Disease occurrence Seedling disease: The diseases of vegetable seedlings mainly include rickets and blight. The two are often mixed in the seedbed, causing a large number of dead seedlings in severe cases. Gray mold: mainly occurs in greenhouse vegetables such as tomatoes and eggplants, and the weather conditions are conducive to the spread of the disease. Sclerotinia sclerotiorum: The disease mainly occurs on vegetables such as eggplant, green pepper, lettuce, etc., and it tends to increase year by year. Downy mildew: It occurs on lettuce in the field and in the greenhouse. It occurs lightly in the field, but it is common in greenhouses.
Prevention and control measures Agricultural control: timely clean the pastoral, clean the sick and timely plants and bring them out of the field, long-distance treatment, avoid throwing or dumping sick and disabled plants into the ditch to prevent cross-infection; strengthen greenhouse ventilation and cooling. Chemical control: Seed disinfection before sowing can reduce the occurrence of disease at seedling stage. In the early stage of the disease, the seedlings are immediately removed, and then 75% chlorothalonil WP800 ~ 1000 times solution or 50% Fumei double WP500 times solution is used for uniform spraying. It can be used for uniform spraying with 50% Suikeling WP1000 times liquid, which can effectively prevent various diseases such as gray mold, sclerotinia and early blight. 50% sterilized into a water-soluble powder 1000-1500 times for uniform spraying, can effectively prevent downy mildew.
Author: Li Miaomiao
Source: Farmers Daily
Prevention and control measures Agricultural control: timely clean the pastoral, clean the sick and timely plants and bring them out of the field, long-distance treatment, avoid throwing or dumping sick and disabled plants into the ditch to prevent cross-infection; strengthen greenhouse ventilation and cooling. Chemical control: Seed disinfection before sowing can reduce the occurrence of disease at seedling stage. In the early stage of the disease, the seedlings are immediately removed, and then 75% chlorothalonil WP800 ~ 1000 times solution or 50% Fumei double WP500 times solution is used for uniform spraying. It can be used for uniform spraying with 50% Suikeling WP1000 times liquid, which can effectively prevent various diseases such as gray mold, sclerotinia and early blight. 50% sterilized into a water-soluble powder 1000-1500 times for uniform spraying, can effectively prevent downy mildew.
Author: Li Miaomiao
Source: Farmers Daily
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