Mortality and Damage to Pacific Silver Fir by the Balsam Woolly Aphid in Southwestern Washington
The balsam woolly aphid (Chermes piceae Ratz.) was shown to be a serious pest of Pacific silver fir (Abies amabilis [Dougl.] Forbes) in the Pacific Northwest. The degree of damage was greatest on dominant and co-dominant trees growing on the best sites. The relative site index was related to the number of trees with stem infestations which in turn was related to the percent of dead trees in the stand and the general crown condition. Recommendations are given for minimizing losses from this important forest pest by the use of a penalty rating system.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Journal Article
Affiliations: Entomologist, Division of Forest Insect Research, Pacific Northwest Forest and Range Expt. Sta., Forest Service, U. S. Dept. Agric., Portland, Ore.
Publication date: 1963-11-01
More about this publication?
- Important Notice: SAF's journals are now published through partnership with the Oxford University Press. Access to archived material will be available here on the Ingenta website until March 31, 2018. For new material, please access the journals via OUP's website. Note that access via Ingenta will be permanently discontinued after March 31, 2018. Members requiring support to access SAF's journals via OUP's site should contact SAF's membership department for assistance.
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