How to prevent yellow leaves after flowers enter the room? Methods to prevent flower diseases and insect pests

one. Controlled watering: after entering the house, the water transpiration of flowerpots and plant appearance has decreased because the space is not as broad as outdoor space. If it is still watered as before, the rotten roots will be caused by the wet basin soil, and the leaves on the upper part of the plant will turn yellow.

two. Reduce fertilization: in autumn, most flowers change from luxuriant growth to slow growth, after the flowers enter the house, because the rising temperature will make them enter the stage of rapid growth. However, the absorption of fertilizer is not as good as that in summer, so it is necessary to reduce or stop topdressing in order to avoid yellow leaves.

three. Adjust the light: some flowers that like strong light, such as rose and Fusang, are placed in a shady place after entering the room, because of the lack of light, the plants will appear yellow leaves. On the contrary, placing the bird's nest fern and tortoise bamboo in the place where the light is too strong will also cause the leaves to lose green and yellowing. The location of flowers in the room should also be adjusted reasonably.

four. Environmental ventilation: the environment is closed, which will gradually increase the content of ethylene in the air, which leads to the aging of flowers. at this time, many flowers that are sensitive to ethylene are particularly prone to yellow leaves. Therefore, often maintaining good ventilation is one of the effective ways to avoid indoor flowers and yellow leaves.

five. Maintain the right temperature: because the ambient temperature is uncomfortable, many flowers will also have yellow leaves, especially when there is a large temperature difference before and after entering the house. For example, if Milan and rhododendron are moved to the greenhouse when the lowest outdoor temperature is about 5 ℃, because they do not pay attention to the cooling, and the ambient temperature rises to about 25 ℃ during the day, yellow leaves will soon emerge in the plants. when this is the case, precautions should also be taken.