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Western spotted cucumber beetle
The western spotted cucumber beetle, Diabrotica undecimpunctata,
is commonly found feeding on ornamental plants. It is rarely in such large
numbers that it must be controlled. When large populations do appear they
can cause leaf damage and can be found feeding on terminals of shade trees,
potentially causing loss. We have reports of spotted cucumber beetle damage
on black locust, Caragana, hackberry, elm, tilia, Zelkova,
honeylocust, and laburnum. Damage has also been reported on dahlias, peonies,
and hibiscus, The following pictures are of cucumber beetle damage on
hibiscus.
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