The Snohomish County environmental group that asked the Department of Natural Resources and various timber companies to rethink aerial spraying in the Sky Valley has received a response. The Seattle-based Weyerhaeuser timber company — one of the world’s largest lumber producers — sent a letter to the Sky Valley Environmental and Economic Alliance in October. SVENA had addressed its petition to Weyerhaeuser president and CEO Doyle Simons. North Washington Region manager Travis Ridgway replied. “Herbicides are an important tool in our ability to practice sustainable forestry and we will continue to use them, as appropriate, in a safe and efficient manner,” he wrote. …“The Weyerhaeuser response to the petition against aerial spraying is pretty much the same corporate rhetoric I’ve been hearing from them for 35 years,” wrote resident and SVENA member Diane Hardee in an email.