Chinese roses have been infected with red spiders and cannot be cured.
Here is an introduction to the topic of Chinese roses infected with red spiders that cannot be cured, in the field of green plants and flowers. Let's delve into it together next.
This year, the weather has been continuously cloudy and rainy, causing worry for those who grow Chinese roses on their balconies. Due to poor ventilation on the balcony, the red spider infestation has爆发ed prematurely. Just yesterday, one flower enthusiast bought all the remedies for red spiders in my store...
So, what should be done when Chinese roses are infected with red spiders? How can the occurrence of red spider infestations in Chinese roses be prevented? First, let's briefly introduce the characteristics of red spiders. To treat red spider infestations in Chinese roses, we first need to be able to distinguish whether the roses are infected.
Symptoms of red spider infestations in Chinese roses:
Red spiders are very small in size and are often not detected in the early stages of infection in Chinese roses, requiring careful observation. Red spider infestations in Chinese roses usually start from the bottom, near the potting soil, on old leaves, and gradually spread upwards.
In the beginning, red spiders gather on the back of old leaves. When the leaves are flipped, very small black and red dots can be seen. The red dots are the red spiders, and the black dots are usually the bodies or excrement of dead red spiders.
Chinese roses infected with red spiders cannot be cured.
Red spiders reproduce very quickly. If not detected and managed in time, they will soon infect the upper part of the Chinese rose plant. At this point, many tiny pinhole-sized dots can be seen on the back of the leaves, which are left by red spiders feeding on the leaf juice.
Spider webs can also be seen on Chinese rose plants. At this time, a large number of red and black dots will appear on the back of the leaves. If no treatment is administered, the Chinese roses are in danger.
The treatment for red spider infestations in Chinese roses can be divided into two methods: chemical treatment and physical treatment.
Chemical treatment for red spider infestations in Chinese roses:
After Chinese roses are infected with red spiders, chemical treatment requires continuous application of medication. It is also best to avoid using the same medication consistently to prevent resistance.
Red spiders belong to the mite family and are different from ordinary pests. Therefore, miticide insecticides need to be used, as other insecticides have little effect on red spiders.