Early Spring Rose Seedlings Wither
Comprehensive analysis of the reasons for the sudden withering of new rose seedlings, the following is an introduction in detail
Previously shared the reasons and countermeasures for the yellowing of new rose seedlings, in fact, in early spring, in addition to the leaves easily turning yellow, there is another phenomenon that often occurs, which is the sudden withering of new seedlings. What is the cause of this?
Sudden Withering of Rose Seedlings
The phenomenon of withering rose seedlings not only occurs in early spring but is also very common in other seasons. However, most of them appear in newly transplanted seedlings or seedlings that have suffered significant trauma. Today we only analyze the common causes of withering new seedlings in early spring.
Early Spring Rose Seedlings Wither
If the rose, which has germinated well in the early spring stage, suddenly has some or all of the new seedlings withering, even accompanied by black stems, it is mostly caused by improper fertilization.
1 -- Whole Plant New Seedlings Wither --
In the early spring stage, the capillary roots of roses grow relatively few, and their absorption capacity is not very good. If quick-acting water-soluble fertilizers are applied too early, and the concentration of the fertilizer is too high, it can easily cause withering of new seedlings. The essence of this withering is actually severe fertilizer damage.
You might argue here: I apply the same amount of fertilizer every year, why do the other roses have no problems, and only a few have problems?
Here we have to talk about individual differences. Some seedlings are weak, some are strong, and their tolerance to fertilizers is different. For example, if a rose hasrotten roots in the previous autumn, after rescue and winter dormancy, it begins to germinate in spring. The new seedlings may look normal, but their actual root system may not have recovered much because the root growth is very slow or may not even grow at all due to the low temperature in winter. Therefore, in early spring, if the same amount of fertilizer is applied as other seedlings, it is easy to have new seedlings wither or even have black stems after fertilization.
Early Spring Rose Seedlings Wither
So the Green Enthusiast Network personally does not recommend applying water-soluble fertilizers to roses too early in the spring. This is also emphasized in the book "How to Grow a Burst of Roses from Scratch."
Because in winter, we apply long-acting fertilizers, and when roses just germinate in early spring, they basically do not lack fertilizers. It is safer to apply thin liquid fertilizers after the leaves are fully expanded, supplemented by foliar spray.
2 -- Some Branches New Seedlings Wither --
If some new rose seedlings wither during the spring germination period, it is mostly still a problem with fertilization. Especially for some large seedlings, fertilizer damage may not cause the entire plant's new seedlings to wither, but it can cause most of the new seedlings to turn yellow and lose their green color, accompanied by the withering of new seedlings on some branches.
And this corresponds to the severe damage to the root system that supports the withered new seedlings. These branches of new seedlings are usually relatively thin and weak, so the resistance of this part of the root system is also weaker.
3 -- Pest Damage --
Another important reason for the withering of some rose seedlings is pest damage. Especially when we find that some thick branches have withered new seedlings and are accompanied by yellowing branches, we need to pay attention, as there is often pest infestation.
The pests that damage roses mainly include three types:
① The larvae of the scarab beetle mainly bore into the main roots, causing the most significant damage.
② The larvae of the longicorn beetle mainly bore into thick main stems or thick branches.
③ The larvae of the stem borer, lurking in the branches, bore into the inside of the branches, causing the inside of the branches to be hollow.
And what we need to focus on is the first two types because if the larvae of the scarab beetle and the longicorn beetle are not discovered and dealt with in time, the damage to the roses will be fatal. It is recommended to carefully check the stability of the root system and whether the main stem has been bored.
When in doubt, it is recommended to cut off the withered branches first and then use pesticides, whether to kill or prevent them.
The above introduction of the sudden withering of rose seedlings and the withering of rose seedlings in early spring by the Green Enthusiast Network [www.lvzhimi.com] hopes to bring a little help to your life!