The Eurasian viburnum leaf beetle, Pyrrhalta viburni (Paykull, 1799), can injure and sometimes kill wild and cultivated Viburnum spp. in North America. A survey conducted in Connecticut in 2009–2010 showed that this invasive beetle was established mainly in northern Connecticut. A second two-year survey was initiated in 2016 because P. viburni was appearing south of its previous known range. The second survey revealed that P. viburni had spread throughout the state, being present at 247 of 248 (99.6%) sites sampled. Thus, susceptible species of viburnum are now at risk of injury throughout Connecticut.
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11 February 2019
Range Expansion of the Viburnum Leaf Beetle, Pyrrhalta viburni (Paykull, 1799) (Coleoptera: Chrysomelidae), in Connecticut
Chris T. Maier
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distribution
invasive beetle
sampling
Viburnum dentatum
Viburnum opulus