What is the disease causing the leaves of roses to fall in summer?
Let's talk about the related topics of flower cultivation, such as why the leaves of roses fall in summer. Next, the editor will introduce this topic.
Roses may shed leaves in summer due to various reasons, but whatever the cause, there are always traces to follow. Here are six main reasons summarized for you.
1. Drought
When slow drought occurs in potted roses, they may choose to abandon some old leaves, which manifests as the yellowing and falling off of old leaves. In this case, it is necessary to water promptly and keep the potting soil slightly moist.
2. Red Spider Mites
Red spider mites can cause the leaves of rose flowers to turn yellow, characterized by many pinhead-sized spots in the yellow areas of the leaves and obvious granular matter on the back of the leaves.
3. (T-J) Disease
In hot and rainy summers, roses are prone to (T-J) disease, which mainly manifests as the yellowing of old leaves and accompanied by dried spots at the top or edges of the leaves.
4. Metabolic Yellow Leaves
At the transition from spring to summer, roses may experience metabolic yellowing of leaves, with a large number of leaves at the bottom and inside of the plant turning yellow and falling off. This is a natural phenomenon, and it is only necessary to remove the yellow leaves and clean them up.
5. Black Spot Disease
When there is a lot of rain in early summer, prolonged rain combined with humid and stuffy conditions can easily lead to roses being infected with black spot disease, causing the leaves to turn yellow and easily fall off.
6. Fertilizer Burn
In summer, high temperatures can cause fertilizer burn if liquid fertilizers are used improperly, leading to yellowing and burning of the tips of rose leaves.
The above information is for reference only. If roses show signs of leaf shedding, it is recommended to carefully inspect the plant, observe for pests or disease spots, and pay attention to adjusting the cultivation environment, such as light, water, and fertilizer.
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