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Filtering by: Subject Foliar diagnosis -- Northwest, Pacific

Growing hazelnuts in the Pacific Northwest : orchard nutrition

Creator:

Olsen, Jeff L. and Oregon State University. Extension Service

Abstract:

This publication lists the components of a comprehensive nutrient management strategy and provides nutrition guidelines for mature and new hazelnut orchards.

Resource Type:

Technical Report

Full Text:

Growing Hazelnuts in the Pacific Northwest: Orchard
Pacific Madrone Leaf Blight Detection with Unmanned Aerial Systems and Machine Learning

Creator:

Barker, Matthew I.

Abstract:

Ground-based assessments of foliar diseases including leaf blight are time-consuming and costly. We investigated the potential for using an unmanned aerial system (UAS) in conjunction with a multispectral sensor to determine whether we could more efficiently and reliably detect and quantify leaf blight in Pacific madrones. Our methods included ground-based...

Resource Type:

Masters Thesis

Full Text:

evergreen tree species native to the US Pacific Northwest region recognized for its smooth, regular bark
Grapevine growth distortions: a guide to identifying symptoms

Creator:

Oregon State University. Extension Service, Walton, Vaughn M., Skinkis, Patricia A., Dreves, A., Kaiser, Clive, Renquist, S., Castagnoli, S., and Hilton, R.

Abstract:

Many factors can cause distorted growth in grapevines. One cause of distorted growth is a disorder known as Short Shoot Syndrome (SSS), which is associated with mite feeding damage. However, similar abnormal growth symptoms can be caused by spring frost damage, herbicide damage, vine imbalance (overcropping of vines), nutrient deficiency...

Resource Type:

Technical Report

Full Text:

in the Pacific Northwest. Vaughn Walton, horticultural entomologist; Patty Skinkis, Exten- sion