Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-06T10:58:46.579Z Has data issue: false hasContentIssue false
  • English
  • Français

Age-specific life-table data for the Eucalyptus boring beetle, Phoracantha semipunctata (F.) (Coleoptera: Cerambycidae), in Malawi

Published online by Cambridge University Press:  10 July 2009

W. Powell
W. Powell
Affiliation:
Forest Research Institute of Malawi, P.O. Box 270, Zomba, Malawi
Get access Rights & Permissions [Opens in a new window]

Abstract

Age-specific life-table data were collected over a year for field and insectary populations of Phoracantha semipunctata (F.) on logs of Eucalyptus grandis in Malawi. Most mortality occurred in the larval stage, and the major mortality factor was intraspecific competition. Severe overcrowding led to a reduction in population density from one generation to the next. Overcrowding also led to a reduction in beetle size and to a shift in the sex ratio in favour of males. Elimination of potential breeding sites is recommended as an effective control measure for this pest.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 72 , Issue 4 , December 1982 , pp. 645 - 653
Copyright
Copyright © Cambridge University Press 1982

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bytinski-Salz, H. & Neumark, S. (1952). The eucalyptus borer (Phoracantha semipunctata F.) in Israel.—Trans. IXth Int. Congr. Ent. 1, 696–699.Google Scholar
Chararas, C. (1968). Rôle de Phoracantha semipunctata Fab. (Coléoptère Cerambycidae Xylophage) dans le déperissement des Eucalyptus en Tunisie et étude des phases de vitalité des diffêrentes espèces.—C. r. hebd. Séanc. Acad. Sci., Paris 267D, 1293–1296.Google Scholar
Chararas, C., Courtois, J. E., Le Fay, A. & Thuillier, A. (1971). Biologie, évolution et nutrition de Phoracantha semipunctata F. Coléoptère Cerambycidae spécifique des Eucalyptus.—C. r. Séanc. Soc. Biol. 165, 1565–1568.Google Scholar
Curry, S. J. (1962). The biology and control of Oemida gahani Distant, (Cerambycidae), in Kenya.—Proc. 8th Br. Commonw. For. Conf. 1–14.Google Scholar
Deevey, E. S. (1947). Life tables for natural populations of animals.—Q. Rev. Biol. 22, 283–314.CrossRefGoogle ScholarPubMed
Drinkwater, T. W. (1975). The present status of Eucalyptus borers Phoracantha spp. in South Africa.—Proc. 1st Congr. ent. Soc. sth. Afr. 119–129.Google Scholar
Ivory, M. H. (1977). Preliminary investigations of the pests of exotic forest trees in Zambia.—Commonw. For. Rev. 56, 47–56.Google Scholar
Langstrom, B. (1976). Studies on methods to control attacks of Phoracantha species on Eucalyptus species.—Zambia, Division of Forest Research no. 401, 8 pp.Google Scholar
Löyttyniemi, K. (1975). Forest insect pests in commercial Pinus and Eucalyptus plantations in Zambia.—Zambia, Division of Forest Research, Interim Report (July 1975), 24 pp.Google Scholar
Miller, R. S. (1967). Pattern and process in competition.—Adv. Ecol. Res. 4, 1–74.CrossRefGoogle Scholar
Moore, K. M. (1963). Observations on some Australian forest insects. 15. Some mortality factors of Phoracantha semipunctata (F.) (Coleoptera: Cerambycidae).—Proc. Linn. Soc. N.S.W. 88, 221–229.Google Scholar
Nicholson, A. J. (1954). An outline of the dynamics of animal populations.—Aust. J. Zool. 2, 9–65.CrossRefGoogle Scholar
Southwood, T. R. E. (1966). Ecological methods with particular reference to the study of insect populations.—391 pp. London, Methuen.Google Scholar
Tooke, F. G. C. (1932). The Phoracantha beetle.—Fmg S. Afr. January 1932, 5 pp. (Reprint no. 5 of Dep. Agric. Un. S. Afr.).Google Scholar