Category Archives: Insects and Pests

  • Sawfly, don’t bother me

    Dear Vineland Tree Care: What’s eating my pine ? Sawfly larvae were feeding on your bristle cone pine, which is a very cool tree choice by the way.  The larvae eat needles down to the fascicle, the sheath that hold the bundled needles together.  Later in the year, the winged sawfly lays eggs (and earns […]

  • Bird populations might benefit from the Emerald Ash Borer in our Trees

    I recently read the 2013 study, titled Effects of emerald ash borer EAB on four species of birds by Koenig, Liebhold, Bonter, Hochacka, and Dickinson from Cornell Lab of Ornithology with great interest.  In Michigan they found both red bellied woodpecker and white breasted nuthatch populations increased in areas of and EAB infestation from 2005 – […]

  • Woodpeckers and Emerald Ash Borer

                    At the Northern Green conference in January of 2017 Mark Abrahamson, Assistant Director of the  Minnesota Department of Agriculture, presented copious evidence of the direct correlation between woodpecker damage to ash trees and an Emerald Ash Borer (EAB) infestation. Woodpecker damage is described in two ways: Flecking, […]

  • Have you met the Emerald Ash Borer?

    In January of 2017 I attended the Northern Green, an annual green industry get together, and it’s Master Classes for tree geeks. The dangers of standing ash trees falling apart due to heavy infestations of emerald ash borer (EAB), was one of the main themes of the conference. The effect of EAB, an agrilus beetle […]

  • Emerald Ash Borer

    Emerald Ash Borer (EAB) is serious insect pest of our native ash trees in MN.  Although new to Minnesota in 2009, EAB has killed hundreds of millions ash trees in North America since 2002. (  The State of Minnesota has roughly a billion ash trees.  Treating ash trees with insecticides is an option to control […]

  • Treating Japanese Beetles

    We occasionally publish an answer to one of the many e-mails we regularly receive from tree owners looking for advice from a board certified arborist. This question arrived in our inbox in mid-August: Dear Vineland, My birch in the front yard is shedding its leaves. They are being eaten, but I can’t see any critters. […]