Cercospora Leaf Spot and Berry Blotch
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This disease, also called Iron Spot, is caused by the fungal pathogen, Cercospora coffeicola and tends to present itself on coffee plants grown in areas of higher moisture and rainfall and on plants that are stressed.
Common symptoms of this disease are "brown eye-spots" with a slight yellow halo on the leaves and brown, sunken, oval-ish blotches with a slight purplish halo on the cherry. These blotches can resemble sunburn. Young fruit tend to ripen prematurely. Ripe fruit affected by this disease may be further attacked by fungi such as Colletotrichum spp., that mummify fruit and cause cherry to be unmarketable. Copper-based fungicides and others labeled for coffee can be applied to manage Cercospora problems. |
Follow all label directions when using fungicides and all other pesticides.
More information on this disease can be found here.
More information on this disease can be found here.
Collecting Plant Disease and Insect Pest Samples for Problem Diagnosis
Learn how to best collect and submit disease, insect pest and nematode samples to the UH Agricultural Diagnostic Service Center (ADSC) for diagnosis. Click here for ADSC analytical service fees.
Learn how to best collect and submit disease, insect pest and nematode samples to the UH Agricultural Diagnostic Service Center (ADSC) for diagnosis. Click here for ADSC analytical service fees.
Coffee Leaf and Soil Sampling
Learn how to correctly sample and submit coffee leaf and soil samples for proper analysis of plant nutritional status and soil pH and nutrient status.
Learn how to correctly sample and submit coffee leaf and soil samples for proper analysis of plant nutritional status and soil pH and nutrient status.
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