Causes for the appearance of pink spots on jasmine leaves. Prevention and control methods for pink spots on jasmine leaves With the widespread planting of jasmine flowers in our country, more and more flower farmers have begun to pay attention to the maintenance of jasmine flowers. Many flower farmers report that pink spots appear on jasmine leaves, which not only affects the ornamental value of jasmine flowers, but may also pose a threat to the growth of jasmine flowers. This article will analyze in detail the causes and prevention methods of pink spots on jasmine leaves to help flower farmers solve this problem. Causes of pink spots on jasmine leaves 1. Causes of disease The most common cause of pink spots on jasmine leaves is disease infection. The most common diseases are powdery mildew and black spot. These two diseases can cause pink spots on jasmine leaves. In severe cases, it can even cause the leaves to wither and fall off.
2. Causes of pests In addition to diseases, pests are also one of the causes of pink spots on jasmine leaves. For example, jasmine spider mites, scale insects, etc., they will absorb the juice of jasmine leaves, causing pink spots on the leaves.
3. Improper maintenance of jasmine leaves may also be related to improper maintenance, such as excessive watering, improper fertilization, insufficient light, etc., which can lead to pink spots on jasmine leaves. Prevention and control methods for pink spots on jasmine leaves 1. Disease prevention and control (1) Strengthen horticultural management: Remove diseased leaves and branches in time to reduce the spread of diseases.
(2) Reasonable fertilization: Apply organic fertilizer, avoid excessive application of nitrogen fertilizer, and maintain balance of soil fertility.
(3) Spraying pesticides: Select high-efficiency and low-toxicity fungicides, such as difenoconazole, carbendazim, etc., spray every 7-10 days, and spray 2-3 times continuously.
2. Pest control (1) Physical control: Regularly inspect jasmine plants and remove pests in time.
(2) Biological control: Use natural enemy insects, such as predatory mites, parasitic bees, etc., to control pests.
(3) Chemical control: Select high-efficiency and low-toxicity pesticides, such as imidacloprid, buprofezin, etc., spray them every 7-10 days, and spray them 2-3 times continuously.
3. Maintenance and adjustment (1) Reasonable watering: Keep the soil moist and avoid stagnant water.
(2) Fertilization adjustment: Apply organic fertilizer to avoid excessive application of nitrogen fertilizer.
(3) Light adjustment: Keep the jasmine plant with sufficient light to avoid long-term darkness.
Pink spots on jasmine leaves are a common problem during the maintenance of jasmine flowers. Understanding the causes and control methods is crucial for flower farmers. By strengthening horticultural management, reasonable fertilization, spraying pesticides, physical control, biological control and maintenance adjustment, etc. Measures can effectively prevent and control the appearance of pink spots on jasmine leaves and ensure the healthy growth of jasmine flowers.
References: [1] Zhang Lihua, Li Xiaodong. Occurrence and control of jasmine powdery mildew [J]. Plant Protection, 2018, 44 (2): 72-74.
[2]Wang Xiaoli, Liu Lijun. Pathogen identification and control of Jasmine black spot [J]. Plant Protection, 2017, 43 (1): 35-37.
[3]Zhang Min, Liu Fang. Occurrence and control of spider mite Jasmine [J]. Plant Protection, 2016, 42 (3): 58-60.