Elm Leaf Beetle
A major pest of elm trees, and primarily a nuisance pest because they enter structures in the autumn to overwinter.
- Common Name: Elm Leaf Beetle
- Scentific Name: Pyrrhalta luteola (Muller)
- Class/Order/Family: Insecta/Coleoptera/Chrysomelidae
- Metamorphosis: Complete
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Size
Adults about 3/16 to 1/4" long.
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Color
Light yellow with a black stripe, then dulls to olive green.
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Biology
Lays clusters of bright yellow eggs on the underside of elm leaves.
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Habit
Fecal material can spot car finishes on hot days.
Milwaukee, Waukesha, Ozaukee, and Washington Counties