This article is the second in a series by the author designed to help arborists diagnose problems caused by insects and mites on woody landscape plants. The first article, “Basics for Diagnosing Problems Caused by Insects and Mites” (TCI November [...]

Photo 1: This will be a common scene in 2021, when hundreds of thousands of cicadas will emerge beneath trees in more than a dozen eastern states. Unless otherwise noted, all photos courtesy of the author. Natural events often occur [...]

Emerald Ash Borer photo by Marianne Prue, Ohio Department of Natural Resources - Division of Forestry, Bugwood.org The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) is changing its approach to fighting the emerald ash borer (EAB) [...]

Click below to listen to “Spotted Lanternfly: Get Ahead of It Now!” presented by Lucas Markley, Jon Schach and Julie Urban at TCI EXPO 2019 in Pittsburgh, Pennsylvania. The spotted lanternfly, Lycorma delicatula, is one of the most voracious invasive [...]

The author applies systemic insecticide to kill ailanthus trees. All photos courtesy of the author. In a year overshadowed by a pandemic, I wasn’t sure how the tree care industry was going to fare. I was preparing to start my [...]