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Creator:: Woods, J. L. and Gent, D. H.
Abstract:: The hop looper, Hypena humuli Harris, is a reemergent pest of hop that often requires treatment to mitigate crop damage. In 4 yr of field trials, plots treated with fungicides were observed to sustain less hop looper defoliation compared with nontreated plots. Further investigation revealed that abundance of hop looper...
Resource Type:: Article
Full Text:: /EC13546 Entomological Society of America Version of Record http://cdss.library.oregonstate.edu/sa

Creator:: Woods, J. L., Dreves, Amy J., James, D. G., Lee, J. C., Walsh, D. B., and Gent, D. H.
Abstract:: The temporal development of biological control of arthropod pests in perennial cropping systems is largely unreported. In this study, the development of biological control of twospotted spider mite, Tetranychus urticae Koch, and hop aphid, Phorodon humuli (Schrank), in a new planting of hop in Oregon is described over a period...
Resource Type:: Article
Full Text:: , 107(2), 570-581. doi:10.1603/EC13488 10.1603/EC13488 Entomological Society of America Version of

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:: , OR 97331 (e-mail: gentd@onid.orst.edu). 0046-225X/12/0621Ð0635$04.00/0 � 2012 Entomological Society

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