Culture methods of Cymbidium mongolica

Cymbidium is a semi-epiphytic herb of the genus Orchidaceae, with a pseudobulb ovate to ovate-conical, with a distinct neck at the top, often growing under evergreen broad-leaved forests or on humic soil or moss-covered rocks on the edge of shrubs. This flower is cultivated and has high horticultural value. Let's take a look at the cultivation methods of Cymbidium.

Growth habits of Cymbidium paniculata

Garlic orchid prefers cool, ventilated semi-shady environment, cold-resistant, not dormant in winter, and the lowest temperature of overwintering is above-10 ℃. It is suitable to be planted in loose, breathable and well-drained fern roots, water moss or humus soil. I like the climate with four distinct seasons. The summer temperature had better not be higher than 25 degrees Celsius, and the temperature of 30 ℃ is tolerable occasionally for a few days. Winter dormancy period, the temperature is required to be close to the freezing point, that is, the ideal 1 to 5 ℃, this temperature is basically the same as the general refrigerator freezer, low temperature dormancy for a period of time will sprout.

The Propagation method of Cymbidium

Garlic orchid is usually propagated by split-plant or aseptic sowing, because its embryo is underdeveloped, it can only be sowed in the medium under aseptic condition, and the ramet is carried out after anthesis. Like warm, humid and semi-shady environment, planted in peat, moss or humus in shallow pots. Newly transplanted plants should be watered to prevent false bulbs from rotting. Thin fertilizer should be applied in the growing season, the rhizosphere should be well ventilated and drained, and gradually enter dormancy in autumn, until the basin soil remained dry after the leaves dried up until the next spring began to germinate.

Culture methods of Cymbidium mongolica

1. Selection of pots: both pottery pots and plastic pots are fine. Pottery pots need to be watered more frequently. The evaporation of water on the surface of the pottery basin is beneficial to keep the root environment cool. The advantage of plastic basin is that it does not need to be watered frequently, and it is clean and light. Many people grow them in half-height flowerpots because the roots of wild garlic orchids are shallow. It has been found that if deep pots are provided, they can grow well-developed roots. Be sure to clean and disinfect the flowerpot before planting.

2. Substrate: the substrate for potted plants should be loose, permeable and well ventilated, and the water retention capacity should be strong. Therefore, the general garden soil and the commonly used pot soil are not suitable for planting garlic orchid. The cultivation substrate of epiphytic or semi-epiphytic orchid can be used as pot material, and there can be many kinds of proportions. the more commonly used ones are 6 pieces of bark for planting epiphytic orchids, 1 part of coarse-grained perlite, 1 part of moss cut 5mm and 1 part of crushed peat.

3. Put on the basin: the garlic orchid should be put on the basin or change the basin during the dormant period. generally, at the end of January and the beginning of February, the pseudo-corm should expose 1/3 of the basin soil, and the old root does not need to be trimmed to help stabilize the corm. The planting distance between the bulbs is about two centimeters. A few varieties of pseudo-corms are required to be completely buried in the matrix. When potted, the lower part of the pot is filled with the thicker particles mentioned above, and the finer ones are filled on top. Fill the periphery of the newborn pseudobulb with small pieces of bark and shorter moss.

4. Watering: the key period of watering is the beginning of the growing season, when the root system is just beginning to grow and the florescence is coming to an end. Small water should be given to maintain only the micro-tide of the matrix in order to promote rooting. At this time, if too much watering, root rot is very easy to occur. After a period of time, when the root system is basically good, it can begin to be watered in large quantities.

5. Fertilization: garlic orchid likes to apply small fertilizer frequently, and fertilization can only be carried out in the flood period. at the initial stage, the fertilizer with higher nitrogen content is applied, and then the formula with higher phosphorus and potassium fertilizer is changed. In Australia, horse dung is directly used as a substrate, and it has also been successful.

6. Light: garlic orchid can tolerate direct sunlight, but the best shade is 50% in summer. Outdoor shade is a good place to cultivate, and like other orchids like ventilation.

Disease and insect control of Cymbidium mongolica

1. Leaf spot: leaf spot mainly harms the leaves and buds of garlic orchid. 1% Bordeaux solution, 50% carbendazim, 50% methyl topiramate 1000 times or 40% dimethoate emulsion 1500 times can be used to control.

2. Sheath rust: usually on the upper and lower surface of the leaf, there are few protruding blisters on the stem, containing yellow, orange, rust, or even purplish-black powdery spores. Rust is not fatal and leaves do not die, but it weakens plant growth. In addition to cutting off diseased leaves, the control method can be sprayed with 65% Dysen zinc powder 500-600 times or copper-containing fungicides.

3. White silk disease: White silk disease mostly occurs in the mildew and rainy season. At the beginning of the disease, the leaf base was covered with white silk. Causing the rhizome to rot. The control method is to remove the bacteria-carrying basin soil and sprinkle it with pentachloronitrobenzene powder or lime. Radical cure: pay attention to ventilation and light transmission, basin soil drainage is good. Seriously diseased plants will be burned.

4. Anthrax: the disease spot first extends from the leaf tip to the rhizome, first brown, then gradually expands and increases, and many dry black spots appear, leading to the death of the whole plant in serious cases. In addition to actively improving the environmental conditions of Bodhisattva, during the onset period, 50% methyl topiramate wettable powder 800-1500 times can be sprayed once every 7-10 days, and then supplemented with 1% equivalent Bordeaux solution, once every semimonthly, 3 times continuously.

5. Scale insect: the shell insect parasites on the edge or back of the leaf to absorb juice, causing the plant to wither. In severe cases, the whole plant will wither and die, and the secretion of the shell worm will also cause the occurrence of black mold. It can be sprayed with 1000 times of 50% omethoate emulsion, 50% malathion emulsion, 25% imidophos emulsion or 80% dichlorvos emulsion, generally spraying more than 3 times every 5-7 days.