Hibiscus, also known as the shrub rose, is one of the common ornamental plants in China. Its flowers come in a variety of colors and shapes, loved by many. However, during the growth of hibiscus, the phenomenon of new leaves curling has puzzled many gardening enthusiasts. This article will unveil the secrets of the curling of new leaves in hibiscus and provide corresponding maintenance skills.
Reasons for the curling of new leaves in hibiscus1. Disease infection
The curling of new leaves in hibiscus may be caused by disease infection. Common diseases include leaf spot and powdery mildew, which can cause leaves to curl and wither.
2. Pest attack
Pests are also one of the reasons for the curling of new leaves in hibiscus. Common pests include aphids and red spiders, which absorb nutrients from the leaves, causing them to curl.
3. Improper maintenance
Improper maintenance is also a reason for the curling of new leaves in hibiscus. Excessive watering, improper fertilization, and insufficient light can all affect the growth of hibiscus, leading to leaf curling.
Preventive methods for curling of new leaves in hibiscus1. Disease control
Upon discovering diseases, it is necessary to promptly cut off the diseased leaves and spray fungicides for prevention and control. Common fungicides include Bordeaux mixture and thiophanate-methyl.
2. Pest control
Upon discovering pests, insecticides can be used for control. Common insecticides include pymetrozine and dichlorvos. It is important to maintain good ventilation in the environment to reduce the occurrence of pests.
3. Maintenance measures
(1) Reasonable watering: Keep the soil moist and avoid waterlogging. Watering should be done in the morning or evening, avoiding the high temperatures of noon.
(2) Moderate fertilization: Apply nitrogen, phosphorus, potassium, and other fertilizers according to the growth stage of hibiscus. During the vigorous growth period, nitrogen fertilizer can be increased appropriately to promote the growth of branches and leaves.
(3) Sufficient light: Hibiscus loves sunlight and should be placed in a sunny location. During the hot summer, it can be shaded appropriately to avoid leaf sunburn.
(4) Pruning and shaping: Regularly prune hibiscus, removing diseased and weak branches and withered branches to maintain an attractive tree shape.
Maintenance skills for curling of new leaves in hibiscus1. Choose a suitable planting location: Plant hibiscus in a place with good drainage, fertile soil, and plenty of sunlight.
2. Timely watering: Water according to soil moisture to keep the soil moist.
3. Reasonable fertilization: Apply fertilizers according to the growth stage of hibiscus to promote its growth.
4. Preventing diseases and pests: Regularly inspect hibiscus and control diseases and pests in a timely manner.
There are various reasons for the curling of new leaves in hibiscus, including disease infection, pest attack, and improper maintenance. By understanding the reasons and taking corresponding preventive measures and maintenance skills, this issue can be effectively prevented and resolved. It is hoped that this article can provide useful reference for gardening enthusiasts.