Common problems in Orchid cultivation and Management

Common problems in Orchid cultivation and Management

one。 The common problem with most orchids:

a. Blade:

1. The leaves are dark green and the appearance is healthy, but the plant does not bloom, which may be due to insufficient light. Check the degree of light and increase the amount of light.

two。 The leaves are not glossy, and finally wither, the plant does not absorb enough water, check the root system. If the root system grows luxuriantly and the appearance is healthy and strong, it means that the plant is not hydrated enough. If the root system is not healthy, move the basin as soon as possible. 3. The leaves gradually yellowed, too much light or not enough nitrogen fertilizer.

4. There are clear watery spots on the leaves, usually bacterial infection, change the basin and treat it with fungicide. 5. The upper leaves or the leaves under the sun are curved and albino, the sun burning and the amount of light is too strong.

6. The new leaf is sunken, resulting in tissue disintegration due to low water temperature or low air temperature.

7. Leaf tip blackening and browning, root withering, excessive fertilizer damage, check fertilizer formula and wash at least once a month. When the plant is too dry, water should be supplied instead of fertilizer at the same time.

8. The leaves turn yellow, turn brown and die, fungal damage, too much water supply, excessive moisture and disintegration of the medium, high relative humidity and low temperature. The treatment is to use fungicides, cut off the dead or brown leaves, and re-transplant. The root system should be completely dry before supplying water.

9. Black stripes appear on the leaves, caused by the virus.

b. Newly grown leaves:

1. Growing fast but softening, too much nitrogen fertilizer.

two。 New leaves are small, growth is hindered, or cannot grow upward, and plants are stressed: weak roots, insufficient light, high temperature, nitrogen deficiency, and so on.

c. Buds, flowers, and pedicels:

1. The bud turns yellow and then falls, the temperature is too high, the amount of light is too high or too low, the relative humidity is too low, the water supply is not suitable, lack of trace elements, weak root system and so on.

two。 The bud can not fully open, genetic characteristics, temperature is too low, relative humidity is too low, thrips damage. 3. The flowers are too small, the color is not as bright as before, the amount of light is insufficient or the temperature is too high.

4. Flowers wither rapidly, the temperature is too high or too low, exposure to direct sunlight, relative humidity is too low, lack of fertilizers or trace elements, inappropriate water supply, poor root development.

5. The number of flowers is too small, the plant is weak, the amount of light is too low, lack of phosphate fertilizer (P).

6. Brown spots or mosaics appear on the flowers, caused by the virus.

7. The arrangement of flowers is poor, and the arrangement angle of flowerpots should be changed in the stem stage.

d. Root:

1. The roots turn black or brown, the roots are damaged and damaged by root rot fungi, and the damaged roots should be removed. two。 The root process has bite marks or loss of root process, and is bitten by insects.

3. Root process death, accumulation of mildew points, from poor water quality, too much fertilization, insufficient leaching times, and so on. 4. The root is deformed and lacks chlorine

5. Stunted root system and lack of trace elements

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