How to treat multiflora disease caused by soot mold
Compared with the introductions of multiflora plants in most people's flower clinics, how to treat multiflora disease caused by soot mold is what will be introduced comprehensively next.
Many flower friends don't know how to treat multiflora disease caused by soot mold, watching their multiflora plants infected by soot mold, they feel very anxious. This article is about a flower friend's experience and tips for preventing and treating soot mold, which is very useful for new flower friends.
I won't elaborate on what multiflora disease caused by soot mold is, it's all online, those interested can search. Let's talk about the causes, all from the internet: “In addition to the humid and sultry soil and water infections in summer, more come from various虫体 carrying infections. Aphids, scale insects, and ants not only eat and absorb the sap from the leaves and roots of plants but also secrete honeydew and excrete feces. These secretions contain various fungi, and after being bitten by these pests, the infection can worsen.” So, when you find scale insects, you must pay attention. When I encounter scale insects, I pick them out with a toothpick and kill them. Recently, scale insects have occurred occasionally but not frequently. I saw online a few days ago that 75% alcohol can kill scale insects, but I haven't verified it yet. Because the insects are too small, after I pick them out with a toothpick and drop a little alcohol, I don't know if they die or not, but they probably don't feel good. However, alcohol can kill bacteria, and I tried 75% alcohol yesterday. Anyway, after spraying alcohol, it doesn't affect the multiflora plants, so everyone can try using alcohol to disinfect after being infected with scale insects to avoid fungal infections.
Many friends don't notice soot mold at first because this disease often doesn't start from the center of the leaf, so it's hard to detect. The parts that are more likely to get sick are the old leaves, especially the back of the petiole (the part of the leaf close to the stem), with patches of gray-black mold spots. Look closely, and there are depressions at the spots, then it spreads from old leaves to new leaves until the whole plant turns black. Here are a few pictures of the symptoms:
The following picture shows a diseased leaf
I found an online picture, and the symptoms are very typical. The condition of this plant is quite severe
Here's a less severe leaf. Refer to this and carefully check your multiflora plants at home
About treating soot mold, the first step is to isolate the diseased plant. Then, apply medicine to the diseased plant. I mainly use a solution of carbendazim and streptomycin for spraying, especially on the back of the leaves, which must be evenly sprayed and then watered at the roots. Both carbendazim and streptomycin are systemic and can be absorbed by the plant. In the first week, you can spray every three days, and then once a week for the following weeks, continuing for three to four weeks. I changed the medicine one or two times, switching to carbendazim + polyoxin B (diluted at a ratio of 1:2000). For some severely infected plants, in addition to spraying, I also apply carbendazim powder to the entire leaf. During the treatment of soot mold, I see the mold spots every day, and due to the spraying and application of medicine, the plants look completely different, and I don't know if they are cured. I have to wait for a while to see if the disease doesn't spread before knowing it's cured. This process is very torturous, and every day I see these things, I don't want to, and I even think about (S) it.
Carbendazim, the Guoguang brand, is a good product. I often use it at will, and it doesn't burn the seedlings, but it can develop resistance after long-term use.
Flower friends need to pay attention to the concentration control. Because I didn't master the concentration, I poured it randomly (everyone, please don't do this), and then the seedlings were burned. However, although they were burned, the entire leaf center turned black, but new leaves grew normally, which was fortunate. The orange circle indicates the soot mold lesions, which have been treated and no longer spread, and the blue circle indicates the burned seedlings.
The above shares the complete introduction on how to treat multiflora disease caused by soot mold for everyone to learn and understand!