Dr. Phyto

mint leaf beetle

Chrysolina herbacea

mint leaf beetle — Chrysolina herbacea
mint leaf beetle · Tomasz Górny (Nemo5576) (CC BY-SA 3.0)

Symptoms

Notches and irregular holes in mint leaves, shiny metallic green-blue beetles (8-10 mm) on plants in summer, dark grey larvae on leaves, severe defoliation possible.

Treatment

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