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Defects in Black Cherry Caused by Barkbeetles and Agromizid Cambium Miners

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Feeding of Phloleotribus liminaris (Harris), was the most important cause of gum defects in Prunus serotina Ehrh., at two areas in West Virginia. The beetles feed and overwinter in the living bark of healthy trees, causing gum defects in the wood and balls of gum on the bark. The gum spots in the wood were inter-ray and occurred mostly in the early springwood but in some cases in the late summerwood. Parenchyma flecks, of the type cause by Phytobia pruni (Gross.) were shown to be directly associated with gum defects. Such flecks occurred within the rings and generally increased in numbers with the height of the tree. The associated gum spots were inter-ray and usually were at the ends of the fleck on the bark side. Gum defects of cambium miner origin were easily distinguished from defects caused by barkbeetles by the presence of parenchyma flecks and the occurrence of the defect within the ring. On poor sites, gum defects (apparently caused by wounding, knots, and unsuccessful barkbeetle attack) were common within the rings that were not associated with parenchyma flecks. Descriptions and illustrations of the defects are given, and suggestions made for silvicultural and chemical control.

Document Type: Journal Article

Affiliations: Assistant Professor, Dept. of Entomology and Dept. of Forestry and Wildlife, Virginia Polytechnic Inst., Blacksburg

Publication date: 1964-09-01

More about this publication?
  • Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2015 Impact Factor: 1.702
    Ranking: 16 of 66 in forestry

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
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