Spruce aphid (Elatobium abietinum) is a non-native insect that was likely introduced from Europe and became established on the west coast sometime in the early 1900s. These tiny, yellow-green aphids are less than 1/16 inch long and feed on sap in conifer needles, primarily those of Sitka spruce and other ornamental species of spruce. Typical … Continue reading Spruce Aphid Damage in Coastal Washington Forests, Communities
This article has been reprinted as it originally appeared in DNR's "Ear to the Ground" blog on June 6th, 2019: https://washingtondnr.wordpress.com/2019/06/06/is-my-tree-dying-how-climate-change-and-drought-are-changing-the-landscape/ The problem first gained attention in bigleaf maple trees, which have been dying off since 2011 in some parts of Washington and Oregon. The Washington State Department of Natural Resources (DNR), the University of … Continue reading How Climate Change and Drought are Changing the Landscape
The Washington State Department of Natural Resources and USDA Forest Service conduct annual aerial surveys to identify, map and monitor the impacts of insect and diseases on forest lands throughout the state. Aerial survey data are verified with ground-based observations and are compared against the results of other forest health research happening throughout the state. Survey results are compiled … Continue reading New 2018 Forest Health Highlights Report
Article by Marianne Elliot and Michael Yadrick The Arbutus ARME is a new organization of botanical and community-powered people focused on expanding research, conservation, restoration and educational efforts related to Pacific madrone trees. The ARME in Arbutus ARME is a shorthand abbreviation of the Pacific madrone’s Latin name: Arbutus menziesii. Pacific madrone, also known as … Continue reading Join the Arbutus ARME!
This article was adapted from how it originally appeared on October 10, 2018, in DNR's blog, Ear to the Ground with DNR & Commissioner Franz Commissioner of Public Lands Hilary Franz has unveiled the largest budget request of its kind in state history: a $55 million Department of Natural Resources proposal for fighting wildfires and … Continue reading Commissioner Franz Proposes Historic $55M Wildfire, Forest Health Budget
November 19, 2018 Availability of the Proposal to Remove the Domestic Quarantine for Emerald Ash Borer https://content.govdelivery.com/accounts/USDAAPHIS/bulletins/20deded USDA Animal and Plant Health Inspection Service sent this bulletin at 09/18/2018 09:05 AM EDT APHIS is proposing to remove the domestic quarantine regulations for the emerald ash borer (EAB). Eliminating this regulation is in keeping with USDA’s … Continue reading Proposal to Remove the Domestic Quarantine for Emerald Ash Borer
Article by Glenn Kohler, DNR Forest Entomologist This spring and summer, the Washington State Department of Natural Resources (DNR) received numerous reports of dead or damaged Douglas-fir trees throughout the state. Symptoms include entirely red crowns in saplings and red tops or scattered red branches in trees. The damage is more common in dry lowland … Continue reading Douglas-fir Damage May Be Caused by Secondary Bark Beetles