What about the yellowing of five-needle pine leaves (needles)

When the five-needle pine raised by flower lovers comes in summer, the leaf tips of the plants turn yellow and some of them die in late autumn, which will greatly affect the ornamental value. What is the cause of this phenomenon? The five-needle pine gets its name because of the clump of leaves. The plant is short, the growth is slow, the leaf is short and the branch is dense, the posture is elegant, the tree shape is graceful, it is an excellent tree species for making bonsai.

In the middle of summer and early winter, part of the needles in the middle of the branches often appear irregular yellowing, which is the general manifestation of the normal metabolism of five-needle pine. The investigation of soil pH, temperature and moisture shows that the main reason is not improper fertilization, but mainly due to poor water control.

First, the basin soil is often too wet, coupled with poor drainage and stagnant water in the basin, causing lack of oxygen in the soil, causing rotten roots and yellowing needles.

Second, the hot sun exposure, the basin soil is too dry, the five-needle pine will also appear top needle tip scorched, if continue to lack of water, the plant will eventually die

Third, the five-needle pine has been put indoors for a long time, lack of light and air, which violates the habit that the five-needle pine should receive light outdoors, or suddenly move to the outdoor to encounter exposure, there will also be a yellowing phenomenon.

In view of the above reasons, we should actively take corresponding prevention and rescue measures, spraying the chemical "new high-fat film" to prevent water transpiration, resist sun exposure, moisturize and preserve soil moisture in dry seasons, and reduce the adverse effects of continuous overcast and rain on the normal growth of five-needle pine.

Through the use of "new high-fat membrane", adjust the balance of water in the plant body, so that plants can thrive in harsh environment.

In the middle of summer and early winter, part of the needles in the middle of the branches often appear irregular yellowing, which is the general manifestation of the normal metabolism of five-needle pine. However, when the five-needle pine cultivated by some flower lovers comes in summer, the leaf tips of the plants turn yellow and some of them die in late autumn, which will greatly affect the ornamental value. The reasons are as follows:

1, watering too frequently, or more Rain Water in June every year, the basin soil is often too wet, coupled with poor drainage and stagnant water in the basin, causing anoxia in the soil, causing rotten roots and yellowing needles.

2. In the hot summer, the water evaporates quickly and is not watered enough, which will cause the needles to scorch. If the hot sun exposure, the basin soil is too dry, the five-needle pine will also appear top needle tip scorched, if continue to lack of water, the plant will eventually die.

3. The five-needle pine has been put indoors for a long time, lack of light and air, which violates the habit that the five-needle pine should receive light outdoors, or suddenly move to the outdoor to encounter exposure, the same will happen. In order to avoid the withering and yellowing of five-needle pine leaves, corresponding prevention and rescue measures should be taken according to the above reasons.

In view of the yellowing of the leaves of the five-needle pine, it is best to bury the five-needle pine basin in the high-cool soil to keep the tide and not much water (the root is afraid of waterlogging and should often spray water on the page). If there is scattered light, don't bake it in the sun. The five-needle pine likes the sun, but it is necessary to gradually increase the light, remove the withered and yellow leaves, strengthen maintenance, and make it beautiful when it gradually sends out new buds.

Time: 2019-06-01 Click: