The Stalactiform Rust on Jack Pine
The stalactiform rust caused elongate diamond-shaped cankers on pole-sized and mature lack pine. Symptoms on seedlings are not always distinguishable from C. comptoniae or C. comandrae. Nine-week-old seedlings were inoculated with C. quercuum, C. comptoniae, C. comandrae, and P. stalactiforme. Mortality seven years after inoculation was 36, 68, 77, and 74 percent respectively. Little decay was found behind the stalactiform rust cankers. A dissection study of 56 cankers on 46-year-old trees indicated that only 2.6 cubic feet of red rot had developed caused by Fomes pini. Mortality, in pole-sized and mature trees is rare. Nursery infection appears to be the most serious aspect of this disease. Pycnia form from mid August until mid October and aecia the following spring. On mature trees, rodents feed on pycnia which develop on the canker margins. In many cases this feeding appears to have arrested canker development.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Journal Article
Affiliations: Principal Plant Pathologist, Lake States Forest Expt. Station, Forest Service, U.S. Dept. Agric., St Paul, Minn.
Publication date: 1967-06-01
More about this publication?
- The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
2016 Impact Factor: 1.675 (Rank 20/64 in forestry)
Average time from submission to first decision: 39.6 days*
June 1, 2016 to Feb. 28, 2017
Also published by SAF:
Other SAF Publications
- Submit a Paper
- Membership Information
- Author Guidelines
- SAF Convention Abstracts
- Ingenta Connect is not responsible for the content or availability of external websites