The European hornet, an introduced species, is the only true hornet in the United States. A large, orange colored insect, it is almost an inch long. These insects fly at night and are attracted to lights and lighted windows. They build nests in protected areas, such as wall voids, attics, tree holes and roof cavities. They have large stingers with large poison sacs, although they are not as aggressive as other wasps. They are an annual insect, all the workers die at the end of the year and the next year’s nest is started by a surviving queen. These insects can cause damage to ornamental shrubs by stripping the bark, girdling the twigs, to get the resulting sap. Control is directly to the nest entrance, at night.
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