25%吡唑醚菌酯&#183;毒氟磷悬浮剂对火龙果溃疡病的防治效果研究

韦洁玲; 许哲; 李凤芳; 杨丹娇; 玉珍珠

doi:10.13718/j.cnki.zwys.2021.03.006

植物医学

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25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果研究

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韦洁玲, 许哲, 李凤芳, 等. 25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果研究[J]. 植物医学, 2021, (3): 29-35. doi: 10.13718/j.cnki.zwys.2021.03.006

引用本文:

韦洁玲, 许哲, 李凤芳, 等. 25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果研究[J]. 植物医学, 2021, (3): 29-35. doi: 10.13718/j.cnki.zwys.2021.03.006

WEI Jie-ling, XU zhe, LI Feng-fang, et al. Control Efficacy of 25% Pyraclostrobin·Dufulin Suspension Concentrate on Pitaya Canker[J]. PLANT HEALTH AND MEDICINE, 2021, (3): 29-35. doi: 10.13718/j.cnki.zwys.2021.03.006

Citation:

WEI Jie-ling, XU zhe, LI Feng-fang, et al. Control Efficacy of 25% Pyraclostrobin·Dufulin Suspension Concentrate on Pitaya Canker[J]. PLANT HEALTH AND MEDICINE, 2021, (3): 29-35. doi: 10.13718/j.cnki.zwys.2021.03.006

25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果研究

广西田园生化股份有限公司, 南宁 530007

详细信息

作者简介:
韦洁玲,硕士,副高级农艺师,中级农业经济师,主要从事杀菌剂的研发和推广工作.E-mail:273024289@qq.com .

中图分类号: S436.67

Control Efficacy of 25% Pyraclostrobin·Dufulin Suspension Concentrate on Pitaya Canker

Guangxi Tianyuan Biochemical Co., Ltd, Nanning 530007, China

摘要: 火龙果溃疡病是世界性真菌病害之一，严重危害火龙果的产量和品质.本研究通过室内毒力测定、离体枝条试验和大田试验评价了25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果.结果表明，25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病菌的毒力最高（EC₅₀值为1.628 mg/L），其毒力略高于单剂25%吡唑醚菌酯悬浮剂（EC₅₀值为3.822 mg/L），显著高于单剂20%毒氟磷悬浮剂（EC₅₀值为345.370 mg/L）.在离体试验中，施药后6 d，25%吡唑醚菌酯·毒氟磷悬浮剂的预防性和治疗性防效分别为65%和40%，与单剂25%吡唑醚菌酯悬浮剂（防效分别为57%和40%）差异不显著.大田试验中，25%吡唑醚菌酯·毒氟磷悬浮剂的预防性和治疗性防效分别为73%和52%，预防效果优于治疗效果.本研究为今后25%吡唑醚菌酯·毒氟磷悬浮剂田间防控火龙果溃疡病提供数据支撑.
- 毒氟磷 /
- 火龙果溃疡病 /
- 毒力测定 /
- 大田试验 /
- 防治效果
Abstract: Pitaya canker,a worldwide fungal disease,seriously damages the yield and quality of pitaya. In this study,the control efficacy of 25% pyraclostrobin dufulin suspension concentrate (SC) against pitaya canker disease wasevaluated by laboratory toxicity test,in vitro branch test and field trial. The results showed that 25% pyraclostrobin dufulin SC exhibited excellent activity on pitaya ulcer bacteria,with an EC₅₀ value of 1.628 mg/L,which was better than that of single dose treatments of 25% pyraclostrobin SC (3.822 mg/L) or of 20% dufulin SC (345.370 mg/L). In the in vitro test,the prevention and treatment efficacy of 25% pyraclostrobin dufulin SC were 65% and 40%,respectively,which were higher than those of single dose 25% pyraclostrobin SC(57% and 29%). In the field trial,the preventive and treatment efficacy of 25% pyraclostrobin dufulin SC on pitaya canker were 73% and 52%,respectively,a better result than that of single dose25% pyraclostrobin SC.
- dufulin /
- pitaya canker /
- toxicity test /
- field trial /
- control efficacy .

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25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果研究

作者简介: 韦洁玲,硕士,副高级农艺师,中级农业经济师,主要从事杀菌剂的研发和推广工作.E-mail:273024289@qq.com
广西田园生化股份有限公司, 南宁 530007

收稿日期: 2021-03-17

基金项目:

关键词:

摘要: 火龙果溃疡病是世界性真菌病害之一，严重危害火龙果的产量和品质.本研究通过室内毒力测定、离体枝条试验和大田试验评价了25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病的防治效果.结果表明，25%吡唑醚菌酯·毒氟磷悬浮剂对火龙果溃疡病菌的毒力最高（EC₅₀值为1.628 mg/L），其毒力略高于单剂25%吡唑醚菌酯悬浮剂（EC₅₀值为3.822 mg/L），显著高于单剂20%毒氟磷悬浮剂（EC₅₀值为345.370 mg/L）.在离体试验中，施药后6 d，25%吡唑醚菌酯·毒氟磷悬浮剂的预防性和治疗性防效分别为65%和40%，与单剂25%吡唑醚菌酯悬浮剂（防效分别为57%和40%）差异不显著.大田试验中，25%吡唑醚菌酯·毒氟磷悬浮剂的预防性和治疗性防效分别为73%和52%，预防效果优于治疗效果.本研究为今后25%吡唑醚菌酯·毒氟磷悬浮剂田间防控火龙果溃疡病提供数据支撑.

English Abstract

Control Efficacy of 25% Pyraclostrobin·Dufulin Suspension Concentrate on Pitaya Canker

广西田园生化股份有限公司, 南宁 530007

Received Date: 2021-03-17

Keywords:

Abstract: Pitaya canker,a worldwide fungal disease,seriously damages the yield and quality of pitaya. In this study,the control efficacy of 25% pyraclostrobin dufulin suspension concentrate (SC) against pitaya canker disease wasevaluated by laboratory toxicity test,in vitro branch test and field trial. The results showed that 25% pyraclostrobin dufulin SC exhibited excellent activity on pitaya ulcer bacteria,with an EC₅₀ value of 1.628 mg/L,which was better than that of single dose treatments of 25% pyraclostrobin SC (3.822 mg/L) or of 20% dufulin SC (345.370 mg/L). In the in vitro test,the prevention and treatment efficacy of 25% pyraclostrobin dufulin SC were 65% and 40%,respectively,which were higher than those of single dose 25% pyraclostrobin SC(57% and 29%). In the field trial,the preventive and treatment efficacy of 25% pyraclostrobin dufulin SC on pitaya canker were 73% and 52%,respectively,a better result than that of single dose25% pyraclostrobin SC.