Filbertworm is the insect pest of greatest economic importance in Oregon hazelnut production. This publication explains how to Implement mating disruption as a strategy that will reduce damage caused by filbertworm ...
Betsey Miller, Daniel Dalton, Linda Brewer, Vaughn Walton |
Apr 2022 |
Extension Catalog publicationPeer reviewed (Orange level)
Collection of forage resources, mostly for Coastal Oregon regions. Includes studies on fiber digestibility, phosphoric soil, rations, and cost/benefit of growing and buying locally grown forages.
This publication gives a brief introduction to hazelnuts, which are sometimes called filberts. It provides an overview of hazelnut history, growth and production, geographic distribution, and hazelnut industry organizations.
This publication includes tables that summarize characteristics of the main hazelnut varieties produced in the United States, lists varieties' susceptibility to eastern filbert blight, and shows varieties' compatibility with each other for pollination.
Jeff L. Olsen, Shawn Mehlenbacher, Rebecca L. McCluskey, David Smith |
Mar 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
This publication provides a glossary of botanical terms related to hazelnut pollination and describes the flower and nut development process, pollination, and related issues.
Describes key identification features, life cycle, and pest status of filbertworm, filbert weevil, filbert aphid, and hazelnut aphid. Includes color photos.
Vaughn Walton, Ute Chambers, Amy J. Dreves, Denny Bruck, Jeff L. Olsen |
Jul 2021 |
Extension Catalog publicationPeer reviewed (Orange level)
Learn how to control insects, weeds and disease during each stage of hazelnut growth. View the app version View diseases, pests and products by crop stage on a web-based app. Try the app
Nik Wiman, Jay W. Pscheidt, Marcelo Moretti |
Apr 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
Photo: Sheryl Costello, USDA Forest Service (Cropped from original)
You may have encountered white, segmented “worms” or grubs when chopping firewood and wondered what they were. Common questions include, did they kill my tree? And are they a danger to other trees? The quick answers are no, and no.