Lifelong arborist Tom Kent for months has suspected that an herbicide was sprayed on a douglas fir stump in Inverness Park. The faded grey-and-red circle ringing the stump was not a natural feature, he surmised, but instead the dye from an herbicide spray likely applied by a tree-service company.
His suspicion turned out to be correct.
According to records filed with the county, Davey Tree Company, which contracts with Pacific Gas & Electric to rid…