Common Reasons and Treatment Methods for Withering of Early Spring Rose Seedlings
The editor answers your questions about the common causes and treatment methods for withering of early spring rose seedlings, and the following is an introduction for netizens.
As the temperature rises these days, the new rose seedlings grow rapidly. Seeing the red new rose seedlings is like seeing the full bloom in April and May. If you find that the new rose seedlings are withering at this time, it is worrying. In early spring, rose lovers often encounter the phenomenon of withering new rose seedlings, which seems mysterious. They feel that they haven't done anything wrong, yet the seedlings wither. How to prevent it?
Common Reasons and Treatment Methods for Withering of Early Spring Rose Seedlings
The withering of new rose seedlings in early spring can be summarized into the following three common reasons for your reference and prevention.
1. Accumulation of Water and Root Rot
In the picture above, you can see that the new rose seedlings have withered due to water loss, but the potting soil is very moist, and there is also a hardening situation on the surface of the potting soil. Carefully observing the rose branches, you will find that the epidermis is wrinkled, which is a serious sign of water shortage. However, the potting soil is very moist and should not be short of water. The reason for the water shortage symptoms is that the roots are damaged and cannot absorb water, showing water shortage symptoms. This situation can be basically judged as root rot caused by waterlogging in the potting soil.
For managing potted roses simply, the potting soil should have good breathability and water permeability. If the potting soil is fine and has good water retention but poor breathability, it is easy to cause waterlogging. It is recommended to use loose and breathable formula soil with more particles, and water the plants only when the soil is completely dry.
2. Early Spring Disease
In early spring, the temperature difference between day and night is significant. If the watering is excessive or the plant is rained on, the humidity will be too high, and the roses are prone to diseases. By the time it is noticed, the new seedlings often show signs of withering.
If individual seedlings are withering, they should be cut off promptly and treated with fungicides. Diseases are fungal diseases, and fungicides such as pyraclostrobin and fluoro硅azole can be used for treatment. Diseases should be treated promptly; otherwise, the roses can easily wither entirely.
Rose seedlings with weak roots and thin branches are most susceptible to diseases. For overly thin branches, they should be thoroughly cut off in winter. Additionally, roses that have sap flowing from pruning wounds in winter are also more prone to diseases. Therefore, it is recommended that you spray fungicides for prevention in early spring.
Common Reasons and Treatment Methods for Withering of Early Spring Rose Seedlings
3. Fertilizer Damage
Fertilizer damage to early spring rose seedlings is not uncommon, but it is often overlooked by rose lovers, who always think they haven't done anything wrong and that the seedlings have withered on their own. For example, yesterday, a rose lover consulted Green Plant Enthusiast Network and asked why the new rose seedlings withered.
At first, he sent me two pictures of withered seedlings, and it was only a few seedlings that withered. It looked like fertilizer or pesticide damage, but the rose lover said that he only applied fermented sheep manure and bone meal in February and sprayed lime sulfur. He thought that fermented sheep manure and bone meal should not cause fertilizer damage, at least not now, and the effect of lime sulfur has passed. So, what is the reason?
Until the rose lover sent the following photo, I confirmed it was fertilizer damage!
The above picture clearly shows burnt tips, dry edges of leaves, and malformed new leaves. Combined with the fact that the rose lover has not sprayed any pesticides recently, it must be fertilizer damage. However, fermented sheep manure and bone meal generally do not cause fertilizer damage. So, I continued to ask if he had applied any other fertilizers besides sheep manure and bone meal.
Then the rose lover said: "I also added a handful of Ogreen slow-release fertilizer, and the pot is a 1-gallon pot."
At this point, the real reason has been found. It turned out that most of this rose lover's roses were grown in the ground, and he was used to sprinkling fertilizers at will. He sprinkled a handful of Ogreen on a 1-gallon pot, and with the rapid rise in temperature recently, the release of slow-release fertilizer accelerated, leading to fertilizer damage to the roses.
So, rose lovers, when using chemical fertilizers, be sure to follow the instructions for dosage. Excessive use can easily burn the seedlings. For the fertilizer damage caused by long-acting fertilizers like slow-release fertilizers, the solution is to dig out the fertilizer and then water the roots with clean water. If the slow-release fertilizer is mixed with soil, then the soil must be changed, or the burning of the seedlings will become more serious with the continuous release of fertilizer.
When fertilizing potted roses, you need to be extra careful. When fertilizing ground-grown roses in early spring, you also need to pay attention to some details, otherwise it may also lead to withering of the new rose seedlings.
For example, when applying compound fertilizers or slow-release fertilizers, you should spread them evenly and over a larger area. If the fertilizers are piled up, the local fertilizer concentration will be too high, and if there are roots under the fertilizer, it will lead to fertilizer damage to the local branches, showing symptoms such as black stems and withered new seedlings.
For example, when we apply compound fertilizers, if the fertilizer falls on the new seedlings, the fertilizer should be removed, otherwise it can easily cause local fertilizer damage and lead to withered seedlings. Finally, remember to water the plants after spreading fertilizers on sunny days.
The above is [www.lvzhimi.com] about the common reasons and treatment methods for withering of early spring rose seedlings and the comprehensive knowledge explanation of the three major reasons for withering of early spring rose seedlings that beginners are prone to misunderstand, hoping to help you.