The Pacific Northwest has become one of the nation’s premier sweet cherry,
Prunus avium, production areas. As production of sweet cherries has flourished in
Oregon and Washington, so has powdery mildew, caused by the fungus
Podosphaera clandestina, which infects both foliage and fruit causing severe
economic damage to growers. Sweet...
The objective of this dissertation is to introduce low-cost processing methods for the fabrication of ZnO transparent thin-film transistors (TTFTs). A novel method for depositing ZnO body layers via spin-coating of a zinc nitrate-based spin solution is presented. The processing conditions of spin-coated ZnO are optimized to produce continuous and...
Gray mold, one of the most serious decay problems for pear fruit in the Pacific Northwest, is estimated to cause about $6 million in losses to the pear industry each year due to fruit rot in storage. These losses can be minimized by recognizing the factors that contribute to disease...
This publication gives a concise description of the causes, symptoms, and disease cycle of pear scab. It also describes the OSU-MCAREC three-part model to predict scab risk and help time fungicide sprays. Integrating nonchemical methods and fungicide applications optimized with the OSU-MCAREC model can result in production of high-quality pears...
Potential sources of inoculum of Phialophora malorum
were investigated. P. malorum was found to be a soil-borne
fungus whose role as a postharvest pathogen of pear is
dependent upon passive dispersal with infested soil. P.
malorum survived in soil under a wide range of conditions,
with greatest survival in cool,...
Pesticides—including insecticides, acaricides, fungicides, and bactericides are essential for maintaining healthy crops with reliable yields and quality. In many instances, pesticides have become less effective as target organisms have developed resistance. The first record of resistance dates to 1897, when orchardists began having problems controlling San Jose scale (Quadraspidiotus perniciosus...
Bacterial canker is the number one killer of young sweet cherry trees in Oregon. This publication covers cause and symptoms, disease cycle, and disease management. A version for mobile devices is also available.
Full Text:
canker of sweet cherry in Oregon
Bacterial canker of
sweet cherry in Oregon
Robert A. Spotts, Jeff
Bacterial canker is the number one killer of young sweet cherry trees in Oregon. This publication covers cause and symptoms, disease cycle, and disease management. A version for mobile devices is also available.
Full Text:
E M E N T
Robert A. Spotts, Jeff Olsen, Lynn Long, and Jay W. Pscheidt
EM 9007 • May 2010
Ph
Bacterial canker is the number one killer of young sweet cherry trees in Oregon. This publication covers cause and symptoms, disease cycle, and disease management. A version for mobile devices is also available.
Observations of wind, currents, sea level and hydrography
obtained during the 1972 Coastal Upwelling Experiment (CUE-I) are
described. Only phenomena with periods longer than a day are considered.
One section describes the changes observed during a period
of variable winds in early July 1972. Another describes a ribbon of
relatively...