Causes and Prevention of rotten Shoots of Orchid

Many orchids may encounter rotten buds of orchids, that is, rotten new buds of orchids. As long as you look carefully, it is not difficult to find the causes. Generally speaking, there are six main causes of rotten buds of orchids, such as water entering the bud core, bruises, insect pests, and so on. Let's analyze the reasons in detail:

1) watering and spraying carelessly, splashing into the center of the bud, or being drenched in the rain for a long time; coupled with insufficient light and low temperature, the water cannot be absorbed; even the new buds are immersed in water after heavy rain and do not drain in time, resulting in rotten buds.

2) turning over the basin, pruning old leaves and daily watering, fertilization, spraying carelessly, or encounter accidents, resulting in damage.

3) when applying liquid fertilizer, it was accidentally splashed into the bud heart and did not try to remove it, resulting in rot.

4) the mother plant was infected with bacteria and failed to control in time, coupled with the weak disease resistance of buds, resulting in rotten buds.

5) scale insects, aphids and red spiders absorb the sap of buds, and mice bite sweet buds and tender leaves, causing harm.

6) rotten buds caused by rotten roots.

Prevention methods of rotten buds of orchids:

⑴ daily watering, fertilization, it is best to use ladle spoon from the edge of the basin; do not spray to the orchid plant with water pipes to prevent soil and sewage from splashing into the center of the bud. In the seedling stage, try not to spray water to the orchid plant, if you need to spray water, you must use a fine-eye sprinkler, the water point is not too large, with the leaf surface not dripping is appropriate. If it is a thick-eyed sprinkler, cover the new buds.

⑵ summer and autumn plum rain, continuous rainy season, pay attention to prepare for rain. Or use nylon cloth or plastic film to build a temporary canopy on the orchid plant, or move the orchid plant to a place that is out of the rain before rain. And pay attention to watch the weather forecast, once there is heavy rain, torrential rain, must take emergency measures to prevent; if there is no time to avoid the rain, it is necessary to remove stagnant water in the basin in time after the rain.

⑶ hot summer to prevent strong light, high temperature baking and no ventilation; cold winter should pay attention to keep warm, avoid frost damage; winter watering water temperature should be similar to the air temperature, not too high, otherwise easy to cause scald.

⑷ sterilized and killed insects in time. During the growing period of the orchid plant, carbendazim, topiramate or other fungicides should be sprayed regularly to prevent the disease. Once pests are found, timely spray dimethoate, aphid lice net, quick culling, fenitrothion and other insecticidal drugs. Every day, we should also do a good job in the security of the Orchid Garden to prevent man-made and accidental injuries.