What to do if the leaves of Araucaria turn yellow

reason

Lack of light

If the Araucaria is kept in a weak light environment for a long time and lacks light, the leaves will turn yellow and fall off, which will affect the ornamental effect.

Overwatering

If you water the Araucaria too much, causing water accumulation in the pot, the roots will rot, making it difficult to absorb water and nutrients. The plant's growth momentum will weaken, which will cause the leaves to turn yellow.

Temperature discomfort

Temperatures that are too high or too low are not suitable for the growth of Araucaria.

When the temperature is below 5°C, the leaves will turn yellow and fall off a small amount. When the temperature is too high and the surrounding humidity is low, bright yellowing of the leaves will occur.

Hyperventilation

Excessive ventilation can cause acute dehydration of the Araucaria tree, causing the leaves to turn yellow.

Pest and disease damage

Another reason for yellowing leaves is the invasion of pests and diseases. In mild cases, the leaves will turn yellow, and in severe cases, the plants will die. At this time, it is necessary to deal with it according to the specific situation. Generally, it is prevented by spraying drugs such as carbendazim and thiophanate-methyl.

what to do

Increase lighting

If the Araucaria is placed in a well-lit place, its growth will improve, so it should be placed in a place where it can receive sunlight, but it is best to receive scattered light and avoid exposure to the sun in summer.

Water moderately

When watering Araucaria, follow the principle of "water when the soil is dry, and don't water unless it is dry". Do not water too much or water too many times.

Maintaining the right temperature

Araucaria is suitable for growing in an environment of 25℃-30℃. If it is cultivated normally, the room temperature must not be lower than 8℃, and the temperature in winter must not be lower than 5℃.