What is the deal with the rust-like substance growing on the leaves of the rose?
A comprehensive analysis of the rust-like substance growing on the leaves of the rose is provided in the explanation of green plants and flowers. Next, the editor will introduce it.
Yesterday, I shared some symptoms and treatment methods about leaf miners, and then some flower friends left a message saying that the symptoms of roses introduced in yesterday's article might also be symptoms of rust disease. Let's take another look.
First of all, I am very grateful to this flower friend for leaving a message to point it out, which shows that you are very serious and eager to learn, and we should also learn from you and strive to make continuous progress.
In fact, many diseases and insect pests are very similar at the beginning, and it can be really difficult to distinguish sometimes, especially for some新手 flower friends, it is even more confusing. So, let's take a look at what rust disease is.
What is rust disease?
Rust disease is a type of plant disease caused by the parasitization of rust fungi. It is mainly characterized by the formation of small blisters or raised, hair-like or cup-like structures of different colors on the plant leaves, and some can cause tumors on the branches and trunks.
The picture above shows the rust disease caused by the hair-like rust fungi, a bit disgusting...
Manifestation of Rust Disease on Roses: Roses are relatively less likely to contract rust disease, while begonia flowers and pear trees are particularly susceptible to rust disease. If there is someone planting pear trees or begonias nearby, you need to pay attention to prevent rust disease.
Most of the time, hair-like rust disease is relatively rare, and it is mostly caused by rust-like fungi that cause rust spots, which are manifested as many rust-like spots on the leaves.
Sometimes, the lesions of rust disease may be lighter in color and appear reddish like rust, and sometimes the color may be darker, appearing dark red.
If infected with white rust fungi, it will also show white fungal spots, known as white rust disease.
Moreover, rust disease is a parasitic fungus that寄生s on the surface of leaves and often many leaves are affected simultaneously. When roses have rust disease, you can use rust inhibitors like Xinkening and Mancozeb to spray and treat.
Sometimes, at the early stage of the occurrence of diseases and insect pests, the symptoms are difficult to distinguish. At this time, we can use combined administration when applying medication, and carry out prevention and treatment simultaneously.
For example, in yesterday's article, the rose mentioned seemed to have both leaf miners and rust disease. At this time, when we apply medication, we can use both the medicine for treating rust disease and the medicine for treating leaf miners. Regardless of the situation, it can achieve relatively effective control and prevent the symptoms from further developing or even spreading to other potted plants.
The detailed introduction of the rust-like substance growing on the leaves of the rose mentioned above, have you understood it now?