Look at Ye to know the root of the disease

Look at Ye to know the root of the disease

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The root cause of the disease is judged by the characteristics of orchid leaves:

The □ orchid leaves are yellowed and grow normally: the light is too strong.

The leaves of □ orchids turn yellow and the new buds are smaller: excessive light, lack of nitrogen fertilizer and necessary humidity.

Yellowing and shedding of old leaves of □: caused by normal aging or turning over the basin.

□ old leaves yellowing and falling off quickly: too much watering, too often, improper pot turning and planting.

□ new leaf tip scorched: excessive fertilization, planting materials are not clean.

The focal tips of new leaves and old plants of □ were black: excessive dampness and heat in the basin, and rotten roots in the roots.

□ new buds unearthed and then stop growing: there are rotten roots or unclean things next to the new buds, open the breeding material around the new buds, remove the unclean matter and resume growth.

There are scorched spots on the leaves of □ orchids, and there are no yellow spots around them: scorching spots in the hot sun.

□ leaf end appears hot head: the water temperature of watering is too high; the temperature is too high when watering; showers are caught in high temperature in summer, etc.

□ new bud rotten heart: after watering into the bud core, the water can not be evaporated and absorbed, and the unclean breeding material in the basin produces leaf rot and so on.

The leaves of □ orchids were soaked in water around the spots: excessive humidity, basin humidity and air humidity caused asphyxiation, accompanied by leaf rot bacteria. Poor ventilation and ventilation.

Chloasma on □ leaves: caused by heat at the roots.

□ orchid leaves have irregular macula, mesophyll tissue necrosis and depression: virus disease, also known as Balas caused.

There are small yellow spots on □ leaves: caused by beetles.

□ orchid leaves appear purple-black, the back of the leaves are still green: caused by low temperature frost. Lack of phosphate fertilizer can also occur.

□ leaf dehydration, false corm crepe: caused by long-term over-drying and dehydration in the basin.