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Insects and Leaf Area Losses of Planted Northern Red Oak Seedlings in an Ozark Forest

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Insects representing 25 families from six orders were associated with northern red oak (Quercus rubra L.) seedlings planted in clearcut and partially cut plots. Most insect taxa were equally represented in both plot types. However, three of the most abundant insects were found in only one plot type: Cyrtepistomus castaneus (Roelofs) and Limonius spp. in partial cuts and Attelabus bipustulatus Fabricius in clearcuts. Linear regression equations were derived for estimating leaf area before defoliation from either leaf length or petiole diameter. Oak seedlings in clearcuts had twice the number of leaves and potential standing leaf area as seedlings in partial cuts throughout the growing season. Leaf area losses in both overstory types averaged about 22 percent of potential standing leaf area by 30 October. Forest Sci. 32:11-20.

Keywords: Asiatic oak weevil; Cyrtepistomus castaneus; Quercus rubra; oak reproduction

Document Type: Journal Article

Affiliations: Former Professor, Department of Entomology, University of Missouri, Columbia 65211 (current address, Kearby Christmas Tree Farm, Sheldon, WI 54766)

Publication date: March 1, 1986

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