MUNCIE, Ind. (WOWO): Some homeowners are raising concerns about electric utility Indiana Michigan Power's use of a chemical to hinder tree growth. 

Spokesman Tracy Warner says the company has treated hundreds of thousands of trees with growth regulator for more than 10 years. He tells The (Muncie) Star Press (http://tspne.ws/1Hj2zq3) more than 22,000 trees will be treated this year. Warner says using the chemical helps delay tree trimmings.

Muncie resident Sara Mong recently came home to find a company door hanger saying the growth regulator would be applied to her property. She was concerned it might contaminate the fruit of a tree. A contractor has since called to tell her it won't be used.

Warner says Indiana Michigan Power always notifies customers in advance and gives a phone number if they don't want it used.