What should be done if the leaves of the rose are withered and have yellow spots?
Let me introduce the green plant flowers about what to do if the leaves of the rose are withered and have yellow spots, and share the detailed content next.
Continuous cloudy and rainy weather for a month has already made our roses look unsightly due to diseases and pests. Those who apply pesticides frequently can still protect their rose leaves relatively well. However, recently, with alternating rain and sun, new dangers have arisen for the roses.
This rose has developed many yellow spots on its leaves, and some leaves are withered. What do you think might be the cause?
Many friends might first think of fertilizer damage when seeing this symptom.
Indeed, if the concentration of foliar fertilizer is too high, it can cause such burns. However, in continuous rainy weather, for such fertilizer damage to occur, the concentration of the fertilizer must be very high. In that case, more leaves should have developed yellow spots, and more importantly, the owner of this rose pot has never fertilized!
So, what exactly is the cause?
Actually, it's sunburn!
The logic is simple. Think about it: we stay indoors all day, but if we go outside at noon for a walk, we feel the sun's intensity. Staying in the sun for 2-3 hours might result in peeling or skin burns by the evening or the next day.
What should be done if the leaves of the rose are withered and have yellow spots?
It's the same for roses! You might ask, aren't roses resistant to sunlight? How can they get sunburned? Yes, if we work outdoors continuously for a week, we also become less prone to sunburn.
Continuous cloudy and rainy weather means roses rarely get sunlight, so their leaves become very soft and tender. But now it's summer, and once the sun comes out, it's very intense. Roses can't adapt quickly enough and may get sunburned.
Another type of burn occurs when the weather alternates between rain and sun. When it rains and then the sun comes out, many rose leaves are still covered with dew. Sunlight then acts as a magnifying glass, focusing the light's heat, which can easily cause leaf burns.
Everyone needs to be extra careful recently because the weather has been alternating between sunny and rainy. If you have potted roses, it's best not to let them get rained on, which will be better.
If the roses are planted in the ground, you can only let nature take its course. If burns occur, there's no need to panic and look for causes everywhere. Calmly accept it and wait for the roses to grow and metabolize the damage on their own.
During this period, in addition to being prone to burns, roses can also develop drooping young branches, as shown in the picture below.