What to do if the leaf umbrella drops leaves

Reasons for leaf drop

1. Pests and diseases

The high humidity, high temperature, and relatively closed and airtight conditions in greenhouse potted plants or those growing large-leaf umbrellas can cause plants to suffer from diseases and insect pests. If you notice white spots on the leaves of the umbrella plant or the leaves curl up and fall off, you should check carefully to see if there are any insects. If the leaves of the cultivated umbrella-leaf shrub turn black first and then rot, it may be caused by bacteria. At this time, it is recommended that you spray some drugs such as "carbendazim" on the leaves; if you find clearly visible small insects on the leaves of the umbrella-leaf shrub, you can choose to spray "Black Tornado", and the condition will improve after a period of time after the pests are removed.

2. The growth environment temperature is too low

Because the origin of the umbrella tree is tropical, when planting this plant in winter, while ensuring that other growing conditions are suitable, the surrounding temperature must not be below 15 degrees.

3. Improper watering and fertilization

If the fertilizer is not applied properly, "leaf burn" will occur, which is also the main reason why the umbrella plant drops its leaves. If you apply a small amount of fertilizer each time, it is possible that the fertilizer is too close to the roots of the umbrella plant during the fertilization process. In winter, the amount of water and fertilizer should be strictly controlled, and the frequency can be watering once every four days or so. In addition, to avoid excessive dryness in winter, you can sprinkle a very small amount of water on the surface of the leaves of the umbrella plant.

How to effectively prevent leaf drop

1. Water and fertilize in appropriate amounts. In winter and in suitable growing environments, the frequency of watering and fertilizing should be reduced as appropriate.

2. The minimum safe temperature for growing umbrella trees in winter is eight degrees Celsius, so be sure to take precautions against the cold. Avoid direct sunlight in summer and provide sunshade at noon.