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Filtering by: Creator Lyon, L. Jack Non-Academic Affiliation Oregon State University. Extension Service

Western juniper : its impact and management in Oregon rangelands

Creator:

Bedell, Thomas E., Eddleman, L. E., Deboodt, Timothy L., Jacks, C., and Oregon State University. Extension Service

Abstract:

This publication acquaints you with the biology and ecology of western juniper and how the tree affects the landscapes it occupies.

Resource Type:

Technical Report

Full Text:

Rangelands T. E. Bedell, L. E. Eddleman, T. Deboodt, C. Jacks Thomas E. Bedell, Extension rangeland
Cherry bark tortrix moth

Creator:

Oregon State University. Extension Service, Westcott, R. L., and DeAngelis, Jack D.

Abstract:

CBT was first detected in North America during 1990 in southern British Columbia, Canada. The first recorded U.S. contact was in far northwestern Washington in February 1991. CBT distribution in the Old World suggests that cold will not limit the moth's range in Oregon. Warmer, drier areas may inhibit its...

Resource Type:

Technical Report

Full Text:

the bark N E S T A L E R Ch y Bark To Moth EC 140 rinted Ju Orego Univers Extens vice and Orego
Ash whitefly

Creator:

Oregon State University. Extension Service, Fisher, Glenn C., DeAngelis, Jack D., Westcott, R. L., and Oregon. Department of Agriculture

Abstract:

The ash whitefly, Siphoninus phillyreae, an Old World species, was discovered in southern California during the summer of 1988, and it has become widespread there. Populations build to enormous numbers, and the insects may heavily infest practically every leaf of certain favored host plants.

Resource Type:

Technical Report

Full Text:

Jack DeAngelis, Extension entomologists, Oregon State University. The host range for this insect—and