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Meadow Deathcamas in the Pacific Northwest

Found in all areas of the Pacific Northwest, meadow deathcamas (Toxicoscordion venenosum) is capable of killing livestock whether eaten as forage or in dried hay. Human poisonings have been reported in connection ...

Gary L. Piper, Dale K. Whaley | Oct 2013 | Extension Catalog publication Peer reviewed (Orange level)

Western Waterhemlock in the Pacific Northwest

Western waterhemlock (Cicuta douglasii) is the most poisonous plant in North America. This publication provides identifiers to assist in avoiding the toxic plant, including ways to distinguish it from other species ...

Dale K. Whaley, Gary L. Piper | Oct 2013 | Extension Catalog publication Peer reviewed (Orange level)

Large Raspberry Aphid

Large raspberry aphid (Amphorophora agathonica), is an important pest in red and black raspberries in the Pacific Northwest. It transmits plant viruses that cause decreased cane vigor and fruit quality, making it a...

Dani Lightle, Jana Lee | Aug 2013 | Extension Catalog publication Peer reviewed (Orange level)

Scouting for Grape Powdery Mildew

This publication provides vineyard owners with approaches for finding the first occurrence of grape powdery mildew. The publication covers tactics to manage powdery mildew, including use of fungicides and canopy ...

Jay W. Pscheidt | May 2013 | Extension Catalog publication Peer reviewed (Orange level)

Living on the Land: Attracting Birds of Prey for Rodent Control

This publication is part of the Living on the Land series. It provides concise information on the value to farmers and ranchers of barn owls and American kestrels for rodent control, and ways to help build ...

Shilah Olson, Karen Lamson, Mike Omeg, Brian Tuck, Susan Kerr, Ellen Hammond | Dec 2012 | Extension Catalog publication Peer reviewed (Orange level)

Organic Management of Flea Beetles

Flea beetles are common garden pests found throughout the Pacific Northwest. Flea beetle feeding on plants in the Brassicaceae and Solanaceae families can scar foliage and potato tubers, leading to reduced marketable...

Joyce Parker, Carol A. Miles, Toddy Murray, William Snyder | Nov 2012 | Extension Catalog publication Peer reviewed (Orange level)

Rush Skeletonweed

Rush skeletonweed is an exotic herbaceous biennial or creeping perennial plant that has become troublesome in many western states. Rush skeletonweed aggressively infests rangeland, cropland, and disturbed areas. This ...

Stephen M. Van Vleet, Eric M. Coombs | Oct 2012 | Extension Catalog publication Peer reviewed (Orange level)

Using Entomopathogenic Nematodes for Crop Insect Pest Control

Topics covered include the life cycle of entomopathogenic nematodes; how they control insect pests; obtaining, using, and storing; soil conditions necessary; application preparation, equipment, and rates; pesticide safety; and websites that provide more specific information.

Carol A. Miles, Caitlin Blethen, Randy Gaugler, David Shapiro-Ilan, Toddy Murray | May 2012 | Extension Catalog publication Peer reviewed (Orange level)

Wheat Head Armyworm True or False: A Tale from the Pacific Northwest

Armyworm caterpillars can be a troublesome pest in cereal grains grown in the Pacific Northwest states. This publication presents information about the pest and its control.

Silvia I. Rondon, Mary Corp, Diana Roberts, Keith S. Pike, Peter J. Landolt, Dustin Keys | May 2011 | Extension Catalog publication Peer reviewed (Orange level)

Knotweed Shrub Complex: Identification, Biology, and Management

Being able to correctly identify the five knotweeds that grow in the Northwest can help you choose the best control strategies. Color photographs of the weeds accompany a detailed chart describing the stems, ...

Timothy S. Prather, Tim Miller-Morgan, Sandra S. Robins | Oct 2009 | Extension Catalog publication Peer reviewed (Orange level)