What should I do if the buds of the Chinese rose are bitten by insects?
Today's tip sharing: the experience related to the cultivation of Chinese roses when their buds are bitten by insects will surely be helpful to you. Let's learn about it together!
Recently, in a home flower cultivation training camp, a flower enthusiast asked such a question. Her Chinese rose was first laid eggs by the rose sawfly and then bitten by insects, suffering from bacterial infection, with a section of the epidermis on the branch turning black.
Facing such a Chinese rose branch, pruning is definitely necessary. It can be seen that due to the wound infection, not only some of the epidermis of the branch has turned black, but the branch also has a slight yellowing. If no treatment is done, it will definitely be pruned later.
However, this branch is still quite thick and strong, and it would be a pity to cut it off directly. So, I suggested to our flower enthusiast to apply a high-pressure treatment. If it survives, we can have another seedling as a backup.
Specific method: High-air layering is also a propagation method of layering. It has a high survival rate. For this problem branch, the following treatment is suggested:
1. Clean the black part of the epidermis, make a ring cut above and below, and it should include some healthy epidermis.
As shown in the above image, the red框 part should be ring-cut. After ring cutting, it should be涂抹 with a multi-bacterial solution, with a concentration of 500-800 times, applying it with a cotton swab to the ring peeled area.
After the multi-bacterial solution dries, apply a rooting hormone. If there is rooting powder, it can be applied directly. However, for this kind of diseased branch, it is recommended to use a reliable rooting hormone, as most of the free rooting powders are psychological安慰 without much practical significance.
After handling the ring cut, wrap one end with a plastic bag and fill it with sterile soil, such as perlite, vermiculite, or moss, and then wrap it well.
Like this picture, although this picture is from an earlier layering that has already produced a lot of roots.
This is a rescue layering for our flower enthusiast's diseased branch. Layering can also be used for propagation in daily cultivation.
When doing high-air layering, it is essential to select the right branch for layering. The branch should not be too soft or too thin, or it may easily break.
What should I do if the buds of the Chinese rose are bitten by insects?
Select the part of the branch to be layered and first perform a ring cut. The width of the ring cut should be 1.5 times the diameter of the branch, not too wide, or the branch may break easily, and not too narrow, or the wound may heal and not grow roots.
To promote rapid root growth, you can apply a rooting hormone directly by dipping a cotton swab and wiping it on the cut epidermis. Then wrap the soil with a plastic bag.
Usually, under higher temperatures, roots can grow within 20 days when a rooting hormone is applied. Without using a rooting hormone, roots will grow naturally within 40 days, and if the temperature is low, it will take longer.
One thing to note is that when doing high-air layering, if the plastic bag is transparent, it is best to wrap a layer of black tape around the outside of the plastic bag, or it may grow moss. Too much moss can cause hypoxia and affect root growth.
Let's take a look at the result of high-air layering done by Green Enthusiast Network a month ago.
This is the result of high-air layering on a rose stock after 30 days. Are these roots impressive?