Causes of blackening of plant flower leaves and prevention measures for blackening of plant flower leaves With the arrival of spring, many families and gardening enthusiasts have begun to plant various flowers and plants. During the maintenance process, we often encounter the problem of blackening of plant flower leaves, which not only affects the beauty of plants, but may also pose a serious threat to plant growth. This article will analyze in detail the reasons for blackening of plant flower leaves and prevention measures to help you easily deal with this problem. Reasons for blackening of plant flower leaves 1. One of the most common reasons for blackening of plant leaves is bacterial infection. Pathogens such as fungi and bacteria invade the plant body, which can cause symptoms such as spots, spots, and blackening on the leaves.
2. Insect pests such as aphids, red spiders, scale insects, etc. will absorb nutrients from plants, causing blackening of leaves.
3. Improper water management If too much or too little watering will cause damage to the plant's roots, which in turn affects the normal growth of leaves and makes them black.
4. Plants with insufficient light need enough sunlight for photosynthesis. If there is insufficient light, the plant leaves will turn black due to malnutrition.
5. Improper application of fertilizer. Excessive application of fertilizer or improper application of fertilizer will cause damage to the root system of the plant, which in turn affects leaf growth. Prevention and control measures for blackening of plant flower leaves 1. Prevention and control of bacterial infections (1) Remove diseased leaves and branches in time to avoid the spread of bacteria.
(2) Spray with fungicides, such as carbendazim, chlorothalonil, etc.
2. Pest control (1) Regularly inspect plants and remove pests found in time.
(2) Spray with pesticides, such as imidacloprid, avermectin, etc.
3. Water management (1) Water reasonably according to the growth habits of plants to avoid too much or too little.
(2) Keep the soil drained well and avoid stagnant water.
4. Light adjustment (1) Place the plant in a sunny place to ensure it receives sufficient light.
(2) If the light is insufficient, artificial light sources can be used to supplement it.
5. Fertilizer application (1) Reasonably apply fertilizer according to the growth needs of plants.
(2) Avoid excessive application of fertilizer to avoid damage to the roots.
Blackening of plant flower leaves is a common problem. Understanding the causes and control measures will help us better maintain plants. In actual operation, we must take corresponding measures according to specific conditions to ensure the healthy growth of plants and pay attention to plants. Growth status, timely identification and resolution of problems, making our plants more beautiful.
References: [1] Zhang Wei, Li Ming. Plant pest control technology [M]. Beijing: China Agricultural Press, 2018.
[2]Wang Lihua, Liu Yang. Practical manual for family flower cultivation [M]. Beijing: China Agricultural Press, 2017.
[3]Zhang Zhiqiang, Chen Xiaodong. Diagnosis and control of plant diseases [M]. Beijing: China Agricultural Press, 2016.