Winter melon is a common vegetable in our daily life. It is delicious and delicious, and is very popular among people. In the process of winter melon planting, some diseases will inevitably occur. Among them, cotton blight is a common one. This article will introduce the chemical control measures for winter melon blight disease for your reference.
Winter melon plague is mainly caused by near ripe fruits, leaves and stems. When the fruit is infected, the water-stained yellow-brown lesions are first appeared near the ground, and the diseased part is sunken. The white cotton flocculent is dense on the ground, and the diseased part or whole fruit rots. The leaves are infected, the lesions are yellowish brown, and the white mold is rotted. The stems are infected, and the lesions are green and wet and rot. The disease is suddenly caused by a sudden onset of a large number of rotten melons, and the loss is very large.
(1) Applying compost or fully decomposed organic fertilizer prepared by enzyme bacteria before planting melon and melon, and applying insufficient fertilizer; in the growing season, try to minimize or not apply quick-acting nitrogen fertilizer, and timely cultivate the loose soil in the seedling stage to Promote hair roots and protect the sputum, vines and vines in time after vines; try to water less during the growth period of melon and quarantine, and drain in time after heavy rain. Seriously practiced more than three years of rotation.
(2) It is found that the melon mites disease melons are removed in time, and they are carried out in the field for deep burial or manure. After pulling in the autumn, we should pay attention to clean the fields and plow the land in time.
(3) The early stage of the winter melon plague begins to spray 27 copper high suspending agent 600 times liquid or l:0·5-1:240 times Bordeaux mixture, 77 cocoa kills wettable micron powder 500 times liquid, in addition to spraying Or watering 72% gram or gram anti-linger, gram cream cyanide wettable powder 600 times liquid, 50 can be frosted copper WP 800 times liquid, 70 original ethyl phosphorus · manganese zinc wettable powder 500 times liquid, 72·2 %Pulke water 600 times solution, 58% metalaxyl · manganese zinc wettable powder 400-500 times liquid, 50% Paterson rich wettable powder 500 times liquid, 60% antimony · aluminum phosphate (DTM) wettability Powder 500 times liquid, 69% Anke manganese zinc wettable powder 1000 times liquid, 56 reliable mountain water dispersed micro-granules 700-800 times liquid, 70 liters of good liquid per 667m' spray, prevention and control 2 to 3 times. The drug was stopped 7 days before fruit picking. In addition, 3kg of copper sulphate per 667m' sprinkle before the watering in the hot rainy season in summer, after watering, the effect is obvious. The shed protection area can also be selected by the smoke method or the dust method, that is, 45% chlorothalonil aerosol at the beginning of the disease, 1300m250-300g, or 5% chlorothalonil dust, every 667mlkg, every 9 days or so. , continuous control 2 to 3 times.
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