Quick facts
Common name: Alder sucker
Scientific name: Psylla alni
Plants affected: Alders, Alnus species
Main symptoms: White fluffy waxy covering on stems and foliage
Most active: Spring
Scientific name: Psylla alni
Plants affected: Alders, Alnus species
Main symptoms: White fluffy waxy covering on stems and foliage
Most active: Spring
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