Reasons for the half-rotten leaves of bougainvillea and preventive measures
Bougainvillea, also known as paper flower, is an ornamental plant with very high ornamental value, deeply loved by gardening enthusiasts. However, many enthusiasts are troubled by the phenomenon of half-rotten leaves appearing in bougainvillea during maintenance. This article will provide you with a detailed analysis of the reasons for the half-rotten leaves of bougainvillea and the corresponding preventive measures to help you solve this problem.
Reasons for half-rotten leaves of bougainvillea
1. Improper water management
Bougainvillea prefers a humid environment, but excessive water can cause root hypoxia, leading to root rot and causing half of the leaves to rot. Uneven watering and failure to ventilate in time after watering can also cause half of the leaves to rot.
2. Disease and pest infection
Half-rotten leaves of bougainvillea may be caused by disease and pest infections. Common diseases and pests include leaf spot disease, powdery mildew, aphids, and red spiders. These diseases and pests will invade the leaves, causing symptoms such as spots and rot.
3. Insufficient lighting
Bougainvillea requires ample sunlight. If it is in a dark environment for a long time, it will lead to poor leaf growth and the phenomenon of half-rotten leaves.
4. Uncomfortable temperature
Bougainvillea is sensitive to temperature, and both high and low temperatures can affect its growth. If the temperature fluctuates greatly, it is easy to cause the leaves to rot halfway.
Preventive measures for half-rotten leaves of bougainvillea
1. Strictly control water
Keep the soil moist when watering and avoid waterlogging. Ventilate in time after watering to prevent root hypoxia, and adjust the watering frequency according to the season and weather changes.
2. Strengthen the prevention and treatment of diseases and pests
Regularly inspect bougainvillea, and deal with diseases and pests in a timely manner when found. Pesticides can be used for prevention and treatment, and the leaves should be kept clean to reduce the breeding of diseases and pests.
3. Provide sufficient light
Place bougainvillea in a sunny location, ensuring 4-6 hours of direct sunlight every day. If there is insufficient light, the placement position can be adjusted appropriately.
4. Control temperature
Keep the indoor temperature between 15-30℃, avoiding high or low temperatures. In winter, pay attention to keeping warm to prevent the bougainvillea from freezing.
5. Reasonable fertilization
Fertilize according to the growth needs of bougainvillea. During the vigorous growth period, nitrogen, phosphorus, and potassium fertilizers can be applied to promote leaf growth.
There are many reasons for the half-rotten leaves of bougainvillea, mainly including improper water management, disease and pest infections, insufficient lighting, and uncomfortable temperature. After understanding these reasons, we can take corresponding preventive measures to ensure the healthy growth of bougainvillea. I hope this article is helpful to you.