Chicago, the largest city in Illinois and third most populous city in the nation, is a bustling hub of business, finance and culture. With the state a leading producer of corn and soybeans, it’s important to keep destructive insects at a distance. Chicago exterminators have their hands full with such phenomena as the cicada, a noisy and pesky insect that leaves scars and holes in trees. Every 13 or 17 years, depending on the brood, the cicadas emerge from under the ground in the thousands and wreak havoc on the residents and young trees. But if the pest control services in Chicago and across Illinois don’t reach your yard in time, you can always do what people in some parts of the world do – eat them.