Skip to main content

Pruning Western White Pine in British Columbia to Reduce White Pine Blister Rust Losses: 10-Year Results

Buy Article:

$21.50 plus tax (Refund Policy)

Survey lines were located in areas that had been pruned to control blister rust (Cronartium ribicola) 10 yr previously and adjacent control (unpruned) areas in 10 stands of western white pine. Stands were classified as densely stocked, moderately stocked, or open. Cankers were tallied and their position noted. The success of pruning varied from stand to stand. Since the stands had not been pruned at an early age, there was only a 4 and 5% reduction in threatening cankers and stem cankers respectively, as few new cankers were initiated. Stands with the greatest increase in cankering had Ribes spp., were open grown, or possessed a high component of small white pine. Repruning these specific stands may be worthwhile, but in general, entering stands again to do either pruning or scribing would produce few additional healthy trees. Doing both treatments, however, may significantly enhance the number of healthy stems. To optimize the benefits of pruning, stands should be entered early and pruning should continue until a sufficient number of stems are pruned to a height of 3 m to ensure full stocking. Other species may be impediments to spore movement within stands, and thus they should not be pruned. Dense stands initially had less rust than open stands and could be entered later, but once spaced, they also need to be pruned to 3 m to minimize rust infection. West. J. Appl. For: 13(2):60-63.
No References
No Citations
No Supplementary Data
No Data/Media
No Metrics

Document Type: Journal Article

Affiliations: Canadian Forest Service, Pacific Forestry Centre, 506 W. Burnside Rd., Victoria BC V8Z 1M5, (250) 363-0640;, Fax: (250) 363-0775

Publication date: 1998-04-01

More about this publication?
  • Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Western Journal of Applied Forestry covers the western United States, including Alaska, and western Canada; WJAF will also consider manuscripts reporting research in northern Mexico that has potential application in the southwestern United States.
  • Membership Information
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more