Haitang trees are one of the common ornamental plants in China, loved by many horticulture enthusiasts for their beautiful flowers and elegant tree posture. In recent years, many Haitang trees have shown leaf drying phenomena, which not only affects the beauty of the trees but may also pose a serious threat to their growth. This article will analyze in detail the reasons for the drying of Haitang tree leaves and propose corresponding prevention and control measures to help horticulture enthusiasts protect their own Haitang trees.
Reasons for the drying of海棠 tree leaves1. Insufficient water
Water is essential for plant growth. If the soil is dry for a long time, the roots of the Haitang tree cannot absorb enough water, causing the leaves to dry due to lack of water.
2. Improper application of fertilizer
Excessive or insufficient fertilization can lead to poor growth of the Haitang tree and leaf drying. Excessive fertilization can lead to high soil salinity, hindering root water absorption; while insufficient fertilization can cause slow growth of the Haitang tree and reduced resistance.
3. Pest and disease invasion
The drying of Haitang tree leaves may also be caused by pests and diseases. Common diseases include powdery mildew, anthracnose, etc., and common pests include aphids, red spiders, etc.
4. Insufficient sunlight
Haitang trees require ample sunlight. If they are in a dark environment for a long time, the leaves will dry due to insufficient photosynthesis.
5. Aging of the tree
With the advancement of age, the roots and canopy of the Haitang tree gradually age, leading to reduced resistance and making it easier for the leaves to dry.
Prevention and control measures for the drying of Haitang tree leaves1. Appropriate watering
Adjust the watering frequency and amount according to the growth habits of the Haitang tree. During the vigorous growth period, increase the watering frequency appropriately to keep the soil moist; during the dormant period, reduce the watering frequency to avoid overly moist soil.
2. Scientific fertilization
According to the growth needs of the Haitang tree, properly match the types and amounts of fertilizer. During the vigorous growth period, apply a moderate amount of compound fertilizer containing nitrogen, phosphorus, and potassium to promote plant growth; during the dormant period, apply organic fertilizer to improve soil fertility.
3. Preventing pests and diseases
Regularly inspect the Haitang tree and take timely measures when pests and diseases are found. For diseases, use pesticides such as Bordeaux mixture and carbendazim for control; for pests, use pesticides such as dichlorvos and pymetrozine for spraying.
4. Appropriate pruning
Prune away diseased, weak, dry, and dense branches to improve ventilation and lighting conditions and reduce the incidence of pests and diseases.
5. Enhancing sunlight
Move the Haitang tree to a place with abundant sunlight to ensure it can receive adequate sunlight.
There are many reasons for the drying of Haitang tree leaves, and horticulture enthusiasts need to analyze the actual situation and take corresponding prevention and control measures. Through scientific management, we believe we can protect these beautiful Haitang trees and help them grow robustly.