Plantas decorativas de jardín y/o interior
How to recognize and combat sooty mold on decorative garden and/or indoor plants
Sooty Or Bold
Fungus
Type:
Risk to the plant:
INTERMEDIATE
Fungal Complex
Pathogen:
Fumagina o negrilla
WHO CAUSES IT?
Sooty mold or sooty mold is caused by a complex of fungi, mainly species of the genus Capnodium, Cladosporium and Scorias. These fungi develop on the surface of the leaves and branches of plants, feeding on the honeydew secreted by insects such as aphids, scale insects and whiteflies. The spores of these fungi are carried by the wind and deposit on the surfaces of plants where honeydew is present. Under favorable humidity and temperature conditions, the spores germinate and form a network of dark mycelium on the molasses, creating a characteristic black layer. This mycelium can grow and spread, covering much of the affected plant. As the fungi develop, they can produce new spores that are dispersed again, perpetuating the infestation.
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SYMPTOMS
Sooty mold affects plants by covering their surfaces with a black layer of fungus, which interferes with photosynthesis and plant respiration. This can lead to a reduction in plant growth and vigor, and in severe cases, the death of affected parts.
- Leaves covered by a black or grayish layer.
- Reduction of photosynthetic capacity.
- Yellowing and premature leaf fall.
- Reduced growth and general weakness of the plant.
- Difficulty in transpiration and leaf respiration.
- Presence of honeydew-producing insects such as aphids and mealybugs.
- Affectation of the aesthetic appearance of the plant.
DEVELOPMENT CONDITIONS
Temperature:
20°C a 30°C
Humidity:
60% a 90%
HOW IS IT SPREAD?
Wind, Direct contact between plants, Honeydew-producing insects, Contaminated tools, Contaminated irrigation water
HOW TO ELIMINATE IT?
Home treatments
There are no home treatments
Natural allies
Chemical treatments
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
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