Plant photo

Diagnosis Complete

Bacterial Blight (Xanthomonas axonopodis pv. dieffenbachiae)

Analyzed September 4, 2026

Primary Diagnosis

Bacterial Blight (Xanthomonas axonopodis pv. dieffenbachiae)

moderate
Confidence75%

Diagnostic note

The leaf shows classic symptoms seen in Anthurium bacterial blight, featuring an expanding necrotic lesion surrounded by a bright chlorotic (yellow) zone. Early fungal leaf spots (Anthracnose) and root damage from overwatering can produce similar secondary foliar necrosis and require careful monitoring of watering habits.

What the AI detected

  • Severe yellow chlorosis across leaf surface
  • Large dark brown to black necrotic central lesion
  • Water-soaked brownish speckling near lesion borders
  • Interveinal yellowing pattern progressing from margin/center

Alternative possibilities

#1Bacterial Blight (Xanthomonas axonopodis pv. dieffenbachiae)
75%
#2Anthracnose (Colletotrichum gloeosporioides)
60%
#3Root Rot / Overwatering Damage (Pythium / Phytophthora)
45%

Treatment plan

  1. 1Isolate the plant immediately to prevent spray-transmission to healthy plants
  2. 2Prune and dispose of affected leaf using sterilized cutting tools
  3. 3Eliminate overhead watering and keep leaves dry
  4. 4Increase ambient air circulation around the foliage

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.