Shade and sun protection are essentialAlthough the temperature has dropped, the weather in early autumn is still mainly hot and the autumn heat is very powerful. Don't remove the sunshade net at this time. Once you get sunburned, there is no recovery. Lighting tips In early autumn, you need to provide shade and protect the orchid from the sun at noon. You can move the orchid outdoors in the morning and evening to receive full sunlight. It can also increase the temperature difference and promote flowering! Take timely precautions against typhoons and rainstorms1. Prevent typhoons Early autumn is a typhoon-prone season, so you must be prepared for prevention. If you grow orchids outdoors, you must check whether the sunshade nets, ceilings, doors and windows are secure. If you grow orchids indoors, you must close the doors and windows in time! 2. Prevent heavy rain The passage of a typhoon is usually accompanied by heavy rain. It is advisable to move the orchids on the balcony indoors in time, and to maintain them outdoors simply by setting up a sunshade net, which can effectively buffer the rain and is also breathable and water-permeable, which is conducive to the growth of orchids. After a rainstorm, the sun will be very hot. At this time, you must ventilate the orchid more often. Otherwise, the soil will be stuffy and hot, and the orchid will easily rot. Timely fertilization for good floweringWhen the temperature drops below 30 degrees, you can consider fertilizing. Appropriate fertilization will ensure good flowering. Fertilization tips 1. You can spray phosphorus and potassium fertilizers on the leaves, or you can bury organic fertilizers, decomposed sheep manure, pigeon manure, etc. in the planting material, and be careful to keep them away from the roots. 2. The principle of fertilizing is to apply small amounts of fertilizer frequently, and it is sufficient to apply once every 10 days in early autumn. Timely watering to prevent drynessThe autumn wind blows and the dust flies. The autumn climate is mainly dry. The surface of orchids planted in clay pots and large-grained planting materials is easy to dry out. Water should be added in time to prevent the leaves from dehydration and drying out. Watering Tips 1. Water when the soil is dry and wet, water thoroughly at one time, and spray water on the leaves more often in the morning and evening to increase the air humidity. 2. For orchids that are growing healthily, you can control the watering to promote flowering in August and September, and then water them when the leaves are about to wilt. Note: When growing orchids in cinnabar pots or plastic pots, you must prevent the soil from being too wet and causing root rot due to heat, especially when the planting material is fine and has poor air permeability. Open the windows for ventilation each time after watering. Disease and pest controlEarly autumn is the peak season for orchid diseases and pests, such as anthracnose, white rot, scale insects, black spot, etc., which are more powerful than in midsummer. Once infected, the leaves will become burnt and blackened, and in severe cases the whole plant will rot and die. Once discovered, the diseased leaves and plants should be cut off and burned immediately. During the disease period, Bordeaux mixture or 1000 times diluted thiophanate-methyl solution should be sprayed on the leaves every week. Windows should be opened for ventilation and weeds should be cleared. |
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