The leaves of sweet-scented osmanthus dried up

Sweet-scented osmanthus, also known as sweet clover, rock osmanthus, is the evergreen shrub or small Qiao of the sweet-scented osmanthus family, but it does not seem to be very easy to raise, summing up the situation of flower friends, it is found that many people will encounter the problem of sweet-scented osmanthus leaves drying up or even turning brown and black in the process of culture. here we summarize the experience of our predecessors and experts on sweet-scented osmanthus to make a simple analysis of the problem that sweet-scented osmanthus leaves dry and even turn brown and black.

The problems that caused the leaves of sweet-scented osmanthus to dry up and even turn brown and black were simply analyzed as follows:

L, watering problem: sweet-scented osmanthus soil should be well breathable and afraid of waterlogging. It's best not to dry or water it, thoroughly every time. Fear of flooding, in case of waterlogging harm, the root system blackened and rotted, the leaf tip first scorched, and then the whole leaf withered and yellow fell off, resulting in the death of the whole plant.

2. Lighting problem: it is appropriate to arrange the degree and duration of light exposure of sweet-scented osmanthus.

3. Humidity problem: shading and spraying are adopted as far as possible to improve environmental humidity when the temperature rises or when the environment is dry. Generally speaking, it is the sharp stem of old leaves, which can be improved as long as the humidity is increased by more than 60%.

4. Temperature problem: the optimum temperature for growth is 15-28 degrees Celsius. Low or high temperature may cause problems.

5. Ventilation problem: timely increase of ventilation is needed. Suitable for planting in a ventilated and transparent place; like a clean and ventilated environment, not resistant to smoke and dust.

6. Fertilization: potash fertilizer and humus fertilizer should be increased in peacetime to improve their disease resistance.

Sweet-scented osmanthus leaves dry sweet-scented osmanthus, also known as sweet clover, rock osmanthus, is an evergreen shrub or small tree of the sweet-scented osmanthus family, but it does not seem to be easy to raise, summing up the situation of flower friends, it is found that many people will encounter the problem of sweet-scented osmanthus leaves drying up and even turning brown and black in the process of culture. here we sum up the experience of our predecessors and experts on sweet-scented osmanthus leaves drying up or even turn brown, black to do a simple analysis. The problems that cause sweet-scented osmanthus leaves to dry and even turn brown and black are simply analyzed as follows: 1. Watering: the soil of sweet-scented osmanthus should be breathable and afraid of waterlogging. It's best not to dry or water it, thoroughly every time. Fear of flooding, in case of waterlogging harm, the root system blackened and rotted, the leaf tip first scorched, and then the whole leaf withered and yellow fell off, resulting in the death of the whole plant. 2. Lighting problem: it is appropriate to arrange the degree and duration of light exposure of sweet-scented osmanthus. 3. Humidity problem: shading and spraying are adopted as far as possible to improve environmental humidity when the temperature rises or when the environment is dry. Generally speaking, it is the tip of the old leaf, which can be improved as long as the humidity is increased by more than 60%. 4. Temperature problem: the optimum temperature for growth is 15-28 ℃. Low or high temperature may cause problems. 5. Ventilation problem: timely increase of ventilation is needed. Suitable for planting in a ventilated and transparent place; like a clean and ventilated environment, not resistant to smoke and dust. 6. Fertilization: potash fertilizer and humus fertilizer should be increased in peacetime to improve their disease resistance. 7. Bacterial problems: Brown spot, at the initial stage of the disease, chlorotic small yellow spots appeared on the leaves and gradually expanded into nearly round spots. Brown spot generally occurred from April to October, and the old leaves were more susceptible to the disease than the young ones. Blight disease, the pathogen of the disease mostly invades from the leaf edge and leaf tip, and occurs at the leaf edge and leaf tip. In the early stage of the disease, light brown dots appeared on the leaves, which gradually expanded into round or irregular plaques, and then expanded into near round or irregular grayish brown spots, with dark brown edges. Blight occurs from July to November and can occur all the year round in greenhouses with poor environmental conditions. Anthracnose, which infects sweet-scented osmanthus leaves. At the initial stage of the disease, small chlorotic spots appeared on the leaves, and gradually enlarged to form round, semicircular or oval spots. The disease spot is light brown to grayish white, with reddish-brown rings on the edge. Under moist conditions, a pink myxospore disk appears on the spot. Anthrax occurred from April to June. Prevention and control measures: first of all, we should reduce the source of infection. Thoroughly remove the diseased leaves in autumn. Potted sweet-scented osmanthus should remove the diseased leaves in time. Secondly, strengthen the cultivation management. Select fertile and well-drained soil or substrate to plant sweet-scented osmanthus; increase the application of organic fertilizer and potassium fertilizer; planting density should be suitable for ventilation and light transmission, reduce leaf humidity and reduce the occurrence of diseases. Scientific use of chemicals for prevention and control. What if the leaves of sweet-scented osmanthus are dry?

