Is it easy for the stems to turn black after pruning roses?
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Is it easy for the stems to turn black after pruning roses?
It is easy for the stems to turn black after pruning roses. If the cut is not disinfected and directly potted after pruning, it is prone to bacterial invasion, leading to black stems in the plant.
Reasons and treatment methods for black stems in roses
Black stems in roses may be caused by root rot or diseases and pests. If the black stem extends from top to bottom, it may not have formed calluses, or the wound was not healed during pruning. After it happens, cut off the black stem part, make the cut edge heavier to avoid re-infection, and after pruning, you can seal it with wax. Also, pay attention to watering and fertilizing.
What are the reasons for black stems in roses?
1. Incorrect pruning position. When pruning, if the distance is not far, the nutrients and growth substances stored in the buds can also provide nutrition for the cut. If the distance is too far, due to the limitations of the body's transport mechanism, nutrients (G-Y) cannot be supplied, and the branch will turn black.
2. Wound infection, human wounds are easily infected, and so are plants. The reasons for wound infection may include the pruning shears not being disinfected or not sharp, causing crush injuries, or the wound being soaked in rainwater.
3. If the root system is poor, the plant will be weak, with poor resistance, easily infected, and slow to heal.
The above is some knowledge and tips about whether it is easy for the stems to turn black after pruning roses. I hope this article can provide you with some help!