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Psylla alni

Psyllid Psylla alni

Description

Psylla alni is an insect that is about 5-6 mm long. The images are initially green, later becoming orange, brown or reddish. Nymphs are usually covered with white cotton like wax.

Symptom

White cotton like wax on branches.

Tree Species: Alder

Part of a plant- attacked: Leaf / Needle

Pest significance: Harmful

Pest Category: Insects

Invasive Species: No

Present in EU: Yes

Seasonal frequency of occurrence

Seasonal frequency of occurrence