Is the weather suitable for planting succulents in Kaixian County?

The weather in Kaixian County is suitable for planting succulents.

Generally speaking, succulents are easy to raise, and they can't die without light, but good ventilation and light are the key to raising "meat". At the same time, we should pay attention to water control, not less. Lack of water or sunshine is just a bad appearance, but it won't die. Leave more meat without watering for a thousand and a half days.

Propagation of succulents:

1. Sowing: The advantage is that a large number of seedlings can be obtained at one time. Among succulents, except for a few species that can pollinate themselves, most of them belong to insect-borne flowers or bird-borne flowers, and they must be pollinated artificially to bear fruit. The life span of the seeds of succulent plants is very short, for example, the life span of the seeds in Tang Guang is only a few weeks. Generally, the seeds of succulents will be stored at room temperature for 1 year, and the germination rate will drop rapidly. For this reason, many succulents are harvested and sown immediately after the seeds are ripe, or stored in the following spring sowing. Different families and genera have different sowing and germination times. It can germinate 2 days earlier and 25 days later.

2. Inserting leaves: Hypertrophic leaves are often placed on a slightly wet sand bed or loose soil surface, which will soon take root, and adventitious buds will grow at the base of the leaves to form small plants, such as Tianzhu, Shi Lian and Daye.

3. Stem cutting: During the propagation of succulent plants, the branches are cut into sections for cutting, such as desert rose, Zi Long horn, Rosa davurica, Caiyunge, etc. Desert rose, African overlord tree, breeze, etc. White milk will flow from the wound. Be sure to clean them before cutting and dry them slightly for better results.

4. Root cutting: For rare varieties of Liliaceae, the roots are thick and developed. Cut off the mature fleshy roots and bury them in the sand bed, keeping the upper part slightly exposed, so that new buds germinate from the top of the roots and form complete small plants.

5. Grafting: In succulents, grafting is often used to propagate spotted brocade and improve varieties. Such as overlord whip as rhizome, grafting spring peak; Horse teeth browse the tree as a rhizome and graft the dance of elegant music; The grafted African overlord tree was decorated with African overlord tree as rootstock; Using rhinoceros horn as rootstock and grafting Zi Long horn has a good ornamental effect. But in the process of grafting, because the plant contains white emulsion, it is sticky. Therefore, the grafting operation should be fast and skilled in order to succeed.

6. ramet: ramet is the simplest and safest way to breed succulents. As long as it is a rosette leaf or a cluster of succulents, it can be propagated through its buds, stems, bulbs, tubers and small plants, and it can be carried out when changing pots in spring. Of course, among the succulents, there are varieties with spotted brocade, such as Phnom Penh Huweilan, Raytheon Princess Brocade, Sleepless Brocade and Green Jade Fan Brocade. , must be branched and propagated to maintain the purity of its varieties.

Pest control and succulent smelting;

1 main diseases of succulents

In recent years, succulents are loved by people because of their unique shape, extensive management, diverse varieties, easy reproduction, less pests and diseases and strong air purification ability. Although succulents are famous for their few pests and diseases, they are rich in water. If the management is improper and the environment is not suitable, it is easy to be infected by germs in the process of transplantation and management, leading to poor growth. For example, bacterial soft rot caused by corn borer is a fatal disease of bottle orchid; The main diseases of cactus are bacterial spot disease, soft rot, Armillaria stem rot, basal rot, Alternaria aurea and stem swelling. Among them, the bacterial spot disease of cactus is caused by carrot soft rot, and the pathogen of cactus soft rot is Candida boidinii. The infected stem is black inside, then soft rot inside, and not rot outside, which is serious in rainy season and high humidity. Agave seedlings in Phnom Penh are prone to diseases. Wet rot spots first appeared at the tip of the leaf, spread to the whole leaf a few days later, and then spread to the base of the stem, which eventually led to the rot and death of the whole plant and gave off a pungent sour taste. Fusarium solani is the first pathogen of the disease. Is the second pathogen of this disease. Pectin genus. It has a weak effect on agave alone, but it can enhance the pathogenicity of Fusarium solani to agave. The leaf spot of Euphorbia species Kirin has black spots on its early branches, which gradually expand into patches with the passage of time, and finally the whole plant turns black and dies.

2 Analysis of the causes of diseases

2. 1 Most of the transplanted succulents are native to Central Asia, Africa and America, so most of them are imported. The quarantine department stipulates that succulents with roots are forbidden to carry soil, so most succulents need to clean the soil of the roots, trim the roots, apply fungicides to the wounds, air-dry them until the roots are dry before transplanting, and cannot be watered immediately after planting. In the process of cleaning and pruning the root system, if it is not carried out according to the regulations, the wound site will become a way for bacteria to invade, and bacteria and viruses can easily infect plants through the root wound.

2.2 Improper cutting operations succulents often reproduce asexually, usually by cutting, branching and grafting. Cuttings are mainly used, which will inevitably produce wounds. If the wound is not completely healed, it is easy to be infected with the virus after contact with the cutting substrate. Moreover, the cutting substrate is mostly a mixture of vermiculite and perlite. Although vermiculite has strong water retention, fertilizer retention, heat absorption and heat preservation, which is beneficial to the rooting of transplanted plants, at the same time, the high temperature and high humidity environment created by its strong water retention ability is also conducive to the growth of bacteria, which easily leads to plant rot and death.

2.3 The soil moisture is too high. Many succulents whose roots have water storage function, such as Euphorbia, will rot if the soil is not easy to dry and ventilate. Another example is stem rot of Armillaria cactus. When the soil humidity is high, the infected tissue at the base of the stem begins to rot, and white hyphae grow, which affects the main root system of cactus and enters the soil to infect other adjacent cacti.