Now is the time of the summer tomato colonization, due to the high incidence of Tomato yellow leaf curl virus disease in recent years, once let farmers friends caught by surprise, resulting in losses. It is recommended that vegetable farmers must pay attention to the following two aspects of management after tomatoes are planted in summer: 1. Strengthen anti-virus at seedling stage With the increasing occurrence of tomato virus disease over the summer, many companies are playing the "anti-virus" sign, but can not guarantee that all viruses are immune, so even if the cultivation of anti-virus varieties, we must pay attention to the prevention and treatment of viral diseases, heavy Antivirus disease. The seedling plants are weak and weak, and it is the time when the plant's disease resistance is the weakest, especially when the temperature of the greenhouse exceeds 35°C, it is easy to cause symptoms of viral diseases. Therefore, after the tomato planting, the vegetable farmer should do a good job in the prevention of viral diseases and focus on the prevention work at the seedling stage. To prevent and treat viral diseases, we must start with pest control and cut off the transmission of viral diseases. An insect-proof net was set at the air outlet to reduce the transmission of insect-infected insects into the greenhouse. Yellow boards were suspended in the shed to trap and kill. At the same time, insecticides were sprayed with imidacloprid and acetamiprid on a regular basis. 2. Multi-methods work together to minimize the temperature in the shed and create a better growing environment Summer tomatoes are most afraid of high temperatures in summer, when the temperature reaches 35 °C above, is not conducive to flower bud differentiation, tomato joints long, large leaves, thin stalks, but also an outbreak of viral disease. And tomato flowering fruit set is more sensitive to temperature, before and after flowering requirements are more stringent, the daily temperature increased to above 35 °C, the fruit growth rate is fast, but poor coloring. Therefore, in summer, the temperature in the shed should be reduced as much as possible. One is to increase ventilation, the second is to add shade nets on the film, the third is to use small water and spray water to cool down. 3. Strengthen fertilizer and water management and guard against weak trees Plants are weak, disease resistance is poor, and susceptible to premature aging. To prevent this situation, it is only necessary to cultivate strong trees and strengthen fertilizer and water management. Under the premise of basic fertilizer, the vegetables are generally not topped with fertilizers. However, in summer, it is hot and dry, and transpiration is fast. Watering and fertilizing should be determined according to the growing trend of vegetables. Laminate Door Panel,Laminated Panel Door,Composite Door Panel,Composite Doors And Panels Zhejiang Tilanco Industry&Trade Group Co., Ltd , https://www.tilancogroup.com