Five reasons why trees fall.
Rich trees, evergreen trees, like high temperature and humid climate, poor cold tolerance, seedlings avoid frost, more resistant to water and humidity, but also slightly resistant to drought.
Watering
The rich tree was overwatered and the basin soil was too wet for a long time, resulting in anoxia in the soil, rotting part of the fibrous roots, hindering normal respiration and absorption of water and nutrients, causing leaves to turn yellow and fall off. After the injury, the young leaves turn pale yellow, and then the old leaves gradually turn yellow. watering should be controlled immediately, fertilization should be suspended, and the soil should be often loosened to make the soil well ventilated.
Fertilizer application
If you fertilize too much, the new leaves will be thick and uneven, and the dry tips of the old leaves will fall off. You should immediately stop fertilization and increase the amount of water to make the fertilizer flow out from the drainage hole at the bottom of the basin, or immediately pour the pot, rinse the soil block with water and then plant it again into the basin.
High temperature
In summer, if you put cool flowers (such as cyclamen, Golden Bell upside down, four Seasons Begonia) in a high temperature place to let the strong light shine directly, it is very easy to cause the young leaf tip and leaf edge to scorch, or the leaf yellow to fall off. Move to a well-ventilated shady place in time.
Humidity
The air of the rich tree is dry. When the indoor air is too dry, some flowers that like the humid environment, such as hanging orchids and orchids, often appear leaf tip dryness or leaf edge scorching and so on. Attention should be paid to water spraying, plastic film cover and other methods to increase air humidity.
Disease and insect
Leaf spot disease caused by fungi and other bacteria is easy to cause local necrosis of the leaves, yellow spots or patches appear, the whole leaves wither and fall off seriously, yellow and green mottle appears on the leaves after being infected by mosaic virus, and damaged by shell insects, red spiders and so on, the leaves will also become local yellow, or even the whole leaves will wither and fall off. All should be sprayed in time.
- Prev
Matters needing attention in rhododendron culture
The weather is beginning to be hot, and it is essential for flower friends to help flowers spend the summer. In this paper, we talk about how to manage azaleas in summer. The heat tolerance of rhododendrons has a great relationship with varieties and plant growth, so we.
- Next
Recently, green pineapple is always in love with yellow leaves every day. Green pineapple is almost bald. There are three reasons to pay attention to it.
Recently, I do not know whether the weather is too hot or something, the green apple at home is wilting, there is no spirit at all, and the phenomenon of yellow leaves appears every day. I usually pull out the yellow leaves when I see them. I feel that the green pineapple has become bald and unbleached recently.
Related
- Wuhan Hospital Iron Tree Blooming Result Was Instantly Frightened by the Gardener Master
- Which variety of camellia is the most fragrant and best? Which one do you like best?
- What is the small blue coat, the breeding methods and matters needing attention of the succulent plant
- Dormancy time and maintenance management of succulent plants during dormancy
- Minas succulent how to raise, Minas succulent plant pictures
- What are the varieties of winter succulent plants
- How to raise succulent plants in twelve rolls? let's take a look at some experience of breeding twelve rolls.
- Attention should be paid to water control for succulent plants during dormant period (winter and summer)
- Watering experience of twelve rolls of succulent plants
- Techniques for fertilizing succulent plants. An article will let you know how to fertilize succulent plants.