The planting operation is one of the most significant performed by the viticulturist, affecting as it does the future productivity and quality of the vineyard. Not only are decisions as to row and vine spacing of importance, but the most significant of all is the nature of the grapevines planted....
In the interest of taking full advantage of a personal business trip to Frankfurt, West Germany to attend the 17th International Symposium for Grape Propagation, I offered to make contacts for the Wine Advisory Board. I was asked to focus and report on five topics of research interest to OSU...
A survey of costs of various techniques to control bird damages to grapes will be conducted this fall by Oregon State University in a project funded by the Oregon Wine Advisory Board. Costs of equipment, materials, labor, maintenance and interest on loans will be compiled for a variety of control...
During the last two years thrips have been suspected of causing shoot damage in the form of reduced leaf size and stunted vine growth in one vineyard in the Cave Junction area of Southern Oregon. While there can be several problems that can cause this symptom in grapes, it was...
For over 14 years there has been a Area Horticultural Extension Agent available to assist winegrape growers in Jackson and Josephine Counties with production problems by conducting educational programs and applied research projects. While the salary for this position is paid by Oregon State University Extension, support funds which pay...
For over 14 years there has been a Area Horticultural Extension Agent available to assist winegrape growers in Jackson and Josephine Counties with production problems by conducting educational programs and applied research projects. While the salary for this position is paid by Oregon State University Extension, support funds winch pay...
For over 14 years there has been a Area Horticultural Extension Agent available to assist winegrape growers in Jackson and Josephine Counties with production problems by conducting educational programs and applied research projects. While the salary for this position is paid by Oregon State University Extension, support funds which pay...
For over 14 years there has been an Area Horticulture Extension Agent available to assist winegrape growers in Jackson and Josephine Counties with production problems by conducting educational programs and applied research projects. While the salary for this position is paid by Oregon State University Extension, support funds which pay...
For over 13 years there has been an Area Horticultural Extension Agent available to assist winegrape growers in Jackson and Josephine Counties with production problems by conducting educational programs and applied research projects. While the salary for this position is paid by Oregon State University Extension, support funds which pay...
For over 13 years there has been an area horticultural Extension agent available to assist winegrape growers in Jackson and Josephine Counties with production problems by conducting educational programs and applied research projects. While the salary for this position is paid by Oregon State University Extension, support funds which pay...
For several years thrips have been suspected of causing shoot damage in the form of reduced leaf size and stunted vine growth in a vineyard in the Cave Junction area of Southern Oregon. While the symptoms described above can be caused by several problems, it was decided in 1992 to...
It is anticipated that at least one additional clone (Merlot 347) will be added when it becomes available in 1999. All clones are being propagated on 101-14 rootstock. Plots will be located in 5 vineyards from Ashland to the Applegate Valley. Each vineyard will have 20 vines of each clone,...
There are basically two types of grafting, bench grafting and field grafting. Worldwide the main reasons for bench grafting vines are: a) to obtain vines of the desired fruiting variety on roots resistant to phylloxera or nematodes, or b) to obtain vines on roots tolerant to certain soil conditions such...
This presentation and the 1986 visit to Oregon were by invitation from Oregon State University and the Wine Advisory Board, and supported by the Sokol Foundation. The ideal cooperation of Professor Porter Lombard and Mr. Steve Price is most gratefully acknowledged. We were in a learning experience, and humble in...
There have been significant changes in personnel assignments in the OSU Viticulture program during the past year, resulting in shifts in assignments and responsibilities affecting both research and extension in viticulture. Some of these changes are temporary and the current Extension program in viticulture should be considered an interim program....
One of the most important decisions growers make is the choice of planting stock. The right variety and clone matched to the right site is a solid foundation for success. But choosing planting stock involves more than choosing the genetic make-up of the grape. Grapes are hosts to a large...
Cool weather during fruit initiation and bloom can cause wide yield fluctuations in Oregon vineyards. These fluctuations in clusters per vine, flowers per cluster, and berries per cluster make yield prediction difficult. Over- or underestimates of yield have caused problems in marketing grapes and viticultural decision making. Oregon State University...
In 1983, our research group took on the task of answering the question: What are the characteristics of available Pinot noir clones in Oregon? Our main resources in this effort were the OSU Mother Block and two cooperative clonal trials at Knudsen Erath (KE) and Five Mountain Vineyards( 5M). Information...