Orchids have always been one of the favorite flowers for flower friends to grow. But many flower friends will encounter various problems when breeding orchids. A fine orchid has withered its leaves for some reason. Today, I will share with you the experience of how to deal with the blight of orchid leaves, hoping to help you.
orchid
Leaf wilt
Improper watering. Orchids like humid conditions, but don't overwater them. Too much watering causes roots to rot and leaves to die.
Improper fertilization. Less fertilizer, orchids do not get enough nutrients will die leaves. Too much fertilizer will burn seedlings, and the leaves will surely dry out.
The humidity is too low. The air humidity is low, and the orchid leaves are rough and dull. Too much dry leaves will die.
Too much light. Orchids are sun-loving flowers, so don't put them in direct sunlight. .
The temperature is not good. Orchids thrive in warm environments. Cold or freezing temperatures in winter can cause orchids to die. Summer temperature is too high, orchids suffer from the heat, the base of the leaves begin to rot, will produce the phenomenon of dead leaves.
Get sick or suffer from pests. Orchids often occur leaf tip dry, even the whole leaf wither phenomenon, the main reason is orchid anthracnose and round spot caused by.
Air pollution. Orchids are very sensitive to air pollution, such as oil smoke, soot, paint, sand insect agents, etc., a little carelessness will cause orchids to die or even die.
Change pot change soil adaptation period. Changing POTS or soil can damage orchid roots. After re-planting, they did not adapt to it for a while, and the leaves did not absorb nutrients in time, so there will be drying phenomenon.
Water is the source of orchid life, is the root of orchid growth. Orchid watering as far as possible to see dry see wet, dry soil does not water, watering it through. Do not pour fresh tap water, rain is best. Water often in autumn, and the soil should not be too wet in winter.
Orchid fertilization should be light rather than thick, the orchid leaf surface is oily to show that there is no lack of fertilizer, and the leaf surface is relatively dull. Orchids grow slowly, generally require less fertilizer, and often use thin fertilizer application method. When orchids are thriving, fertilize them every 7 days. No fertilization every year when it is hot, cold and rainy.
Usually, the humidity required for the growth period of orchids can not be less than 70%, and the winter dormant period is about 50%. The air humidity is higher at night than during the day. Water or spray the orchid leaf surface, generally in the evening to the leaf surface sprinkling water, be sure to ensure that the leaf surface can return to dry at night.
Orchids love shade and should not be exposed to too much direct light. To shade in summer and autumn, it is necessary to adjust the light reasonably to facilitate its robust growth.
Different orchid species have different requirements for temperature, too high and too low temperature is unfavorable to orchid growth, the best temperature for orchid vegetative growth is between 20-35 degrees Celsius, below 15 degrees Celsius into reproductive growth. Take care to regulate the temperature around the orchid.
Orchid should not use pesticides, use some pollution-free pest control methods. The orchid leaves that have been dried out should be cut off manually if they are not too serious, and the dry parts should be cut off with sterilized scissors.
When the air quality around the orchid is not good, timely ventilation, the place is best far away from the fume.
Orchids generally change POTS and soil once every 2-3 years or so. When re-entering the pot, pay attention to protect the orchid root system. Wait for orchids to pass the change of pot and soil adaptation period.