Cover Crops in Christmas Trees
- Spend an afternoon touring two Christmas tree plantations and visiting with owners who have years of experience using in-row cover crops. Other experts will join the group in discussions of species and seeding methods.
- Please register with Chal Landgren.
- This event is FREE!
Christmas Tree Progeny Trials
Below are links to articles published in The Christmas Tree Lookout by the Pacific Northwest Christmas Tree Association. These articles were written by many industry professionals about past and ongoing progeny trials in the Northwest. They contain interesting information on several Christmas tree species including Douglas-fir, Noble fir, Nordmann and Turkish fir.
Christmas tree Economics
- OSU Horticulture Resources
Current research and information about nursery, greenhouse and Christmas trees
Pacific Northwest Pest Management Control Handbooks
- Biocontrol in Field Conifers (pdf) Jana Lee, ARS/Horticultural Crops Research Unit
- "OSU Extension helps Oregon's Christmas tree industry"
- "Stump Removal Reduces Annosus Root Rot Losses" written by Gary Chastagner, WSU.
- "Changes in Needle Nutrient Concentration" written by John Hart, Rick Fletcher, Chal Landgren, Linda Brewer, Mike Bondi and Steve Webster.
- "Cover Crops Taking Root In Christmas Trees"-History of using cover crops in Christmas tree plantations.
- "Innovative Growers Sent Christmas Trees A Flying" written by Jim Heater. History of using helicopters in Christmas tree harvesting.
- "Making Aphid Damage A Thing of the Past" Paul Jepson's strategies for IPM in Christmas trees to control aphids.
- Chal Landgren, Extension Specialist—Christmas Trees
- Judy Kowalski, Bio Science Research Technician 3—Nursery, Christmas Trees, and Specialty Crop Registrations