Field trials were conducted during 2001 to 2003 to investigate soil population dynamics of Meloidogyne chitwoodi, tuber symptom suppression using oxamyl, and post-harvest tuber symptom development on short-season potato varieties Russet Norkotah and Russet Nugget (San Luis Valley only). The experiments were located in the San Luis Valley in Colorado,...
Planting date/cultivar evaluation: Thirty-six sweet corn cultivars were evaluated for resistance to natural infection by common smut (Table 1). Plots were seeded to 30,800 plants/acre on May 16 and Jun 23 on the Hermiston Agricultural Research and Extension Center on Adkins fine sandy loam (pH 6.7, 0.9% organic matter). The...
Thirty-one sweet corn cultivars were evaluated for resistance to natural infection by common smut. To determine if there is High Plains virus resistance in commercial processing sweet corn cultivars, trials were conducted at the Hermiston Agricultural Research & Extension Center, and in two commercial sweet corn production fields near Moses...
Silver scurf is caused by a fungus, Helminthosporium solani, a relatively new problem related to potato production in North America. It wasn’t until the early 1990s that this fungus was identified as being a serious problem in the Pacific Northwest. This fungus produces a surface blemish on tubers, causing them...
L-pipecolic acid (L-PA) is the higher homolog of proline. It occurs naturally in
many organisms, including primates, as an intermediate in lysine degradation. The
pathway by which lysine is converted into L-pipecolic acid employs the enzyme Lpipecolate
oxidase (L-PO), and appears to be tissue specific to the central nervous system...
Homeowners have a multitude of options for pest control. This guide suggests ways to control garden pests using safe and ordinary household chemicals. The good news is that the ingredients needed can be found in your kitchen or medicine cabinet. Examples include baking soda, beer, vegetable oil, chile peppers, vinegar,...
The potato tuberworm, Phthorimaea operculella, is a pest of many solanaceous crops, including potatoes. Commonly found in tropical and subtropical regions throughout the world, potato tuberworm (PTW) is one of the most important constraints to potato production worldwide. Larvae of this species mine leaves, stems, and petioles and excavate tunnels...
Impact of natural infection of common com smut (Ustilago maydis) on processing
characteristics of three F₁ hybrid sweet com (Zea mays L.) cultivars was evaluated in a
two-year study with early and late spring planting dates. At harvest maturity, size and
location of galls were recorded and quality characteristics measured....
This publication is offered as a reference to Integrated Pest Management (IPM) resources available to Oregon growers. It highlights university, federal, state, and private services and resources that provide support to growers in the implementation of IPM programs. The Guide consists of five sections: • An introduction to the National...
This thesis explores the role of Quaker women in science in an attempt to arrive at some understanding of what motivated Quaker women in nineteenth century America to go into the sciences. George Fox founded the Society of Friends in the mid-seventeenth century in England and the Quaker theology centered...
Published June 2001. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Two studies were conducted to determine the effect of varying vitamin B-6 (B- 6) status on lymphocyte mitogenic response and pyridoxal 5'-phosphate (PLP) concentration in peripheral blood mononuclear cells (PBMC) in young women. In the first study, women were fed 1 mg/d for the first week and 1.5, 2.1 and...