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emerald ash borer adult

emerald ash borer adult

The invasive emerald ash borer (Agrilus planipennis) is a small but destructive pest in much of the eastern half of the United States. A key part of management efforts have focused on biological control via parasitoid wasp species. But an extreme cold-weather period in the U.S. in the winter of 2019 showed researchers that extreme fluctuations in temperature driven by climate change could complicate the success of such biological control efforts, as significant numbers of the parasitoids did not survive the extreme cold. (Photo by Howard Russell, Michigan State University, Bugwood.org)

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