How to raise Dendrobium candidum how to cultivate Dendrobium candidum and matters needing attention

Dendrobium tinctorium is an ornamental plant with flowers. The color of its flowers is very gorgeous. There will be some shallow stripes on the petals, which are very characteristic. Dendrobium rhododendron is very popular in the market at present, and many people like to cultivate it. But there are also many skills when it comes to farming.

How to raise red flowers

1, soil: peat moss, fern roots, bark pieces and charcoal and other light, good drainage, breathable soil.

Humidity: The air humidity of cultivated Dendrobium is large, and good ventilation is required.

3. Temperature: Dendrobium likes warmth. Humid and semi-overcast environment, not cold. The optimum temperature for growth is 15~28℃

4, lighting: planting place must be sufficient light, keep ventilation. It is more beneficial to the growth and flowering of Dendrobium.

Dendrobium tinctorium culture method

1. Selection of basin soil. According to the size of Dendrobium safflower seedlings, different specifications of flower pots should be selected, but large potted seedlings should not be used. Relevant cultivation materials must be soaked in clean water for more than 1 day before use. The bottom of the basin should be padded with large tiles or broken bricks, and the depth should reach about 1/3 of the bottom of the basin. Then put the orchid seedlings in the center of the basin, insert a thin bamboo pole beside it to fix the orchid seedlings, and then fill in other cultivation materials. Pay attention to separating the roots with materials.

2. Water and fertilizer management. At the beginning of planting, put it in a cool place with scattered light, spray some water only on the leaves, do not water the pots. After about 10-15 days, move to shade shed for maintenance after new roots sprout. During the vigorous growth period, water once a day. In dry season and hot summer, water should be sprayed on the ground around the flowerpot to maintain high air humidity and pay attention to good ventilation. Winter dormancy period should be less watering, late air humidity is too small to often water moisture. Because Dendrobium is aerial root, it is necessary to spray appropriate foliar fertilizer as nutrient solution. Foliar fertilizer can choose potassium nitrate, potassium dihydrogen phosphate, etc., as well as imported ternary compound fertilizer and diluted MS medium. Generally, one week after transplanting, one thousandth of potassium nitrate or potassium dihydrogen phosphate is sprayed after new roots are formed, once every 7-10 days, and continuously sprayed for 3 times. spray 3‰ ternary compound fertilizer every 10-15 day after sprouting.

Notice of red flowers.

The canopy density of Dendrobium rubrum growing ground is about 60%, so it is necessary to prune epiphytes frequently to avoid too much shade or insufficient canopy density. Every spring before the new whole, combined with the old stem harvest will be the cluster of dead stem cut off, and remove the disease stem, weak stem and diseased roots, planting 6-8 years after the cluster growth situation to turn over the stumps and re-branch reproduction.

Common diseases and insect pests of Dendrobium rubrum and their control methods

1. Philippine Shield Scale. Prevention and control methods: mainly to prevent, select healthy plants for reproduction, and secondly, because scale insects occur when the water is too wet and the ventilation is poor, therefore, daily management should pay special attention to environmental ventilation to avoid excessive humidity. Once a small number of vectors occur, use a soft brush to gently remove the insects and rinse them with water. When the nymph has just hatched and has not formed waxy shell, 40% dimethoate emulsion or 80% dichlorvos emulsion 800~1000 times can be used to control it. Early spring and early winter can be used stone sulfur mixture control.

2. Black spot disease. Prevention and control methods: serious disease performance, can be artificially cut off sick leaves. Chemical control: 1:1:150 Bordeaux mixture or 1000 times Dorin mixture to prevent and control its development.

3. Coal pollution disease. Control method: spray 1-2 times with 50% carbendazim 1000 times solution or 40% dimethoate emulsion 1500 times solution.

The cultivation method of Dendrobium affinis can be started from its growth habits, and the proportion of soil and the selection of pots must be done well when cultivating. In the later stage of breeding, management needs to be strengthened, and the amount of fertilizer and water should be controlled well, so as to ensure its growth.