Botrytis cinerea is a serious and common disease on tomatoes, and some leaves, stems and fruits in the shed are diseased. The years with low temperature and continuous rainy weather are serious. When the disease is serious, the diseased leaves are dead, the diseased branches are broken, and a large number of burnt flowers and rotten fruits directly affect the yield. Control methods: 1. The ventilation temperature and temperature management should be strengthened to increase the temperature of the shed and reduce the humidity in the shed. That is, the wind is released on a sunny day. When the temperature of the shed rises to 33 °C, the top wind is started again. When the temperature of the shed falls to 20 °C, the vents are closed. The night shed temperature is kept at 15 °C~17 °C, and the vents are opened on a cloudy day. 2. Watering should be carried out in the morning, and watering should be controlled at the beginning of the disease to prevent condensation. 3. Immediately remove the diseased leaves, side branches, and diseased fruit after the onset and concentrate on burning or deep burial to avoid artificial transmission. 4. Chemical control of tomato gray mold: Use before planting. The tomato seedlings were sprayed with 50% keering WP 1500 times or 50% carbendazim WP 500 times, and the disease-free seedlings were required to enter the shed. Take medicine when you touch it. The method is to use the 0.1% 50% keeling WP or 50% carbendazim WP to dip or smear the first spike when it is flowering. Make the flower medicine. Apply the medicine one day before the fruit water. It is controlled by using 65% of the methicillin WP 800 times solution or 50% of the carbendazim WP 700 times or 50% of the methicillin WP 700 times. Dong Xiuying This article URL: How to deal with gray mold in summer tomato planting Hybrid Stepper Motors,Brushless DC Motors,Linear Motor,Gear Motor,Step-Servo Motors,Brushless Motors Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiejts.com