Study on the Control Effect of Pyraclostrobin + Tebuconazole on Rice Sheath Blight
Abstract：To clarify the control effect of pyraclostrobin + tebuconazole on rice sheath blight and its yield-increasing effect, an experiment was conducted in the paddy fields of mechanized transplanting late rice in 2024. The results showed that the control effect of 42% pyraclostrobin + tebuconazole suspension agent at 28-35 mL/667m2 was comparable to that of the control agent 325 g/L benzovindiflupyr + pyraclostrobin suspension agent at 30 mL/667m2, but it had a certain advantage in yield increase. The 42% pyraclostrobin + tebuconazole suspension agent at 35 mL/667m2 applied during the tillering stage and heading stage showed the best control effect on sheath blight, with a control efficiency of 92.08% 14 days after the first application and 97.39% 13 days after the second application. The yield was the highest, reaching 530.26 kg/667m2, with a yield increase of 24.95%. In conclusion, applying 42% pyraclostrobin + tebuconazole suspension agent at 28-35 mL/667m2 during the tillering and heading stages can effectively control sheath blight, providing technical support for stable rice production and increased income.
Keywords：pyraclostrobin + tebuconazolerice sheath blightcontrol effect
Publication Date：2025-10-15
Online Publishing Date：2025-11-07(First online date of this platform, not the publication date of the document)
Pages：3( 30-31,44 )