Cucumber damping-off disease mainly damages the eggplant, cucumber and other seedlings. The base of the diseased seedlings is water-stained at the early stage of disease, and the diseased parts of the disease are rotted at the late stage, causing the seedlings to suddenly fall to the ground. Due to the development of the disease, the rhizomes are dry and only a few individuals start to develop at the beginning, and the disease can be fully developed within 3 to 5 days. When the humidity is high, it causes a blight. The pathogen is very rotgenic and there are many soils with high organic matter content and can survive for a long time. Low soil temperature, poor ventilation, and lack of light are conducive to growth and reproduction, leading to damping-off.
Control methods 1. Seedbed prevention, with transplanting spirit 1 to 2 ml per square meter dilute 2000 times spray bed or 25% metalaxyl 9 g plus 70% mancozeb 1g sow before planting foot water Face to face. Less watering prior to emergence controls temperature and humidity. 2. In the early onset of the field, use 30% hymexazol WP 800 times, 72.2% Prolacc 600 times, 64% WP WP 600 to 800 times, and 68% Jinlei Dispersant 600 to 800 times Conduct prevention and treatment. In short, we should focus on prevention before sowing and take preventive measures.
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