kg) | 第2次药后13 d | 第3次药后13 d | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
平均防效/% | 平均病指+标准误 | 平均防效/% | 平均病指+标准误 | |||||||||
400 g/L氯氟醚菌唑·吡唑醚菌酯悬浮剂 | 100 | 66.32 | (7.47 +0.19)c | 70.55 | (6.17 +0.06)c | |||||||
133.3 | 70.58 | (6.46 +0.35)b | 74.54 | (5.39 +0.26)a | ||||||||
200 | 74.56 | (5.09 + 0.38)a | 79.93 | (4.66 +0.29)a | ||||||||
400 g/L氯氟醚菌唑悬浮剂 | 133.3 | 65.48 | (7.52 +0.41)c | 70.35 | (6.33 +0.33)c | |||||||
250 g/L吡唑醚菌酯乳油 | 166.7 | 65.89 | (7.56 +0.41)c | 70.21 | (6.25 +0.18)b | |||||||
250 g/L丙环唑乳油 | 166.7 | 64.5 | (8.02 +0.12)d | 68.4 | (6.51 +0.64)b | |||||||
空白对照 | - | - | (22.33+0.2)a | - | (24.37+0.15)a |
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