There are several ways to call it: dragon blood tree, mountain kelp and dragon beard iron. The leaves of Longxu are plump and shaped like a sword. It is a very popular indoor foliage plant with its gorgeous colors and shining golden light under the sun or light. It's easy for a poorly cultivated tree to turn yellow and split its leaves. Today, Xiaobian will share with you the reasons and solutions for turning yellow.
The common reasons and treatment methods: 1. Watering too much
The principle of watering a long beard tree is to see it wet when it is dry, and then water it after it is completely dry. Especially in winter, the amount of water should be reduced, and it can not be poured into the heart of the tree when watering. 2. Direct sunlight is too strong
Longxu tree likes to be warm and afraid of severe cold, likes to be illuminated but afraid of the sun exposure. If the leaves are yellow and the shins are soft and unable to stand upright, it is necessary to see if they are rotten. If they are rotten, they should be cut and cleaned in time. Then turn over the soil, pour some water, put the plant in a cool and ventilated place for a period of time, and new shoots will grow naturally.
3. Pests
The main insect pest of the Longxu tree is the red spider. There are dense yellow spots and small yellow spots on the surface of the leaves. Spiders often hide in the back of branches and leaves or in dense places. They are easy to catch by hand. If chemical agent is used for treatment, 20% dicofol emulsion can be used, and 800-1000 times water can be added to make solution for spraying. Points for attention: spring, summer and autumn are the vigorous seasons for the growth of Dracaena Dracaena. During this period, the grower must fully meet the needs of water, nutrients and temperature to make it grow healthily.
1. Soil and fertilizer: longxutie has high requirements on soil, so it should choose the culture soil with loose and fertile, good drainage and air permeability, rich in organic matter. Generally, 5 parts of garden soil, 3 parts of rotten leaf soil, 1 part of rotten organic fertilizer and 1 part of river sand are mixed. There is not a great demand for fertilizer for the Longxu tree. In the growing season, the compound fertilizer can be applied once or twice a month.
2. Watering: as a sun loving and shade tolerant plant, it can be watered at ordinary times to irrigate the top and keep the soil moist.
3. Light: the Dragon bearded iron dragon bearded tree not only likes the warm and humid environment and sunlight, but also can withstand the shade. Of course, it's better to put the flowerpot on the windowsill in the southeast direction to fully receive the sunlight. In summer, proper shade should be provided. Generally, the illumination is 40% to 50%.
4. Temperature: the most suitable growth temperature of longxutie is 20-28 ℃. If the temperature is high in summer, over 32 ℃ or below 15 ℃ in winter, longxutie will be in dormancy or semi dormancy.
5. Pruning: the leaves of the whisker are divergent, basically do not need to be pruned, just subtract the yellow leaves in time, so as to avoid affecting the beauty.