The goal of this Oregon State University affiliated research was to predict, through artificial inoculation, the symptoms and impact of Phytophthora ramorum on some western forest trees that have not yet been exposed to the pathogen in nature.
A systems approach for the production of healthy nursery stock. The manual, published by the Oregon Association of Nurseries, is divided into 3 main parts. A systems approach introduction, voluntary best practices for your nursery, and the next step: systems approach certification.
A comprehensive guide on P. ramorum. Topics discussed include; morphology, genetics, growth, distinguishing characteristics for identification, disease history, impacts in the forest, forest and wildland hosts and symptoms, and management and educational materials.
The purpose of this article is to report on progress in the development of Phytophthora-ID and the validation of its data sets using an extensive sample of Phytophthora spp. It is expected that Phytophthora-ID will also help in development and maintenance of culture collections.
For this study, researchers sought to determine if Phytophthora ramorum regularly colonizes the secondary xylem of tanoak (Lithocarpus densiflorus), and to quantify and visualize the frequency and extent of sapwood colonization.
Oregon State University affiliated author discusses the top 10 tips for preventing disease in nurseries. Specific topics addressed include site selection and drainage, sanitation practices, disease free plant sources, plants in container, and irrigation.
A comprehensive guide for forest managers, Christmas tree growers, and forest-tree nursery operators in Oregon and Washington on sudden oak death, the disease caused by the recently introduced Phytophthora ramorum.
Researchers investigated the the mechanism by which P. ramorum causes disease symptoms and mortality in tanoak trees. This study sought to determine the spatial and temporal development of tyloses in tanoak infected with P. ramorum, and the relationship between abundance of tyloses and specific conductivity of the xylem.
A review of the different means by which the potential for invasiveness in woody ornamentals can be reduced using genetic methods. Progress is reviewed in conventional breeding and transgenic biotechnology approaches to producing sterile forms of ornamental woody plants.
A recent report described a simple technique to double Cryptomeria japonica chromosomes. The objectives of this research was to evaluate the effectiveness of the technique and determine optimal treatment duration for doubling chromosome numbers in oriental arborvitae, american arborvitae, and western red cedar.