Because magnolia trees grow big and have dense leaves, there will be a powdery mildew. Also, magnolia will grow worms, which is not suitable for family breeding. Magnolia is easy to attract mosquitoes.
magnolia is suitable for growing in warm and humid climate and fertile and loose soil, and likes light. Not resistant to drought or waterlogging, the roots will die after being flooded for 2-3 days. It is sensitive to toxic gases such as sulfur dioxide and chlorine, and has poor resistance.
The pests of magnolia flowers are mainly aphids and scale insects. In the process of magnolia flower management, attention should be paid to the prevention and control of anthracnose besides yellowing and root rot.
Extended information:
Magnolia grandiflora (scientific name: Michelia alba DC.) is a white-flowered variety of Magnolia grandiflora. Also known as Mulan, Magnolia and so on. Deciduous trees, up to 17 meters high, are famous flowers and trees in China, important ornamental trees in early spring in the north, and Shanghai flowers. They have a cultivation history of about 2,5 years and are valuable ornamental trees in gardens. In ancient times, it was planted in front of pavilions, platforms, buildings and pavilions. Now it is more common in gardens, factories and mines, solitary planting, scattered planting, or roadside trees on both sides of the road. There are also potted plants for pile scenery in the north. Now it has been introduced and cultivated all over the world.
Reference: Baidu Encyclopedia-Magnolia