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Top Dying of Conifers from Sudden Cold

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Abstract:

Western foresters have occasionally been alarmed by the sudden and unexpected appearance of dead tops on thrifty pines. Since insects are a common cause of top-killing in conifers and are often found in the dead pine tops, the killing is usually presumed to be of insect origin. From the investigations reported here it is apparent that sudden temperature changes resulting in killing of bark in the tops is sometimes the primary cause of such dieback, even at temperatures well above those normally considered to be damaging.

Document Type: Journal Article

Affiliations: Senior Pathologist, Division of Forest Pathology, Bureau of Plant Industry, Soils and Agricultural Engineering, Agricultural Research Administration, U. S. Department of Agriculture, San Francisco, Calif. Member, S.A.F.

Publication date: January 1, 1949

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.

    2015 Impact Factor: 1.476
    Ranking: 22 of 66 in forestry

    Also published by SAF:
    Forest Science
    Other SAF Publications
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