The crabapple, also known as the five-color crabapple, is a common indoor ornamental plant, loved by many for its colorful flowers and lush green leaves. In the process of caring for it, we often encounter the problem of the crabapple leaves turning yellow. What should we do when the crabapple leaves turn yellow? Let's delve into this in detail below.
Reasons for the yellowing of crabapple leaves1. Improper water management
The crabapple prefers a humid environment but is not tolerant of waterlogging. Too much or too little watering can cause the leaves to turn yellow. When watering, it is important to follow the principle of "watering when dry and damp," and avoid water accumulation.
2. Insufficient lighting
The crabapple enjoys a well-lit environment. Long-term exposure to阴暗 conditions can cause the leaves to turn yellow. It should be placed in a location with ample scattered light, such as a windowsill or balcony.
3. Improper application of fertilizer
Excessive application of fertilizer can lead to high soil salinity, which affects the growth of the crabapple. When fertilizing, follow the principle of "frequent application of thin fertilizer" and avoid applying too much fertilizer at once.
4. Pest and disease infestation
The crabapple is susceptible to pests such as red spiders and scale insects, which can cause the leaves to turn yellow. These pests should be detected and controlled in a timely manner.
What to do when crabapple leaves turn yellow1. Water properly
In response to yellowing leaves due to improper water management, first check the watering condition. If overwatered, stop watering immediately and water again only when the soil surface is dry. If underwatered, increase the watering frequency to keep the soil moist.
2. Adjust lighting
If yellowing is due to insufficient lighting, move the crabapple to a well-lit area. If space is limited, artificial lighting devices such as plant growth lights can be used.
3. Fertilize appropriately
In response to yellowing leaves due to improper fertilizer application, stop fertilizing for a period and then fertilize again when the soil has recovered to an appropriate fertility level. Choose a fertilizer suitable for crabapple and follow the principle of "frequent application of thin fertilizer."
4. Control pests and diseases
If the yellowing of the crabapple leaves is due to pest and disease infestation, take immediate measures to control them. Use pesticides and fungicides for spraying, and at the same time, strengthen ventilation to keep the air circulating.
The yellowing of crabapple leaves may be caused by various reasons. In the process of caring for them, we need to observe carefully, identify the problem, and take corresponding measures to solve it. Only by mastering the correct care methods can we ensure that the crabapple grows robustly and blooms beautiful flowers.
References:
《Indoor Foliar Plant Care Guide》, China Forestry Publishing House, 2018 edition.
《Plant Pest and Disease Control Technology》, China Agricultural Publishing House, 2017 edition.