Madison prepares for ‘inevitable’ emerald ash borer invasion

Phil Pellitteri, a UW-Extension insect specialist, said he has been surprised at how quickly the ash borer has seemed to spread just this summer. In recent weeks, it has shown up for the first time in the city of Janesville as well as in Milwaukee. “It?s just kind of popped,” said Pellitteri of the insect?s recent spread. “That?s what it has felt like . . . So would it surprise me if it comes here this year? No, it would not.”