 Rickertree Service's top priorities are safety and trust. It's why Rickert's ISA-certified arborist gives you a certificate of workers' comp and liability insurance with every estimate. Before limbs fall, give Rickert a call at 272-6111 and at FixMyTree.com. From the MullenPlumbing.com Traffic Center, I'm Steve Knoll, 1023 KRMG, Tulsa's News and Talk.