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Yellowing of bamboo cypress leaves: cause analysis and solution

Bamboo cypress, is our common ornamental plants, it belongs to evergreen trees. But recently some flower friends and Xiao Bian reported that the leaves of her bamboo cypress began to turn yellow. What's the reason? Is there any solution? Pro, don't worry, read along with Xiaobian~

The reason analysis and treatment methods are as follows: 1. Long term water shortage leads to the yellowing of the leaves (dry yellow): the tip or edge of the leaves withers and dries, and the old leaves wither and fall off from bottom to top;

Solution: timely watering, keep wet, but not too wet, watering is best when the surface soil is slightly dry.

2. Insufficient sunlight leads to the yellowing of the leaves of the bamboo cypress: the leaves become yellowish white, the branches are slender, and will not bloom when they grow in the dark or too dark environment

Solution: wash the leaves clean and try to keep them in a better light range.

3. If the temperature is too high, the leaves will turn yellow: if the temperature is over 35 ° C, the leaves will turn yellow, spot or dry;

Solution: put the bamboo and cypress in a cool place to avoid strong light.

4. When the temperature is lower than 2 ° C, it may be frostbitten or frozen to death;

Solution: put the bamboo and cypress in a closed room to prevent the invasion of cold wind.

5. The long-term lack of fertilizer led to the yellowing of the leaves (lack of fertilizer yellow): if the water and fertilizer were not enough, the leaves would not be clear green and the tips would be yellow;

The solution: apply acid fertilizer, and it is the best to irrigate fertilizer liquid, so we should apply less and frequently.

6. Plant diseases and insect pests lead to the yellowing of bamboo cypress leaves: red spider appears on the leaves, or the leaves are locally burnt yellow, which is anthrax, scale insects and leaf spot;

Solutions: to control red spider, we need to spray dicofol, nisolone, etc.; to kill scale insects, we need to spray chlorpyrifos, chlorpyrifos, etc.; to treat anthracnose and leaf spot, we need to spray carbendazim, metoprolol, Aimiao, etc.

The cultivation methods of bamboo cypress are as follows: 1. Upper basin: when the seedlings are put into the basin or the large plants have been raised for several years, first put 2-3cm thick coarse-grained substrate as the filter layer at the bottom of the basin, and then spread a layer of fully decomposed organic fertilizer as the base fertilizer, with the thickness of about 1-2cm, and then cover a thin layer of substrate, with the thickness of about 1-2cm, and then put into the plant to remove the fertilizer Separate from root system to avoid root burning.

2. Pruning: in winter, when the plant enters into dormancy or semi dormancy period, it is necessary to cut off the weak, disease and insect pests, dead, over dense and other branches. It can also be combined with cutting to arrange the branches.

3. Change basin: as long as it is well maintained, it will grow very fast. When it grows to a certain size, we should consider changing it into a larger basin to let it continue to grow vigorously.

4. Take off the pot: put the flower to be changed on the ground, pat the basin around with palm to make the root system vibrate and separate from the basin wall, put the flower pot upside down on the left hand, gently clamp the plant with the index finger and middle finger of the left hand, hold the basin edge with wrist and fingertip, pat the bottom of the basin with the right hand, and then push the root soil down from the bottom hole with the mother finger to let the plant take off. After taking off, gently pat the basin soil with both palms to let the redundant soil fall off.

Healthy bamboo and cypress

matters needing attention:

1. When the bamboo cypress was first unearthed, it was curved, growing stems first and then leaves. The unearthed rhizomes are easy to be infected by fungi. Because thiophanate methyl and carbendazim are sprayed alternately, weeding should be done frequently in the bud and seedling stage, and the bud and seedling of bamboo and cypress are tender. The management of water and fertilizer should be strengthened, and watering should be carried out every certain time.

2. The growth of bamboo cypress is slow. First, it is planted in nutrition bowl. One year later, when the bud has one leaf and two hearts, it can be transplanted into the field. Bamboo cypress is a kind of taproot plant, the main root is especially developed, because cutting off the main root is beneficial to the growth of lateral root.