This is an eggplant sclerotinia disease. Sclerotinia is one of the diseases caused by overwintering eggplants. It causes fruit decay and shedding, and can invade leaves, stems and other parts, and has a great impact on the yield. Control measures: First of all, pay attention to the ventilation and humidity in the field, and prevent excessive humidity. Second, pay attention to prevention and control of plant growth, timely removal of the old leaves, etc., to prevent field closure, improve ventilation. Finally, drug control, you can choose 50% of iprodione 800 times or 55% of Clodromycidin (Mai Friends) 4500 times spraying; culm infected, can be applied with the above agents, but must be scraped before application of the disease.
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