College of Agricultural Sciences

A propagation project on English Holly (Ilex aquifolium) at Oregon State University looked at the effectiveness of holly propagation by air layering cuttings with berries for market potential. Another propagation project discussed examined various degrees of shading and mist.

Several English apple rootstock were studied in variety trails and are discussed in regard to differences in production, tree size, and resistance to specific pests.

A discussion of the Christmas tree industry in the Pacific Northwest during the early 80's and its future economic outlook for growers. Oregon statistics of the era are listed including harvest numbers and estimated planting numbers.

A helpful publication for anyone considering growing Douglas-fir Christmas trees or for current growers. Covers cost of production and provides necessary tools for financial management and decision making.

A helpful publication for anyone considering growing Noble Fir Christmas trees or for current growers. Covers cost of production and provides necessary tools for financial management and decision making.

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.

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.