Spruce Aphid
The spruce aphid, Elatobium abietinum, is destructive of the spruce forests, especially Sitka. Aphid numbers are greatest in February and March, before their damage is discovered. Where damage …
Revised: May 2008
Hurry! Only left in stock.
somdn_product_pageRelated publications
-
Accepted Here! Food Access Programs at Washington State Farmers Markets
The Supplemental Nutrition Assistance Program (SNAP) and the Farmers Market Nutrition Program (FMNP) are designed to provide individuals and families in need with access to food and a more healthful d ...
- Published:
- November 2017
- SKU:
- TB44E
somdn_product_page -
A Guide to Washington State's Urban Tree Canopy
More than 80% of the nation’s population lives in urban areas. The urban tree canopy (UTC) is an essential part of an urban areas’ infrastructure—an ecosystem characterized by trees and other vegetati ...
- Published:
- December 2016
- SKU:
- EM107E
Authors:somdn_product_page -
A Gardener’s Primer to Mycorrhizae: Understanding How They Work and Learning How To Protect Them (Home Garden Series)
Mycorrhizae are symbiotic associations between many plants and the beneficial fungi that colonize their roots. Gardeners are often unaware of these relationships and may inadvertently injure or kill t ...
- Published:
- July 2017
- SKU:
- FS269E
Authors:somdn_product_page -
