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Is our farmer's buckwheat head so sick? Experts, what medicine is the best? What is the main disease? Can I spray zinc thiazole?
Spraying epidemic diseases with 52.5% oxadiazon cymoxanil water dispersible granules 2500 times, 58% metsulfuron-methyl manganese zinc wettable powder 600 times, 72% metsulfuron-methyl manganese zinc wettable powder 600 times, 69% alkenyl manganese zinc wettable powder 600 times or 50% azoxystrobin water dispersible powder 2000 times. It has good control effect.