Distribution and Hazards Various cultivation areas have occurred to varying degrees, endangering sea lice and other flowers. symptom Infected plant leaves, flowers, leaves on the flower seeds often water stains large brown spots, when the air humidity is large, the formation of gray black mold layer. pathogen The pathogen is fungi, Botrytis cinerea. Occurrence High humidity, warm air, poor light transmission, and poor plant growth are conducive to the disease. Control methods (1) Strengthen the cultivation and management, sea lice, hi-temperature, high humidity and semi-yin environment, not cold, winter room temperature shall not be less than 15 °C, avoid direct light, should be planted in well-fed and well-drained soil. Cuttage or branch propagation. The temperature and humidity in the facilities are regulated to be high temperature (above 28°C) and low humidity (relative humidity less than 80%) when they are likely to develop, creating conditions conducive to disease occurrence. (2) Do a good job in flower bed hygiene, remove dead leaves and diseased leaves in time, and concentrate them deeply. (3) In the initial stage of onset of spraying, 50% of Nongliling WP can be used as 1500 times, and 50% of acetaminophen can be used as 1500 times. Endoscope Transfer Vehicle,Medical Endoscopic Transfer Vehicle,Gastrointestinal Transfer Vehicle,Endoscopic Transfer Vehicle Taizhou Gaogang District Dixin Medical Equipment Co., Ltd. , https://www.dixinmedical.com