Eggplant Gray Mold

The gray mold can occur during the seedling stage to the adult stage of eggplant, which mainly damages the leaves, stems and fruits. At the seedling stage, the cotyledon leaves die at the apex and then spreads to the young stem, causing the young stem to contract and become thin and easily broken. Semicircular to near-circular pale brown ring vein spots appear on the true leaves, and the leaves or stems of the late stage of the disease emerge as gray molds. The disease department rots. In the adult stage, the water-soaked large lesions form brown spots on the leaf margins, oval or nearly round yellowish rhinophyte spots appear on the fruit, depressions, dense gray mold layer above. Bacteria like warm and humid environment, temperature 20 ~ 28 °C, relative humidity more than 95% easy to disease, the first flowering period to the fruit setting is most susceptible, the incubation period of 5 to 7 days. The crops with gray mold are connected with crops, continuous cropping, low-lying land, poor drainage, poor planting, poor ventilation and light transmission, unobstructed air in greenhouses or greenhouses, high humidity, and excessive nitrogen fertilizer application. In case of continuous rain for more than 3 days in early spring, the incidence of low temperature and lack of light is heavy.
Prevention should be enhanced ventilation and dehydration, removal of diseased fruit and diseased leaves. In the early spring and rainy days, 45% of E-fuling 250g or 50% of chlorothalonil dust agent 1000g per mu is used to protect the land, and once a week, 2 to 3 times in succession; 50% Sucrose WP 1000 at other times ~1200 times solution, 50% Nurelyle wettable powder 1000 times, 40% Shijiale suspending agent 800 times, 65% Pyomelophane wettable powder 600 ~ 800 times, 40% pyrimethanil wettable powder 600 times Liquid, 40% sclerotin net wettable powder 500 times liquid, 50% benomyl powder 1500 times liquid, 50% acetaminophen wettable powder 600 to 800 times liquid spray, once every 7 to 10 days, continuous control 3 ~ 4 times.

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