Research was conducted at Oregon State University affiliated Lewis-Brown Farm in Corvallis, OR on crab apple cultivars to identify which ones possessed desirable traits for ornamental horticulture. Recommendations for which cultivars to grow in the Pacific Northwest along with performance data on blossom and fruiting periods are provided.
Due to widespread interest in Old Home as a pear rootstock, studies were conducted to test its disease resistance and to establish effective propagation methods. The Oregon State University affiliated author discusses the results of the study and provides propagation recommendations.
Greenhouse studies and field surveys were conducted in Oregon in an effort to identify what was causing red leaf spotting in holly production in the Pacific Northwest. The field surveys were conducted in 1960 and 1961 at multiple holly orchards in several different Oregon counties.
Pear fire blight and pear decline are discussed in relation to rootstocks, trunk-stocks, scions, fruit production, fruit quality. The author offers insight into studies conducted on pear trees in Oregon and Washington.
After observing the yellowing and dying of carnation stem tips in the Portland, OR and Corvallis, OR research was conducted on the William Sim carnation to find out the cause of the growth issues. The results of the study indicated a possible boron deficiency and are discussed by the author.
Cuttings of several kinds of deciduous azaleas were tested in studies addressing the lack of growth for rooted cuttings in the fall and winter. The study was based on the idea that fall and winter growth could reduce the time needed to produce a marketable plant.
Two separate variety trials were conducted on growing flowering crab apples on Malling rootstocks. The studies were conducted by Massachusetts State College and Oregon State College based on interest in size-control for landscaping plantings.
Oregon State University affiliated studies were conducted after a report was released about using night interruption with incandescent lighting on holly cuttings. The results from the Oregon study were found to differ from the results of the USDA report released out of Maryland State College.
The effectiveness of various treatments for control of powdery mildew was tested on 360 rose plants. The three varieties of roses used in the study were chosen because of their susceptibility to powdery mildew.