What is the difference between black spot disease and sooty mold in succulents?
Are you curious about the content regarding the difference between black spot disease and sooty mold in succulents? Let's follow the editor to explore the details!
What is the difference between black spot disease and sooty mold in succulents?
Black spot disease and sooty mold are common diseases in succulents. What are the differences between these two conditions? Let's find out.
Differences between black spot disease and sooty mold in succulents
Black Spot Disease
When succulents develop black spot disease, black spots usually appear on the leaves, which are typically round. Then, the leaves may wither or turn into water, and they will easily fall off when touched. Eventually, the entire succulent may develop black spots and die. Black spot disease in succulents usually progresses slowly, so early detection and treatment are essential.
Sooty Mold
Sooty mold in succulents is different from black spot disease. Sooty mold appears as a layer of grayish-black spots on the entire leaf. It usually starts on the back of the leaves and the petioles, so it is not easily noticeable. Sooty mold is highly contagious, so when you find that a succulent has sooty mold, it is crucial to isolate and treat it promptly, otherwise, it may spread to other healthy succulents.
How to treat black spot disease and sooty mold in succulents
When succulents develop black spot disease or sooty mold, first, isolate the affected succulents, then cut off the affected leaves, and finally, apply fungicides for treatment. Common fungicides include carbendazim, chlorothalonil, mancozeb, and thiophanate-methyl. However, it is important not to alternate between carbendazim and thiophanate-methyl.
Editor's suggestion
Sooty mold and black spot disease in succulents often occur due to improper watering, poor ventilation, and a hot and stuffy environment. Therefore, when caring for succulents, it is important to water them appropriately, maintain good ventilation, and take measures to cool them down during high summer temperatures. If you notice any symptoms in succulents, isolate and treat them promptly with fungicides.
The above shares the complete introduction to the differences between black spot disease and sooty mold in succulents, hoping it can be helpful to you. Don't forget to check out more flower care experience and knowledge!