What to do if the leaves of Bougainvillea turn yellow and fall off
Main content introduction: Discussing why the leaves of Bougainvillea turn yellow and fall off and the methods to save Bougainvillea from leaf dropping, let's follow the editor to see the specific details!
Bougainvillea has certain ornamental value and is very suitable for keeping at home. However, many people encounter problems such as yellowing leaves during cultivation. Most people may not know the reason why the leaves of Bougainvillea turn yellow. In fact, most of the reasons are caused by overwatering. Therefore, gardeners need to pay more attention during the maintenance period. So, what should be done if the leaves of Bougainvillea turn yellow and fall off? Let's find out together with the editor.
【One, reasons and treatment methods for the yellowing of Bougainvillea leaves】
<1, Overwatering>
The majority of reasons for the yellowing of Bougainvillea leaves are caused by overwatering. Although Bougainvillea has a relatively high demand for water, it does not need to be watered every day. This will only lead to excessive water accumulation in the pot, resulting in yellowing leaves and root rot.
Treatment method: First, place the Bougainvillea in a well-ventilated area to allow the potting soil to dry. During this period, do not water. Only when the soil becomes dry, you can choose to water the pot.
<2, Over-fertilization>
Although plant growth is inseparable from fertilizer, when cultivating Bougainvillea, fertilizing is not allowed in winter. Moreover, the cold climate will cause Bougainvillea to enter a dormant state. Fertilizing at this time can easily cause yellowing of the leaves, especially if the fertilizer is too concentrated, it can lead to the direct rotting of the Bougainvillea roots.
Treatment method: Stop fertilizing for a period of time. Avoid using raw or concentrated fertilizers, and do not apply too much fertilizer at once. If the leaves of Bougainvillea still cannot recover, it is best to repot and plant in new soil.
<3, Diseases and pests>
Bougainvillea leaf spot and brown spot diseases do not cause the leaves to turn yellow. In the early stage of the disease, yellow or brown spots appear on the leaves. As the spots expand, the leaves gradually fade and fall off. Therefore, encountering diseases and pests, yellowing and falling off of leaves are relatively normal phenomena, and timely countermeasures must be taken.
Treatment method: Cut off the branches that are heavily affected by the disease. Then, spray carbendazim once a week to ten days, totaling three to four times. If it is very severe, the interval can be adjusted to four days, which can help the Bougainvillea leaves recover to their original state.
<4, Lack of sunlight>