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ANATOMICAL BASIS FOR CONELET ABORTION ON PINUS ECHINATA FOLLOWING FEEDING BY LEPTOGLOSSUS CORCULUS (HEMIPTERA: COREIDAE)

Published online by Cambridge University Press:  31 May 2012

Gary L. DeBarr  and
Paul P. Kormanik
Gary L. DeBarr
Affiliation:
Forestry Sciences Laboratory, Southeastern Forest Experiment Station, USDA Forest Service, Athens, Georgia
Paul P. Kormanik
Affiliation:
Forestry Sciences Laboratory, Southeastern Forest Experiment Station, USDA Forest Service, Athens, Georgia
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Abstract

Second-instar nymphs of Leptoglossus corculus (Say) confined to shortleaf pine conelets for only 4 days caused 100% conelet abortion. The bugs fed almost exlusively on the cytoplasm of cells of the nucellar tissue. Feeding in May produced an abscission zone in only a few days and resulted in conelet abscission in less than 2 weeks. Similar ovule destruction, followed by conelet abortion, occurred in late summer after being fed upon by the same instar, but conelet abscission was prevented because of a greater proportion of tracheary elements in the conelet stalks.

Type
Articles
Information
The Canadian Entomologist , Volume 107 , Issue 1 , January 1975 , pp. 81 - 86
Copyright
Copyright © Entomological Society of Canada 1975

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References

Abeles, F. B. 1968. Role of RNA and protein synthesis in abscission. Plant Physiol. 43: 1577–1586.Google ScholarPubMed
Bramlett, D. L. 1972. Cone crop development records for six years in shortleaf pine. For. Sci. 18: 31–33.Google Scholar
DeBarr, G. L. 1967. Two new sucking insect pests of seed in southern pine seed orchards. U. S. Dep. Agric. For. Serv. Res. Note SE–78. 3 pp. Southeast. For. Exp. Stn., Asheville, N. C.Google Scholar
DeBarr, G. L. and Ebel, B. H.. 1974. Conelet abortion and seed damage of shortleaf and loblolly pines by a seedbug, Leptoglossus corculus. For. Sci. 20: 165–170.Google Scholar
DeBarr, G. L. and Merkel, E. P.. 1971. Mist blower spraying of longleaf pine for cone and seed insect control. U. S. Dep. Agric. For. Serv. Res. Pap. SE–76. 7 pp. Southeast. For. Exp. Stn., Asheville, N. C.Google Scholar
Johansen, D. A. 1940. Plant microtechnique. McGraw-Hill Co., New York. 523 pp.Google Scholar
Krugman, S. L. and Koerber, T. W.. 1969. Effect of cone feeding by Leptoglossus occidentalis on Ponderosa pine seed development. For. Sci. 15: 104–111.Google Scholar
McLemore, B. F. 1973. Chemicals fail to induce abscission of loblolly and slash pine cones. U. S. Dep. Agric. For. Serv. Res. Note SO–155. 3 pp. Southern For. Exp. Stn, New Orleans, La.Google Scholar
McLemore, B. F. 1974. Anatomical characteristics of loblolly and slash pine cone stalks. For. Sci. 20: 41–46.Google Scholar
Morris, C. L. and Schroeder, W. J.. 1966. Pine cone mortality. Va Forests 21: 18–20.Google Scholar
TeBeest, D., Durbin, R. D., and Kuntz, J. E.. 1973. Anatomy of leaf abscission induced by oak wilt. Phytopathology 63: 252–256.CrossRefGoogle Scholar
Yates, H. O. III, and Ebel, B. H.. 1972. Shortleaf pine conelet loss caused by the Nantucket pine tip moth, Rhyacionia frustrana (Lepidoptera: Olethreutidae). Ann. ent. Soc. Am. 65: 100–104.CrossRefGoogle Scholar