Developing Sheared Douglas-fir Christmas Trees

Christmas tree
Discusses how to select a plantation, choose quality seed, prepare the ground for planting, lay out a plantation, plant stock, manage weeds and pests, and plan for the next crop. Describes preshearing, basal pruning, shearing techniques, and shearing tools. Provides a year-by-year cultural schedule that covers planting to harvest. Includes 3 tables, 15 figures, and sources of additional information.

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.

Biology and Control of Douglas-fir Needle Midge in Christmas Trees

xmas tree
Publication covers life cycle, identification, cultural and chemical control of the Douglas-fir needle midge.

Weed Control in Nursery Field Production

Weeds

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)

Soil/media
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

Disease

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.

Chlorosis in Field Grown Maples

Plant disorders
This article discusses the primary cause of chlorosis in field grown maples, research conducted, a brief synopsis of results, and management guidelines for preventing maple chlorosis.

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