Leaf spot disease of lucky treeThe lucky tree will develop leaf spot disease when it is exposed to high temperature and high humidity. Leaf spot disease can cause the lucky tree to have symptoms such as yellowing leaves, spots on the leaves, and dry branches. Prevention and control methods: When the lucky tree gets leaf spot disease, the first thing to do is to increase ventilation and light to evaporate the moisture on the leaves, because high temperature and high humidity will cause water accumulation and cause the leaves to rot and turn yellow, thus causing leaf spot disease. Secondly, if infected leaves are found, they should be removed in time and then sprayed with 600 times diluted 50% carbendazim wettable powder. Such spraying should be done once every half a month, and sprayed three times each time. Finally, if you have a potted lucky tree, you need to apply Daknin cream ointment. Powdery mildew of the lucky treePowdery mildew of the lucky tree is a fungal disease that can harm leaves, stems, flower buds and other parts. The symptoms of the disease are small white spots on the leaves, which will be covered with a white powdery mold layer. After the flowers are infected, white powdery mist will appear on the buds, affecting the ornamental value of the lucky tree and making the plant short and lifeless. The disease is usually most severe in June, but can also occur in September. Prevention and control methods: For the powdery mildew of the lucky tree, soak it in green onion liquid with water for half a day to extract the juice, then spray it on the leaves. Spray it about 3 times a day for 4 days to see the situation. Stop spraying when it is basically cured, and continue spraying if it is not good. Or use rice vinegar: add rice vinegar to water and spray it on the leaves, spray once every 7 days, and spray 3 or 4 times continuously. Sooty disease of the lucky treeThe sooty mold disease of the lucky tree is also a fungal virus. The disease occurs in summer and autumn, and it mainly harms the leaves and branches of the plant. Sooty mold will cause dark brown mold spots to appear on the surface of the leaves of the lucky tree, which will expand into a black, sooty fog layer over time and cause the leaves to fall off. Prevention and control methods: reduce air humidity, ventilate and supplement light. Then spray the lime sulfur mixture on the surface of the leaves, wait for the leaves to absorb the medicine, and then clean the leaves with clean water. |
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