Developing High Quality True Fir Christmas Trees

Christmas tree
Describes the current market for true firs, characteristics of true-fir species, and the pests and environmental problems that harm firs. Details how to purchase top-quality seed, choose a growing site, design a plantation, and fertilize, as well as combat diseases, insects, animals, competing vegetation, and erosion. Covers shaping trees, including correcting multiple leaders, replacing lost leaders, pruning, and dealing with lamas growth. Provides a 9-year schedule of suggested activities for producing quality trees. Includes 6 tables, 19 figures, and a list of additional sources of information.

Christmas Tree Nutrient Management Guide for Western Oregon and Washington

Christmas tree
This guide is designed to help Christmas tree growers learn to assess a plantation’s nutritional needs based on soil and foliar analyses and rotational timing. It will help you design strategies for effective nutrient applications and produce high-quality trees with minimal negative environmental impact.

Weed Control in Nursery Field Production


Information and strategies for field growers on how to reduce weeds in their crops. Topics discussed include, field preparation, sanitation, cultural practices and proper herbicide selection and use.

Acidifying Soil for Crop Production West of The Cascade Mountains (Western Oregon and Washington)

Guide for growers west of the Cascade mountains growing in native soils. Topics include optimum pH levels for commonly produced crops, understanding pH and how to measure it correctly, problems and symptoms of too high and too low soil pH, and solutions for pH extremes.

Phytophthora ramorum:A Guide for Oregon Nurseries


Very informative and useful publication for nursery management and workers. Discusses the history of Phytophthora ramorum in Oregon and its biology, hosts and symptoms. In depth information on the management and prevention of the pathogen.

Propagation of Stewartia pseudocamellia var. Koreana by Cuttings

An overview of research conducted at the North Willamette Research and Extension Center on propagating Stewartia pseudocamellia. Information on seed propagation as well as techniques for cuttings discussed.

Management of Foliar Phytophthora Disease in Malus, Pyrus, and Rhododendron.

Research Final Report submitted to the Agricultural Research Foundation for the Oregon Association of Nurseries and the Nursery Research & Regulatory Committee by Oregon State University. Report looks at disease management of foliar Phytophthoras on nursery grown Malus, Pyrus and Rhododendron species.