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- Title
Phloem and xylem nitrogen variability in Quercus rubra attacked by Enaphalodes rufulus.
- Authors
Haavik, Laurel J.; Ayres, Matthew P.; Stange, Erik E.; Stephen, Fred M.
- Abstract
We analyzed nitrogen (N) content in phloem and xylem of 75 northern red oak, Quercus rubra L. (Fagaceae), removed in 2002-2007 from three sites within the Ozark National Forest, Arkansas, to investigate the relationship between vascular tissue N status and wood borer infestation. Populations of native red oak borer, Enaphalodes rufulus (Haldeman) (Coleoptera: Cerambycidae), experienced an outbreak and population crash during the sampling period. Vascular tissue N was not correlated with borer infestation density (exit holes/m-2/bark surface), which suggests variation in N status of vascular tissue was not influenced by or did not influence borer success. Vascular tissue N was greater in trees sampled during winter months than in trees sampled in spring and summer months.
- Subjects
OZARK National Forest (Ark.); ARKANSAS; PLANT cells &; tissues; NITROGEN; RED oak
- Publication
Canadian Entomologist, 2011, Vol 143, Issue 4, p380
- ISSN
0008-347X
- Publication type
Article
- DOI
10.4039/n11-016