Protect Plants From Cicadas

While Illinois’ dual emergence of periodical cicada broods is harmless to people and animals, young trees may sustain serious damage if not protected by mid-June, experts at The Morton Arboretum said.

This is the first co-emergence of these two broods since 1803, researcher Katie Dana from the Illinois Natural History Survey told Capitol News Illinois, making it a truly once-in-a-lifetime event. Although each brood will appear in 2037 and 2041, respectively, the 221-year-long cycle means the next time both broods emerge at the same time will happen in 2245.

“I've heard reports of billions, I'v...