Learn more about some of the potential problems invasive tree species can cause throughout Chicagoland, IL Early summer is a great time of year in the Chicago area.  The trees are getting greener, and the weather is getting warmer as people throughout Chicagoland flock outside to enjoy the nice weather. There are many ways to enjoy the summer in the Chicago area.  One thing people like to do in the summer is spend time in nature and enjoy the...