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Filtering by: Creator Fisher, Glenn Academic Affiliation Botany and Plant Pathology

Biology and Demographics of Phylloxera in Western Oregon

Creator:

Strik, Bernadine C., Connelly, Anne, Fisher, Glenn, and Granett, Jeffrey

Abstract:

Since phylloxera's discovery in a commercial vineyard in August of 1990, nine infestations have been verified in Oregon. With over 95% of Oregon's vineyards planted with ownrooted, Vitis vinifera, non-resistant vines, understanding the insect's biology under our conditions has become important for determining management strategies that minimize rate of spread....

Resource Type:

Technical Report

Full Text:

of Horticulture Glenn Fisher, Department of Entomology, Oregon State University Jeffrey Granett
Population Density and Phenology of Tetranychus urticae (Acari: Tetranychidae) in Hop is Linked to the Timing of Sulfur Applications

Creator:

Woods, J. L., Dreves, A. J., Fisher, Glenn C., James, David G., Wright, Larry C., and Gent, D. H.

Abstract:

The twospotted spider mite, Tetranychus urticae Koch, is a worldwide pest of numerous agronomic and horticultural plants. Sulfur fungicides are known to induce outbreaks of this pest on several crops, although mechanisms associated with sulfur-induced mite outbreaks are largely unknown. Studies were conducted during 2007–2009 in Oregon and Washington hop...

Resource Type:

Article

Full Text:

. DREVES,1 G. C. FISHER,1 D. G. JAMES,2 L. C. WRIGHT,2 AND D. H. GENT3 Environ. Entomol. 41(3): 621Ð635