Status
In 1996 it was discovered in a park in New York, where native plantings of arrowwood were found to be heavily damaged by larval feeding. The UK-based Royal Horticultural Society stated that its members reported ''Pyrrhalta viburni'' as the "number one pest species" in 2010.Behavior
Viburnum leaf beetles go through one new generation of offspring per year. Eggs are laid in the winter and they hatch in mid-May. After they hatch, the larva feed and grow successively bigger through different molting stages. Ultimately, they pupate in the soil and emerge as adults in late June or early July.Females tend to lay eggs at the end of twigs and leaves. After chewing a hole in the step, the female will lay 5-6 eggs along the underside of the twig.
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