How to deal with the yellow leaves of Rosa davurica?

2. Improper watering

3. Improper fertilization

4, improper lighting

5. illness

6. Don't change the soil.

7. Chagan

8. Water

9, fertilization

10, lighting

1 1, disease

1. Not rooting. The newly bought wild rose did not grow new roots after planting. Maybe I felt alive at that time, but it was actually a "fake life", not a real life. Supply performance.

2. Improper watering. Bai Yutang's favorite environment, afraid of water. Slightly watering too much or too little will affect the growth of roots and lead to yellowing of leaves. Or too much rain, root rot, water and nutrients can not be transported in time, leaves turn yellow.

3. Improper fertilization. Newly planted roses generally need fertilization in autumn. If the fertilizer is applied too early, the roots will burn out and the rose plants will die. In addition, the amount of fertilization also has an impact. Too much fertilization, burning roots, too little fertilization and insufficient nutrients will all lead to yellowing of leaves.

4. Improper lighting. Potted plants in Rosa davurica should not be placed in places with insufficient light and ventilation. If the local light is too strong, the leaves will turn yellow and be absent. If the light is too dim, stuffy and stuffy, and the air is dry, the leaves will turn yellow.

5. disease. The leaves of the wild rose turn yellow, and the wild rose may get sick. Common diseases include black spot, powdery mildew and rust. At the onset, there will be spots or diseases in different degrees on the leaves. Leaves gradually turn green and yellow, which will cause a large number of leaves to fall off in severe cases.

6. Don't change the soil. Generally, potted plants in wild roses need to be changed once every three to six months. After a long time, there will be no nutrients in the soil, and the leaves of wild rose will turn yellow.

7. chagan. Check whether the root is broken. Cut off the rotten part with a knife, pay attention to disinfection before using the knife, and then cultivate new roots. If all the roots rot, there is no hope.

8. water. Generally, water should be done according to the weather conditions. In early spring, water 3-4 times a day to keep the soil moist. Water it 2-3 times in hot and dry summer and 2-3 times in autumn. Pay attention to ensure that there is no water and waterlogging at the root. Too little watering will affect the number of flowers. So be sure to pay attention to reasonable watering.

9. Fertilize. When Rosa davurica was first planted, the plants were very weak, but foliar fertilizer was sprayed properly. Wait until autumn to fertilize the soil. However, we should pay attention to the content of fertilization, too much will lead to excessive growth of branches and leaves, which will affect flowering.

10. Lighting. Place the potted Rosa davurica in a place with moderate sunshine and ventilation.

1 1. Disease. No matter what kind of disease it is, we should do a good job of prevention in time. Once they appear, wild roses will be damaged, causing great harm and serious direct loss of ornamental value. If you find a disease, you should treat it in time and spray the corresponding medicine once a week. However, it should be noted that the spraying times and duration of different chemicals are different. Be especially careful when changing soil, so as not to hurt the roots of flowers. Don't press the soil too tightly when you bring the flowers back. Just water them, put them in a sunny place and wait for them to come back to life. Can not be placed directly in the sun, in order to avoid excessive withering in the sun.