Diagnosis Complete
Anthracnose (Colletotrichum Leaf Spot)
Analyzed September 6, 2026
Primary Diagnosis
Anthracnose (Colletotrichum Leaf Spot)
Diagnostic note
The leaf shows severe chlorosis paired with a large dark necrotic patch and localized necrotic lesions. This presentation is strongly indicative of Anthracnose fungal infection on an Araceae species (e.g., Anthurium or Philodendron). Bacterial blight is a secondary consideration due to the yellow halo and necrotic damage.
What the AI detected
- Widespread bright yellow interveinal chlorosis
- Large dark brown to black necrotic lesion on leaf blade
- Irregular brown necrotic spotting along leaf surface
- Chlorotic halo surrounding primary necrotic area
Alternative possibilities
Treatment plan
- 1Prune and dispose of the severely affected yellow leaf using sterilized shears.
- 2Avoid overhead watering to prevent water from sitting on leaf surfaces.
- 3Improve air circulation around the plant and ensure proper pot drainage.
Treatment guidance informed by published plant pathology research.
Photo tips for better accuracy
Diffuse natural light
Shade or overcast is best — direct sun creates glare that hides lesion detail.
Frame the affected area
Fill the frame with the sick leaf. More detail = more accurate result.
Plain background
White or neutral surface behind the leaf reduces visual noise.
Multiple angles
If symptoms are subtle, try 2–3 shots from slightly different angles.