What to do about black canes on roses? Find the cause and deal with it in time, and they will grow fast and bloom abundantly

Xiao Qi

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Black appears on the pruned rose branches. What is going on with the rot spreading toward the main stem? If the black cane goes from top to bottom, this problem is not serious. As long as it is not black from the bottom up, you can just cut it off directly.

This situation is usually rot that appears after the air humidity becomes too high. You can prune off the rotted part. Apply carbendazim to the wound, then wrap it with something like a thin plastic film. After three to five days, remove the wrap and that is fine.

This situation is mostly caused by high air humidity or cloudy days. This requires us, when pruning branches for flowers, to choose as much as possible to prune when there is good ventilation or on a sunny day. Once ventilation is good, the wound can dry quickly. If rot and similar situations do not appear, you can also apply carbendazim to the wound or seal it with wax, both are fine. Whether pruning branches or transplanting seedlings, choose as much as possible to do it on a sunny day. The wounded cut from pruning branches can heal quickly. After repotting damages the root system, it also will not rot roots because of cloudy days or high air humidity. Generally this situation will not occur. As long as you avoid these two points, everything will be just fine!

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