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Colony dispersion and nesting habits of the ants, Dolichoderus thoracicus and Oecophylla smaragdina (Hymenoptera: Formicidae), in relation to their success as biological control agents on cocoa

Published online by Cambridge University Press:  10 July 2009

M. J. Way*
Affiliation:
Imperial College of Science, Technology and Medicine, Silwood Park, UK
K. C. Khoo
Affiliation:
Universiti Pertanian Malaysia, Selangor, Malaysia
*
Imperial College of Science, Technology and Medicine, Silwood Park, Ascot, Berks., SL5 7PY, UK.

Abstract

In mixed cocoa-coconut palm plantations in Malaysia the palm spadices provide large, stable nesting sites for Dolichoderus thoracicus (Smith) in contrast to impermanent sites on cocoa and on the ground. D. thoracicus and the arboreal leaf-nesting Oecophylla smaragdina (Fabricius) both benefit from the mixed system which also provides a more stable food supply from honeydew-producing Homoptera. A scoring method showed that about 50–200 O. smaragdina or 200–2000 D. thoracicus on a cocoa tree can protect it effectively from Helopeltis theobromae Miller (Hemiptera: Miridae). The relatively greater efficiency of O. smaragdina as a biological control agent is associated with its actively dispersive predatory behaviour in contrast to the localized concentration of D. thoracicus workers at sites such as cocoa pods where it tends honeydew-producing Homoptera, and where it acts largely by deterring H. theobromae. Despite its biological control potential, the painfully biting O. smaragdina, unlike D. thoracicus, is normally considered unacceptable to plantation staff. Nevertheless it should be recognized as valuable in integrated pest management of cocoa pests especially where D. thoracicus is difficult to establish.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 1991

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References

Chin, P.K., Sipat, A.B. & Khoo, K.C. (1988) Studies on the predator-prey relationship between Oecophylla smaragdina and Helopeltis theobromae using the radiotracer technique. pp. 427435in, Proceedings of an International Symposium on Modern Insect Control: Nuclear Techniques and Biotechnology. Vienna, International Atomic Energy Agency.Google Scholar
Fataye, A. & de Taffin, G. (1989) Lutte intégrée contre Pseudotheraptus devastans et espèces voisines. Oléagineux 44, 525530.Google Scholar
Giesberger, G. (1983) Biological control of the Helopeltis pest of cocoa in Java pp. 91180in, Toxopeus, H. & Wessel, P.C. (Eds) Cocoa research in Indonesia 1900–1950, 2. Wageningen, American Cocoa Research Institute & International Office of Cocoa and Chocolate.Google Scholar
Huang, H.T. & Pei, Yang (1987) The ancient cultured citrus ant. Biosciences 37, 665671.CrossRefGoogle Scholar
Julia, J.F. (1978) La punaise de cocotier: Pseudotheraptus sp.II – Méthode de lutte intégrée en Côte d'Ivoire. Oléagineux 33, 113118.Google Scholar
Khoo, K.C. & Chung, G.F. (1989) Use of the black cocoa ant to control mirid damage in cocoa. The Planter, Kuala Lumpur 65, 370383.Google Scholar
Leston, D. (1973) The ant mosaic - tropical tree crops and the limiting of pests and diseases. Pesticide Abstracts and News Summary 19, 311340.Google Scholar
Majer, J.D. (1986) Utilising economically beneficial ants. pp. 314331in Vinson, S.B. (Ed.) Economic impact and control of social insects. New York, Praeger.Google Scholar
Phillips, J.S. (1956) Immature nutfall of coconuts in the British Solomon Islands Protectorate. Bulletin of Entomological Research 47, 575579.CrossRefGoogle Scholar
Room, P.M. (1971) The relative distribution of ant species in Ghana's cocoa farms. Journal of Animal Ecology 40, 735751.CrossRefGoogle Scholar
Stapley, J.H. (1973) Insect pests of coconuts in the Pacific Region. Outlook on Agriculture 7, 211217.CrossRefGoogle Scholar
van der Goot, P. (1917) De Zwarte cacao-mier (Dolichoderus bituberculatus Mayr) en haar beteenkenis veer de cacao-cultuur op Java. (The black cocoa ant, Dolichoderus bituberculatus Mayr, and its importance for the cocoa culture on Java.) Mededelingen van het Proefstation 25, 142 pp.Google Scholar
Vanderplank, F.L. (1960) Studies on the coconut pest Pseudotheraptus wayi Brown (Coreidae) in Zanzibar. III - A selective residual insecticidal formulation and its effects on the ecology of the insect. Bulletin of Entomological Research 50, 151164.CrossRefGoogle Scholar
Way, M.J. (1953) The relationship between certain ant species with particular reference to biological control of the coreid, Theraptus sp. Bulletin of Entomological Research 44, 669691.CrossRefGoogle Scholar
Way, M.J. (1954) Studies on the life history and ecology of the ant Oecophylla longinoda Latreille. Bulletin of Entomological Research 45, 93112.CrossRefGoogle Scholar
Way, M.J. (1963) Mutualism between ants and honeydew-producing Homoptera. Annual Review of Entomology 8, 307344.CrossRefGoogle Scholar
Way, M.J. & Khoo, K.C. (1989) Relationships between Helopeltis theobromae damage and ants with special reference to Malaysian cocoa smallholdings. Journal of Plant Protection in the Tropics 6, 111.Google Scholar