As the weather warms up, the shed's room temperature and humidity are more suitable for the occurrence and spread of diseases. According to the survey, tomato leaf mold, gray mold and cucumber target spot disease, and gray mold disease are serious. The sickbed rate, diseased plant rate, diseased leaf rate, and diseased fruit rate rose rapidly and the incidence was severe. In view of the serious nature of the current disease, vegetable farmers should strengthen prevention and control, control their spread and ensure fruit and vegetable harvest. The prevention measures are as follows: Agricultural control 1. Timely removal of diseases and diseases of diseased leaves, centralized destruction and reduction of proliferation. 2. The use of ground film cultivation, film watering, reduce the humidity within the greenhouse, effectively control the occurrence of gray mold. 3. In time pruning squatting, removal of the old leaves. 4.Smoothly clean the shed film, keep the shed film clean, increase the light transmittance, and improve the transparency of the shed. Chemical Control 1. Control Botrytis cinerea can spray 70% pyrimethanil (Meican) water dispersible granules 1500 times, 50% Fufumilewon (Rebecca) WP 500 times or 50% different Bacterial urea suspension 1500 times. 2. In the early stage of disease, the control of cucumber spot can be sprayed with 10% difenoconazole water dispersible granules 1500 times solution plus 80% carbendazim WP 500 times solution, or with 50% diflummite. Wettable powder 500 times spray. 3. To control tomato leafy mildew can be used 10% difenoconazole water dispersible granules 1500 times, 50% more fifemycin Wei wettable powder 500 times liquid or 2% 35 times kasugamycin water spray. The above-mentioned medicaments are used alternately. According to weather changes, the spray is applied once every 5-7 days and sprayed three times in succession. Fungi, a large class of chlorophyll - free, can not carry out photosynthesis, heterotrophic lower class of plants. These include bacteria, slime molds and fungi. Their common characteristics are: the plant body has no differentiation of roots, stems and leaves, does not contain chlorophyll and other photosynthetic pigments (except a few photosynthetic bacteria), can not carry out photosynthesis, saprophytic life or parasitic life, that is, heterotrophic life. Most of the reproductive organs are single-cell structures, and the zygotes do not develop into embryos. Ganoderma Lucidum Extract,Lion's Mane mushroom Extract,Chaga Mushroom Extract Xi'an Double H Health Technology Co., Ltd , https://www.xahnhcj.com