Melon measles, commonly known as “bad winter melonâ€, is a major disease on gourd, which can reduce production by 30%-50% in severe cases. Mushroom Mushroom disease occurs suddenly when the fruit is nearing maturity. Fruit damage, first in contact with or near the ground part of the yellowish-brown water stains slightly sunken lesions, when the conditions are suitable, the lesion quickly expanded, the surface dense cotton flocculent white mold layer, disease melon rot odor. Stems and leaves can also suffer. The lesions on the leaves are yellowish-brown and produce a white moldy layer that rots when wet; the lesions on the stems are dark green at first and then wet and rot, causing the upper stems to wither.
Prevention and treatment of melon Mung disease should take prevention-based, comprehensive prevention measures. (1) Agricultural control. More than 2-3 years of rotation with non-guatem crops; seedlings timely slashing loose soil, promote hair roots, make plants grow robust, enhance disease resistance; growth phase appropriate control of fertilizer and water, prevent flooding irrigation, especially melon " After the "frosting," watering should be stopped. After the rain, attention should be paid to timely drainage. The central diseased plant and the diseased melon should be removed in time and deeply buried. Disperse the quicklime next to the diseased plant and its surrounding healthy plants to control the spread. (2) Chemical control. At the time when the disease occurs around the year or when it first started, use 1:0.5:240 Bordeaux mixture, 80% dexamethasone 600-800 times, 75% chlorothalonil 500-750 times, and 40% ethyphosphinate 300 times. Liquid, 25% thioredoxin 800-1000 times or 200ppm chloramphenicol solution, sprayed once every 5-7 days, even sprayed 2-3 times, the effect is good.
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