Occurrence and control of damping-off disease in greenhouse vegetable seedlings

The damping-off disease is a common disease in the seedling stage of the eggplant vegetables. After the onset of the disease, the seedlings on the ground have no obvious symptoms, and the seedlings suddenly fell to the ground and then died of greenish. Digging plants can see the base of the stem water stains, soft yellow. Sometimes the overturning disease suddenly occurs in a large area when the cover is suddenly exposed to the storm. It is an invasive disease caused by Pythium aphanidermata. It must be distinguished from physiological desiccation caused by low soil temperature and bed moisture.

To prevent the occurrence of damping-off disease, comprehensive prevention and control methods shall be adopted that are mainly based on agricultural measures and supplemented by chemical agents. Agricultural control mainly refers to the selection of disease-resistant varieties, no disease soil seedlings, strengthen ventilation, reduce humidity, increase phosphorus and potash fertilizer, prevent over-close planting, cloudy or cold days do not water and other management measures. The first step is to disinfect the bed soil, ie, 70% carbendazim 5g or 70% thiophanate-methyl 5g, first mix with 1kg of fine dry soil, and mix well with 14kg of fine dry soil. One-third of the soil is covered with soil and covered with the remaining soil after sowing. Followed by spraying control, with 75% chlorothalonil 1000 times or 70% of the enemy 1000 times enemy spray control effect is better.

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Organic Honey

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