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Why Does Arabian coffee Get Spotty Leaves?
Arabian coffee, also known as Coffee Plant , Coffee, Coffee shrub of arabia
Spots on Arabian coffee are a disease causing discoloration, reduced photosynthesis, and potential defoliation, leading to diminished yield and bean quality.

Symptom Analysis

Spots appear as brown or black lesions on leaves and berries. Leaves may yellow, wither, and fall, while affected berries may drop prematurely or produce inferior beans.
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What Causes Spots Disease on Arabian coffee?

Fungal organisms
Different fungi like Colletotrichum spp. can cause Anthracnose, leading to spots, especially in humid conditions.
Bacterial pathogens
Bacteria like Pseudomonas syringae can result in bacterial blight, characterized by water-soaked spots.
Environmental stress
Excessive moisture, poor air circulation, and nutrient deficiencies can predispose Arabian coffee to spot diseases.
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How to Treat Spots Disease on Arabian coffee?

Non pesticide
Cultural practices: Implement crop rotation, proper spacing, and pruning to improve air circulation and reduce moisture.

Sanitation: Remove and destroy infected plant debris to minimize inoculum sources.
Pesticide
Fungicides: Apply appropriate systemic fungicides to manage fungal causes of spots.

Bactericides: Utilize copper-based bactericides to combat bacterial spot diseases.

How to Prevent Spots on Arabian coffee?

Plant resistant varieties
Select resistant cultivars of Arabian coffee to reduce susceptibility to spots.
Proper fertilization
Apply balanced nutrients to strengthen Arabian coffee against infections.
Irrigation management
Water plants at the base to avoid wetting leaves and berries, decreasing pathogen transmission.
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When is Spots Most Active Period on Arabian coffee?

Spots are most active during prolonged wet seasons, as high humidity and moisture favor pathogen growth and spread.

Infectivity

Spots can rapidly spread through splashing rain and contaminated tools or hands.

Lethality

If unmanaged, spots can significantly reduce the plant's vigor and crop yield.

FAQs on Arabian Coffee

Can spots on Arabian coffee be completely cured?
Control is possible, but complete eradication is difficult once the disease has established itself.
How do I identify spots on Arabian coffee?
Look for brown or black lesions on leaves and berries, premature berry drop, and reduced foliage.
Are chemical controls necessary for spots on Arabian coffee?
Chemical controls can be part of an integrated management strategy, but cultural practices and sanitation are critical.
What environmental conditions favor the development of spots on Arabian coffee?
Warm, wet, and humid conditions favor the development and spread of the disease.
Can spots spread to other plants?
Spots can spread, especially under favorable conditions, so it is important to manage the disease promptly.
Should I remove infected parts of Arabian coffee?
Yes, removing and destroying infected plant parts helps reduce the spread and severity of the disease.
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