Redband trout (Oncorhynchus mykiss gairdneri) are found over a wide range of environmental conditions and are known for their variability in life history traits among watersheds or even within streams. Life history traits and population structure of these trout can be influenced by a variety of anthropogenic changes including habitat...
Powdery mildew of hop (Podosphaera macularis) may cause economic loss due to reductions in cone yield and quality.
Quantitative estimates of crop damage from powdery mildew remain poorly characterized, especially the effect of late season
disease management on crop yield and quality. Field studies in Washington State evaluated cone yield,...
Full Text:
*, G. G. Grove, M. E. Nelson, S. N. Wolfenbarger and J. L. Woods
USDA-ARS Forage Seed and Cereal
Powdery mildew of hop (Podosphaera macularis) may cause economic loss due to reductions in cone yield and quality.
Quantitative estimates of crop damage from powdery mildew remain poorly characterized, especially the effect of late season
disease management on crop yield and quality. Field studies in Washington State evaluated cone yield,...
Full Text:
late season management
Gent, D. H., Grove, G. G., Nelson, M. E., Wolfenbarger, S. N. and Woods, J. L
Powdery mildew of hop (Podosphaera macularis) may cause economic loss due to reductions in cone yield and quality. Quantitative estimates of crop damage from powdery mildew remain poorly characterized, especially the effect of late season disease management on crop yield and quality. Field studies in Washington State evaluated cone yield,...
Management of grape powdery mildew (Erysiphe necator) and other polycyclic diseases often relies on calendar-based pesticide application schedules that assume the presence of inoculum. An inexpensive, loop-mediated isothermal amplification (LAMP) assay was designed to quickly detect airborne inoculum of E. necator to determine when to initiate a fungicide application programme....
Downy mildew (caused by Pseudoperonospora humuli) and powdery mildew (caused by Podosphaera macularis) are important diseases of hop in the Pacific Northwest United States, and cultural practices may affect the severity of both diseases. The association of spring pruning quality and timing with severity of downy mildew and powdery mildew...
The Willamette River, one of only 14 American Heritage Rivers, flows through the most densely populated and agriculturally productive region of Oregon. Previous biological monitoring of Willamette River fish detected elevated frequencies of skeletal deformities in fish from certain areas of the lower (NP [NP], rivermile [RM] 26-55) and middle...