Pest and Disease Control Methods and Technical Key Points for Rosa acicularis

Diseases

The first disease is called "black spot disease." This disease is relatively familiar to us, and many types of plants suffer from it. It mainly harms the leaf parts of this plant. When the disease first appears, some small brown spots appear on the surface of the leaves. As the condition gradually worsens, these small spots slowly connect into larger round spots, and their color gradually deepens. To control this disease, we first need to promptly sweep up fallen leaves and cut off the diseased parts. Second, we can spray some chemical agents, such as Bordeaux mixture. Of course, strengthening management is also very important, for example, it is best to use drip irrigation for watering.

The second disease is called "rust disease," and it is also fairly common. It can have a major impact on both leaves and branch parts, and in severe cases it can even cause most of the leaves to fall off, leading to death. For this disease, supervision should be strengthened, and measures should be taken as promptly as possible by spraying the corresponding chemical solution once every week, for three to four consecutive sprays, and this disease can be well suppressed.

Pests

The first is the "scarab beetle." It harms the leaves, flowers, roots, and other parts of this plant, especially affecting the quality of flowering. To deal with it, we can use light trapping to kill it. If the infestation is very severe, then insecticide must be sprayed.

The second is the "slug moth." They eat leaves, causing damage to the leaf blades. For this pest, we first need to carefully check the branches for eggs, and if there are any, cut them off promptly and spray chemical solutions such as fuling emulsifiable concentrate.