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2023 Volume 2 Issue 3
Article Contents

SUN Taian, ZHOU Wenjie, LI Keqiang, et al. Effects of Different Medicament on the Control and Safety of Sphaceloma fawcettii in Mountain Orange Garden[J]. PLANT HEALTH AND MEDICINE, 2023, (3): 59-64. doi: 10.13718/j.cnki.zwyx.2023.03.006
Citation: SUN Taian, ZHOU Wenjie, LI Keqiang, et al. Effects of Different Medicament on the Control and Safety of Sphaceloma fawcettii in Mountain Orange Garden[J]. PLANT HEALTH AND MEDICINE, 2023, (3): 59-64. doi: 10.13718/j.cnki.zwyx.2023.03.006

Effects of Different Medicament on the Control and Safety of Sphaceloma fawcettii in Mountain Orange Garden

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  • Received Date: 08/04/2023
  • MSC: S482.2; S436.661

  • Citrus scab is a common, serious and difficult to control fungal disease in mountain citrus orchard southern China. In order to screen the safe, efficient, economical and applicable agents for prevention and control of citrus scab, seven high efficiency and low toxicity bactericides, pydiflumetofen, difenoconazole, pydiflumetofen·difenoconazole, pyraclostrobin·me-triam, tebuconazole·SYP-1620, picoxystrobin, mancozeb, were selected as the test agents to carry out the field efficacy test according to the guidelines for field efficacy test of fungicides. The test results show that except for 80% mancozeb WP, the control effects of the other six medicaments were higher than 75%. Among them, 60% pyraclostrobin·me-triam WG had the best control effect of 82.82%, and followed by 250 g/L picoxystrobin SC, 18% pydiflumetofen·difenoconazole SC, 20% Tebuconazole·SYP-1620 SC, and 200 g/L pydiflumetofen SC, with the control effects of 82.82%, 81.25%, 80.33% and 80.14%, respectively. These five medicaments are suitable for large-scale application in citrus production. All the tested medicaments had no adverse effect on the safety of citrus.
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Effects of Different Medicament on the Control and Safety of Sphaceloma fawcettii in Mountain Orange Garden

Abstract: Citrus scab is a common, serious and difficult to control fungal disease in mountain citrus orchard southern China. In order to screen the safe, efficient, economical and applicable agents for prevention and control of citrus scab, seven high efficiency and low toxicity bactericides, pydiflumetofen, difenoconazole, pydiflumetofen·difenoconazole, pyraclostrobin·me-triam, tebuconazole·SYP-1620, picoxystrobin, mancozeb, were selected as the test agents to carry out the field efficacy test according to the guidelines for field efficacy test of fungicides. The test results show that except for 80% mancozeb WP, the control effects of the other six medicaments were higher than 75%. Among them, 60% pyraclostrobin·me-triam WG had the best control effect of 82.82%, and followed by 250 g/L picoxystrobin SC, 18% pydiflumetofen·difenoconazole SC, 20% Tebuconazole·SYP-1620 SC, and 200 g/L pydiflumetofen SC, with the control effects of 82.82%, 81.25%, 80.33% and 80.14%, respectively. These five medicaments are suitable for large-scale application in citrus production. All the tested medicaments had no adverse effect on the safety of citrus.

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