What if the leaves of sweet-scented osmanthus are dry?

Sweet-scented osmanthus, also known as sweet clover, rock cinnamon, is an evergreen shrub or small tree of the sweet-scented osmanthus family, but it does not seem to be easy to raise. Summing up the situation of flower friends, it is found that many people will encounter the problem of sweet-scented osmanthus leaves drying up or even turning brown and black in the process of culture.

The problems that caused the leaves of sweet-scented osmanthus to dry up and even turn brown and black were simply analyzed as follows:

1. Watering: the soil of sweet-scented osmanthus should be breathable and afraid of waterlogging. It's best not to dry or water it, thoroughly every time. Fear of flooding, in case of waterlogging harm, the root system blackened and rotted, the leaf tip first scorched, and then the whole leaf withered and yellow fell off, resulting in the death of the whole plant.

2. Lighting problem: it is appropriate to arrange the degree and duration of light exposure of sweet-scented osmanthus.

3. Humidity problem: shading and spraying are adopted as far as possible to improve environmental humidity when the temperature rises or when the environment is dry. Generally speaking, it is the tip of the old leaf, which can be improved as long as the humidity is increased by more than 60%.

4. Temperature problem: the optimum temperature for growth is 15-28 ℃. Low or high temperature may cause problems.

5. Ventilation problem: timely increase of ventilation is needed. Suitable for planting in a ventilated and transparent place; like a clean and ventilated environment, not resistant to smoke and dust.

6. Fertilization: potash fertilizer and humus fertilizer should be increased in peacetime to improve their disease resistance.

7. The problem of bacteria:

Brown spot, at the initial stage of the disease, chlorotic small yellow spots appeared on the leaves and gradually expanded into nearly round spots. Brown spot generally occurred from April to October, and the old leaves were more susceptible to the disease than the young ones.

Blight disease, the pathogen of the disease mostly invades from the leaf edge and leaf tip, and occurs at the leaf edge and leaf tip. In the early stage of the disease, light brown dots appeared on the leaves, which gradually expanded into round or irregular plaques, and then expanded into near round or irregular grayish brown spots, with dark brown edges. Blight occurs from July to November and can occur all the year round in greenhouses with poor environmental conditions.

Anthracnose, which infects sweet-scented osmanthus leaves. At the initial stage of the disease, small chlorotic spots appeared on the leaves, and gradually enlarged to form round, semicircular or oval spots. The disease spot is light brown to grayish white, with reddish-brown rings on the edge. Under moist conditions, a pink myxospore disk appears on the spot. Anthrax occurred from April to June.

Prevention and control measures: first of all, we should reduce the source of infection. Thoroughly remove the diseased leaves in autumn. Potted sweet-scented osmanthus should remove the diseased leaves in time. Secondly, strengthen the cultivation management. Select fertile and well-drained soil or substrate to plant sweet-scented osmanthus; increase the application of organic fertilizer and potassium fertilizer; planting density should be suitable for ventilation and light transmission, reduce leaf humidity and reduce the occurrence of diseases. Scientific use of chemicals for prevention and control.