Recently, the reporter interviewed Dongma Village, Tianliu Township, Shouguang City, and saw the rubbish dump on the roadside was full of dumped tomatoes. The reporter was somewhat puzzled and took off and looked at it. The tomato fruit was Zhou Zheng, but it was fruit. "Bird's eye spots" appear on the surface. These birds' eyes are round and the spots appear white and slightly raised around. The center has brown hibiscus flowers, but the fruit does not rot; on some fruits, many bird eyes Spots have also been linked together to form an amorphous ward. So the reporter immediately came to the shed area of ​​the village, and vegetable cultivator Yang Yumei told reporters: “A lot of vegetable farmers in our village planted shed tomatoes, most of which were planted in mid-April, generally leaving 5-6 ear fruit, and the current first panicle fruit is coming soon. But a lot of fruits that are about to change in the upper part have appeared in large numbers of bird's eye spots. Sometimes one or two baskets can be picked a day. It is really distressing to see this good tomato dumped! And there are many tomato stalls nearby. This situation!" In the shed of the vegetable farmer Liu Aihua, the reporter saw that his shed began to grow from the fruit of the second ear, and most of the ears had fruit on them, which caused a serious impact on the yield. In addition, some stems and stems of some plants are brown and black, and some extend from one section to several sections. Vegetable farmers are very distressed. What are the reasons for consulting with reporters? In fact, this is a canker disease of tomatoes and belongs to a bacterial disease. The bird's eye spot is a specific symptom of the disease. The infected plant or fruit is mainly invaded through the wound, and can also directly invade from the stomata or the fruit surface. When the disease occurs in the greenhouse, it spreads by watering. The current temperature in the shed is high and the water evaporates quickly. Therefore, in order to prevent the soil from drying, most vegetable farmers water frequently and the plants are exposed to high temperature and high humidity, especially in the case of rainy weather or long-term condensation. Onset, and after the onset of partial application of nitrogen fertilizer or flood irrigation, will lead to disease spread. Therefore, the reporter suggested that: At present should pay attention to timely and appropriate amount of watering, should not flood irrigation, in the rainy days should also pay attention to the ventilation of the greenhouse, to prevent the ventilation outlet closed to increase the humidity inside the greenhouse, to create conditions for disease infection; spray control When disease occurs, the pharmaceutical agent is the first choice for copper preparations. It can be sprayed with 600-800 times, 47%, and 600-fold for 47% Garnett. FFP2 Mask,High Quality FFP2 Mask,FFP2 Mask Details, CN Dongguan Maimeng Culture and Creative Co. Ltd , https://www.factorydirectmask.com