Potato Late Blight Control Methods
Before and after the flowering of the potato, after the central diseased plant was found in the field, the deep burial was immediately removed and sprayed with medicament for prevention and treatment. Can use Kelu 100g/mu evenly sprayed in the whole field to prevent and prevent prevention and control. Use 40 grams per acre to spray the spraying interval of 5-10 days. Use 7-10 days under normal weather conditions. Medication, 25% metalaxyl WP 800 times, or 65% dexamethasone WP 500 times, 64% WP WP 500 times, 40% EB aluminum WP 500 times, 75% chlorothalonil WP 600-800 times spray. Spray once every 7-10 days, spraying 2-3 times. If there is little rain, the number of days between spraying can be appropriately extended.
In high humidity and rainy conditions, it should be administered once every 5 to 7 days. According to the size of the risk of illness can be adjusted to adjust the number of medication.
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