What if the bamboo and cypress leaves wither?
Some flower friends will ask what causes the dead leaves of bamboo and cypress and how to deal with them. The following is a brief introduction of Uncle Gardener. One reason: the problem of light, bamboo and cypress like semi-shade, suitable for growing in bright scattered light. Under strong light, the leaves turn yellow and will be burned. Especially from April to September, avoid direct sunlight, exposure or excessive drought, otherwise the leaves will be scorched and dull. Usually, they like proper sunshine. Generally, it is better to place the balcony facing north and facing the sun, and light it for 3-4 hours every day to keep the leaves bright. Two reasons: pathogen infection. The phenomenon of bamboo and cypress shoot blight is that it is infected with bamboo and cypress shoot blight. It mainly harms the middle and lower leaves of plants. At the time of onset, the lesion expanded inward from the tip and became straw yellow and concave. There is a brown line at the junction of disease and health, and small black particles appear in the late diseased part. Leaves often die of this disease, but the middle leaves only die at the top. Bacteria often remain on leaves or fall on diseased leaves on the ground, and it is easy to get sick when there is much rain. There are three reasons: incorrect water conservation methods of bamboo and cypress will also cause the tip to be yellow. 1. Before inserting the bottle, cut off the leaves at the base of the cuttings and cut an oblique angle at the base with a knife. The incision should be smooth to facilitate the absorption of water and nutrients. Change the water every 3-4 days. Do not move or change direction for 10 days. /kloc-about 0/5 days, both bamboo and cypress can grow silvery white fibrous roots. After planting for a period of time, the bamboo roots will take root and sprout. When there are too many roots, trim them. In fact, these roots have little effect on the growth of bamboo and cypress, and cutting off the old roots is more conducive to growth. 2. It is not advisable to change water after rooting, and water can only be replenished in time after reducing water evaporation. Changing water frequently can easily cause yellow leaves to wither. Change the water once every 10 day in the early stage to wash away the dirt on the bamboo head. After the growth is stable, the amount of water will decrease due to the evaporation of water. Don't change the water as long as the water quality remains the same. Frequent water changes can also lead to dead leaves. You can add some water on the original basis. Bamboo likes wet environment. Too dry air will cause the tip to burn. At this time, you should always spray water on the branches and leaves. If possible, it is best to spray a small amount of flower fertilizer solution on the leaves every month. Curing agent can be used appropriately. 3. After bamboo and cypress take root, a small amount of compound fertilizer should be applied in time to make the leaves oily green and the branches stout. If you don't fertilize for a long time, the plants will grow very thin and the leaves will turn yellow easily. But it is not suitable for excessive fertilization, so as not to burn roots or grow too fast. Compound fertilizer should be applied l times a month in spring and autumn. According to the data, in order to prevent the overgrowth of bamboo and cypress, it is best to inject a few drops of brandy and a small amount of nutrient solution into the bottle every three weeks or so to keep the leaves green. 4. Don't put bamboo and cypress beside the TV or where the air-conditioning electric fan often blows, so as to avoid the tip and edge of the leaves drying up. If dead branches are found, they should be removed in time and water should be changed in time to avoid infecting other bamboo branches. Putting bamboo and cypress in a ventilated and light-transmitting place indoors is beneficial to photosynthesis and promotes the formation and accumulation of organic matter. Drug control method: a small number of diseased leaves should be cut off and burned in time. At the initial stage of the disease,11/bordeaux mixture, 1000 times 53.8% chlorhexidine dry suspension, or 3000 times 10% high water dispersible granules can be sprayed. When a small number of diseased leaves appear in the pedigree, after cutting off the dead leaves, Dajining ointment can be applied on both sides of the cross section, which can effectively prevent the recurrence or expansion of diseased spots.