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Pseudomonas savastanoi nerii

Oleander knot

Description

The bacterium Pseudomonas savastanoi pv. nerii is a causal agent of parenchymatous galls on leaves of oleander plants. Yellow spots are often present. There can be some small round galls (knots, outgrowths) on upper side of leaves surface. P. savastanoi prefer warmer climates. It can be a serious pest in the production of potted oleander plants.

Symptom

Yellow patches, leaves deformations and small round galls (knots, outgrowths) on upper side of leaves surface.

Tree Species: Oleander

Part of a plant- attacked: Leaf / Needle

Pest significance: Very harmful

Pest Category: Bacteria and viruses

Invasive Species: No

Present in EU: Yes

Seasonal frequency of occurrence

Seasonal frequency of occurrence