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A laboratory study of competition between Tribolium castaneum (Hbst.) (Coleoptera, Tenebrionidae) and three moth species

Published online by Cambridge University Press:  10 July 2009

S. A. O. Adeyemi
S. A. O. Adeyemi
Affiliation:
Imparial College Field Station, Sunninghill, Berks
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Extract

Laboratory studies were undertaken to find out if the increased degree of infestation by certain moth species, Cadra cautella (Wlk.), plodia interpunctella (Hb.) and Corcyra cephalonica (Stnt.) following the chemical control of beetles including Tribolium castaneum (Hbst.) in stacks of groundnut (Arachis) in Nigeria could be due to relaxation of inter-specific competition.

All test insects were reared and studied at a constant temperature of 25.5°C. and 70 per cent. ralative humidity. All experiments were conducted on shelled nuts (or germs of nuts) in specimen tubes, crystallising dishes or jam jars. The survival and development of the immature stages of the moth species was studied and the numbers of eggs laid by the adults recorded in the presence of adults of T. castaneum; the reciprocal effects of moth larvae on T. castaneum were also briefly studied.

The most important harmful effects of T. castaneum were on copulating moths and on moth eggs. Adults were frequently disturbed and sometimes killed or, if they survived, laid fewer eggs; eggs were also eaten, especially those laid loose in the medium. Adults of T. castaneum also attacked and killed moth larvae and pupae, but this was considered to be of minor importance. The silk produced by moth larvae was inimical to larvae of T. castaneum, but the effect on the population of T. castaneum was probably offset by the beneficial effect of moth cocoons, which provide shelter for larvae of T. castaneum from cannibalism.

It is conculaded that as a result of competition for food and/or space between T. castaneum and the moth species the moth populations are likely to be exterminated despite their apparently higher intrisic rate of increase.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 58 , Issue 1 , September 1968 , pp. 31 - 45
Copyright
Copyright © Cambridge University Press 1968

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References

Birch, L. C. (1948). The intrinsic rate of natural increase of an insect population.—J. Anim. Ecol. 17 pp. 15–26.CrossRefGoogle Scholar
Birch, L. C. (1954). Experiments on the relative abundance of two sibling species of grain weevils.—Aust. J. Zool. 2 pp. 66–74.CrossRefGoogle Scholar
Cancela da Fonseca, J. P. (1965). Oviposition and length of adult life in Caryedon gonagra (F.) (Col., Bruchidae).—Bull. ent. Res. 55 pp. 697–707.CrossRefGoogle Scholar
Crombie, A. C. (1944). The effect of crowding upon the natality of grain-infesting insects.—Proc. zool. Soc. Lond. (A). 133 pp. 77–98.CrossRefGoogle Scholar
Hayward, L. A. W. & Cutler, J.R. [1958]. New routine spraying programme.—Res. W. Afr. stored Prod. Res. Un. 1957 pp. 23–24.Google Scholar
Howe, R. W. (1953). The rapid determination of the intrinsic rate of increase of an insect population.—Ann. app. Biol. 40 pp. 134–151.CrossRefGoogle Scholar
Howe, R. W. (1962). The effects of temperature and humidity on the oviposition rate of Tribolium castaneum (Hbst.) (Coleoptera, Tenebrionidae).—Bull. ent. Res. 53 pp. 301–310.CrossRefGoogle Scholar
Howe, R. W., & Hayward, L. A. W. & Cotterell, G.S. (1952). Control measures in 1948–50 against insects attacking groundnuts stored at Kano, Northern Nigeria.—Bull. ent. Res. 43 pp. 259–279.CrossRefGoogle Scholar
Lefkovitch, L. P. (1963). Changes in populations of groundnut pests and their parasites in N. Nigeria.—Pest Infest. Res. 1962 p. 4.Google Scholar
Milne, A. (1961). Definition of competition among animals.—Symp. Soc. exp. Biol. no. 15 pp. 40–61.Google Scholar
Park, T. (1957). Experimental studies of interspecies competition. III. Relation of initial species proportion to competitive outcome in populations of Tribolium.—Physiol. Zoöl. 30 pp. 22–40.CrossRefGoogle Scholar
Prevett, P. F. (1964). The distribution of insects in stacks of bagged groundnuts in Northern Nigeria.—Bull. ent. Res. 54 pp. 689–713.CrossRefGoogle Scholar
Prevett, P. F. & others (1961). A study of populations of Tribolium spp. and moth in groundnut pyramids at Kano.—Rep. W. Afr. stored Prod. Res. Un. 1960 pp. 31–34.Google Scholar
Roth, L. M. (1943). Studies on the gaseous secretion of Tribolium confusum Duval. II. The odoriferous glands of Tribolium confusum.—Ann. ent. Soc. Am. 36. pp. 397–424.CrossRefGoogle Scholar
Sonleitner, F. J. (1961). Factors affecting egg cannibalism and fecundity in populations of adult Tribolium castaneum Herbst.—Physiol. Zoöl. 34 pp. 233–255.CrossRefGoogle Scholar
Trehan, K. N. & Rajarao, S. A. (1945). A note on the predatory habits of Tribolium beetles.—Curr. Sci. 14 pp. 209–210.Google Scholar