Preference for medium dense grass tussocks byHippodamia convergens [Col.: Coccinellidae] |
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Authors: | Jaime Yanes Jr. B. O. Cartwright R. D. Eikenbary W. D. Warde |
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Affiliation: | 1. Department of Entomology, Oklahoma State University, 74078, Stillwater, OK 2. Dep. of Entomology, VPI & SU, 24061, Blacksburg, VA 3. Dep. of Statistics, Oklahoma State University, 74078, Stillwater, OK
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Abstract: | The preference in the choice of hibernacula of the convergent lady beetle,Hippodamia convergens Guérin-Meneville, was investigated with regard to morphological aspects of 2 introduced range grasses,Panicum coloratum (L.), andEragrostis curvula (Schrad.) Beetles strongly preferred tussocks with a ratio in the range of 1.0–3.0 stems per cm2 for lovegrass. Preference for klein grass tussocks ranging from 110–130 stems/clump was found. No preference was shown for a particular tussock circumference. It was demonstrated that tussocks could successfully be designated as suitable for beetle aggregation. |
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