Fumagina o negrilla
Sooty mold or black mold: what it is, how it originates, and how to remove it effectively
Bold Or Sooty Mold
Fungal Complex
Pathogen:
Fungus
Type:
Risk to the plant:
MILD
DESCRIPTION
WHO CAUSES IT?
Sooty mold is a fungus that develops on honeydew secreted by sap-sucking insects such as aphids, whiteflies and mealybugs. This fungus is superficial and does not directly infect plant tissues, but creates a black coating on the leaves, shoots and fruits that interferes with photosynthesis and normal plant development.
SYMPTOMS
In citrus fruits, sooty mold can cover the leaves, branches and fruits with a black layer, which prevents the entry of light and makes photosynthesis difficult. This results in a general weakening of the plant, reduction in the production and quality of the fruits, and a deteriorated appearance of the crop.
• Black fungal layer on leaves, branches and fruits.
• Reduction of photosynthesis.
• General weakening of the plant.
• Decrease in fruit production and quality.
• Dirty or blackened appearance of the plant.
TEMPERATURE AND HUMIDITY
15°C - 30°C
60% - 80%
HOW IS IT SPREAD?
Honeydew produced by sap-sucking insects.
HOW TO REMOVE IT?
Home remedies
There are no home treatments
Chemical treatments
• COPPER OXYCHLORIDE 37.5% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 38% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 70% (EXPR. IN CU) [SC] P/V
Treatments allowed in organic farming
• COPPER OXYCHLORIDE 37.5% (EXPR. IN CU) [WG] P/P
• COPPER OXYCHLORIDE 38% (EXPR. IN CU) [SC] P/V
• COPPER OXYCHLORIDE 70% (EXPR. IN CU) [SC] P/V
Insect allies
PREDATORY MITES
LADYBUGS
LACEWINGS
PARASITIC WASPS
HOVERFLIES OR PARASITIC FLIES
PREDATORY BUGS
There are no natural allies
Mycodiplosis oidii (predatory mosquito)
EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE
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• Control populations of sucking insects that produce honeydew.
• Clean plants with water to remove honeydew and fungus.
• Maintain a clean environment around plants to reduce spread.
• Prune and remove severely affected branches and leaves.
• Use of specific fungicides when necessary.
Recommendations
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