Today I completed your one time service for bald face hornets and cicada killers. I inspected all the areas of concern and found a bald face hornet nest by the tree. I used aerosol application to help eliminate the activity and knock down the nest. I also, applied a liquid residual product to the cicada killers nest all by the front lawn. Please avoid the treated areas for the remainder of the day and we highly recommend watering the grass to help prevent the cicada killers. Allow 10-14 days to see best results. Give us a call if any questions or concerns should arise. Thank you for choosing green pest solutions!!!