Metabolism, the condition of the fallen leaves in black pine may be normal metabolism; spraying the pharmaceutical agent, the leaf on the top of the top of the peculiar disease will occur, which can spray the diluted multi -bacterial spirit to relieve it; Soil discomfort, soil plates or neutrality can cause black pine to fall off, and need to be replaced with new soil to cultivate.
1. Metabolism
Black pine leaves have a yellow drop in autumn leaves. It is a natural falling phenomenon and belongs to normal new city metabolism. During daily maintenance, the old leaves can be promoted to fall off by water control, so that the leaves can be clear and neat, and the consistency of the leaf color can make the plant more ornamental.
2. Spraying the agent
If the black pine is only yellow at the top of the leaf, the middle leaves and the bottom are all green, it may be infected with red blight disease Essence At this time, the diluted multi -bacterial solution can be sprayed for treatment, sprayed once a day in the morning and evening, and sprayed for about half a month. The yellow pine leaves can be relieved.
3. Soil discomfort
Black pine is suitable for loose and breathable slightly acidic soil. The condition of yellowing and falling off. At this time, it is necessary to mix the humus soil, coarse sand, and vegetable garden soil into new cultivation substrates. After the transplantation is completed, place the rotten pine bark on the surface of the soil.
4. Sullen the environment
Black pine is suitable for growing in a ventilated and cool environment. Make the leaves yellow. At this time, the black pine needs to be transferred to the indoor ventilation environment to slow down the pot to ensure the circulation of indoor air.
