Reasons and Prevention of Orchid Bud Rot
The editor will talk about the related content of orchid plants, the reasons and prevention of orchid bud rot, and the introduction will follow.
Many orchid lovers may encounter the situation of orchid bud rot, that is, the new bud of orchid rot. As long as you look carefully, it is not difficult to find the reason. Generally speaking, there are 6 main reasons for orchid bud rot, such as water entering the bud core, injury, pest invasion, etc. Let's analyze the reasons specifically:
1) Carelessness in watering or spraying, causing water to splash into the center of the bud, or being exposed to rain for a long time; coupled with insufficient light, low temperature, and inability to absorb water; even after a heavy rain, the new bud is soaked in water without timely drainage, causing bud rot.
2) Injury caused by potting, dividing plants, pruning old leaves, and daily watering, fertilizing, or spraying, or encountering unexpected accidents.
3) When applying liquid fertilizer, the fertilizer splashes into the bud core without being cleaned up, causing rot.
4) The mother plant is infected with a disease and not treated in time, coupled with the weak disease resistance of the young bud, leading to bud rot.
5) Scale insects, aphids, and red spiders吸吸取 the juice of the bud, and rats bite the sweet-tasting tender buds and leaves, causing harm.
6) Bud rot caused by rotting roots.
Prevention methods for orchid bud rot:
⑴ When watering and fertilizing daily, it is best to pour from the edge of the pot with a ladle; avoid using a hose to spray the orchid plant to prevent mud and water from splashing into the center of the bud. Try not to spray water on the orchid plant during the seedling stage, and if necessary, use a fine-mist spray head, with water droplets not too large, and the leaf surface should not be dripping. If it is a coarse-mist spray head, the new bud must be covered.
⑵ In the Meiyu season of summer and autumn and consecutive rainy days, pay attention to prepare for rain. Or build a temporary rain shed with nylon cloth or plastic film on the orchid plant, or move the orchid plant to a place where it cannot be rained before the rain. And pay attention to weather forecasts, once there is heavy rain or extraordinary heavy rain, emergency measures must be taken to prevent it; if it is not timely to avoid rain, the accumulated water in the pot must be drained after the rain.
⑶ Prevent strong sunlight exposure, high-temperature baking, and lack of ventilation in the hot summer; in the cold winter, pay attention to prevent cold and keep warm to avoid frost damage; the water temperature for watering in winter should be close to the air temperature and not too high, otherwise it may cause scalding.
⑷ Timely disinfection and pest control. During the growing period of the orchid plant, it is necessary to regularly spray with carbendazim, thiophanate-methyl, or other disinfectants to prevent problems before they occur. Once pest infestation is found, spray with pesticides such as dimethoate, aphid net, fast kill, and fenvalerate. Daily security work of the orchid garden should also be done to prevent accidental and unexpected injuries.
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