Understand the prevention and treatment methods of rose powdery mildew and precautions. Rose is known as the "queen of flowers". With its gorgeous flowers and fragrant aroma, it has won the love of many flower friends. During the maintenance process of rose, powdery mildew has become a problem for many flower friends. This article will provide you with a comprehensive analysis of the methods to remove rose powdery mildew and help you easily maintain beautiful roses. Understand that Rose Powdery Mildew is a common disease, mainly caused by fungi. Powdery Mildew mainly affects rose leaves, twigs and flower buds, causing the leaves to turn yellow and curl. In severe cases, it can lead to the death of the entire plant. Understand the symptoms and causes of powdery mildew will help us better prevent and treat it. Preventive measures 1. Choose healthy plants: When buying roses, choose plants that are disease-free and grow vigorously.
2. Reasonable watering: Avoid long-term accumulation of water in leaves and maintain soil permeability.
3. Ventilation and light transmission: Maintain the distance between plants, avoid overcrowding, and increase light.
4. Clean the environment: Regularly clean up fallen leaves and weeds around the plants to reduce the breeding of pathogenic bacteria. Treatment methods 1. Drug prevention and control: In the early stage of powdery mildew, you can use 50% carbendazim wettable powder 1000 times solution or 70% thiophanate methyl wettable powder 1000 times solution to spray, every 7-10 days. Spray once, spray 2-3 times continuously.
2. Biological control: Using the natural enemy of powdery mildew, powdery mildew worms, to control and control the occurrence of diseases can be effectively controlled.
3. Physical prevention and control: In the early stage of the disease, you can apply soapy water or lime water to the disease to alleviate the condition. Notes 1. When using pesticides, use them strictly in accordance with the instructions to avoid excessive spraying.
2. During the prevention and control process, attention should be paid to observing the growth status of the plants and adjusting the prevention and control measures in a timely manner.
3. Avoid spraying pesticides in high temperature and high humidity environments to avoid causing harm.
Although rose powdery mildew has caused trouble for maintenance, as long as we understand the cause of its occurrence and take reasonable prevention and control measures, we can effectively control the occurrence of the disease. I hope this article can help you and make it easy for you to maintain beautiful roses.
References: 1. Zhang Lihua, Liu Chunyan. Control of rose powdery mildew [J]. Plant Protection, 2015, 41 (2): 35-37.
2. Li Ming, Zhang Xiaofang. Study on the control technology of rose powdery mildew [J]. Plant Protection, 2016, 42 (3): 45-48.
China Flower Association. Development Report of China Flower Industry [M]. Beijing: China Agricultural Press, 2019.