Public health officials are urging use of bug repellent this season as cases of tick and mosquito-borne disease are on the rise.

The insects have been expanding their range across the U.S., including here in the Northeast, and a new report from the Centers for Disease Control and Prevention shows a significant increase in reported infections.

It’s been a matter of ‘when’, not ‘if’: For years state officials have been expecting the destructive emerald ash borer to turn up in Vermont. Tuesday, the state announced it has found an infestation of the insect in part of the town of Orange.

One of Connecticut’s most uncommon species of evergreen can still be found -- if you know where to look.

The emerald ash borer.
David Cappaert / Creative Commons

The destructive emerald ash borer is moving deeper into New England's tree population. An infestation was just found in Hampshire County in western Massachusetts.

Ragnhlld Brosvik / Creative Commons

A rise in tick-borne illnesses in Pittsfield has health officials concerned. reports the city has seen a rise in tick-borne illnesses including Lyme disease. So far this year, Pittsfield has had more cases of anaplasmosis and almost as many occurrences of Lyme disease- when compared to all of last year.