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Ants (Hymenoptera: Formicidae) as egg predators of coconut pests, especially in relation to biological control of the coconut caterpillar, Opisina arenosella Walker (Lepidoptera: Xyloryctidae), in Sri Lanka

Published online by Cambridge University Press:  10 July 2009

M. J. Way ,
M. E. Cammell ,
B. Bolton  and
P. Kanagaratnam
M. J. Way
Affiliation:
Imperial College, Silwood Park, Ascot, Berks., UK
M. E. Cammell
Affiliation:
Imperial College, Silwood Park, Ascot, Berks., UK
B. Bolton
Affiliation:
Department of Entomology, British Museum (Natural History), Cromwell Road, London, SW7 5BD, UK
P. Kanagaratnam
Affiliation:
Crop Protection Division, Coconut Research Institute, Lunuwila, Sri Lanka
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Abstract

A study was made of ants in Sri Lankan coconut plantations, especially of species foraging and nesting in palm crowns. At least 11 species were found nesting in the spadices, and a special study was made of interactions between some likely to be insect egg predators or to interfere with predation. Oecophylla smaragdina (F.) and Paratrechina longicornis (Latreille) were mutually exclusive, but some non-dominant species such as Monomorium spp. commonly nested and foraged in palms occupied by large populations of dominants such as O. smaragdina and Crematogaster sp. Eggs of the coconut pest Opisina arenosella Walker (and of Corcyra cephalonica (Stainton), which were used to simulate the former on palm fronds) were rapidly found and removed by certain ant species, notably M. floricola (Jerdan) and Crematogaster sp. Oecophylla smaragdina and P. longicornis seemed erratic as egg predators. Surveys of ants in areas where Opisina arenosella does, and does not, develop to outbreak populations showed that Monomorium spp. in particular were notably more common in the non-outbreak areas. However, other ants, notably Technomyrmex albipes (F. Smith), were sometimes common in outbreak areas and were seemingly good egg predators. The presence of thriving Oecophylla smaragdina colonies on currently attacked palms shows that this otherwise well-recognized predator has little or no effect on Opisina arenosella. It is concluded that several species of ants which nest in coconut palm crowns probably contribute importantly to the mortality of eggs of O. arenosella and help keep it in its rare endemic state in most places most of the time, even in outbreak areas.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 79 , Issue 2 , June 1989 , pp. 219 - 234
Copyright
Copyright © Cambridge University Press 1989

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References

Bolton, B. (1986). Apterous females and shift of dispersal strategy in the Monomorium salomonis group (Hymenoptera: Formicidae).—Jnl nat. Hist. 20, 267–272.CrossRefGoogle Scholar
Brown, E. S. (1959). Immature nutfall of coconuts in the Solomon Islands. I.—Distribution of nutfall in relation to that of Amblypelta and of certain species of ants.—Bull. ent. Res. 50, 97–133.CrossRefGoogle Scholar
Cock, M. J. W. & Perera, P. A. C. R. (1987). Biological control of Opisina arenosella Walker (Lepidoptera, Oecophoridae).—Biocontrol News and Inf. 8, 283–310.Google Scholar
Greenslade, P. J. M. (1971). Interspecific competition and frequency changes among ants in Solomon Islands coconut plantations.—J. appl. Ecol. 8, 323–352.CrossRefGoogle Scholar
Hoffmann, J. H. (1980). Release of Tucumania tapiacola (Lepidoptera: Pyralidae) in South Africa against Opuntia aurantiaca: the value of detailed monitoring.—pp. 367–373in Del Fosse, E. S. (Ed.). Proceedings of the Fifth International Symposium on Biological Control of Weeds July 1980.—649 pp. Melbourne, Commonw. Scient. Ind. Res. Org.Google Scholar
Leston, D. (1973). The ant mosaic-tropical tree crops and the limiting of pests and diseases.—Pest Artic. & News Summ. 19, 311–341.Google Scholar
Majer, J. D. (1972). The ant mosaic in Ghana cocoa farms.—Bull. ent. Res. 62, 151–160.CrossRefGoogle Scholar
Majer, J. D. (1976). The influence of ants and ant manipulation on the cocoa farm fauna.—J. appl. Ecol. 13, 157–175.CrossRefGoogle Scholar
Majer, J. D. (1982). Ant manipulation in agro- and forest-ecosystems.—pp. 90–97in Breed, M. D., Michener, C. D. & Evans, H. E. (Eds). The biology of social insects.—419 pp. Boulder, Colorado, Westview Press.Google Scholar
Majer, J. D. (1986). Utilising economically beneficial ants.—pp. 314–331in Vinson, S. B. (Ed.). Economic impact and control of social insects.—421 pp. New York, Praeger.Google Scholar
Perera, P. A. C. R. (1987). Studies on Opisina arenosella Walker and its natural enemies in Sri Lanka.—399 pp. Ph.D. thesis, Univ. London.Google Scholar
Perera, P. A. C. R., Hassell, M. P. & Godfray, H. C. J. (1988). Population dynamics of the coconut caterpillar, Opisina arenosella Walker (Lepidoptera: Xyloryctidae), in Sri Lanka.—Bull. ent. Res. 78, 479–492.CrossRefGoogle Scholar
Phillips, J. S. (1940). Immature nutfall of coconuts in the Solomon Islands.—Bull. ent. Res. 31, 295–316.CrossRefGoogle Scholar
Robertson, H. C. E. (1988). Spatial and temporal patterns of predation by ants in eggs of Cactoblastis cactorum.—Ecol. Entomol. 13, 207–214.CrossRefGoogle Scholar
Van Der Goot, P. (1917). De zwarte cacao-mier (Dolichoderus bituberculatus Mayr) en haar beteekenis voor de cacao-cultuur op Java.—Meded. Proefstn Mid. Java no. 25, 142 pp.Google Scholar
Way, M. J. (1954). Studies of the life history and ecology of the ant Oecophylla longinoda Latreille.—Bull. ent. Res. 45, 93–112.CrossRefGoogle Scholar
Way, M. J. & Khoo, K. C. (in press). Relationships between Helopeltis theobromae and ants with special reference to Malaysian cocoa smallholdings.—J. Pl. Prot. Tropics.Google Scholar
Wood, B. J. (1971). Development of integrated control programs for pests of tropical perennial crops in Malaysia.—pp. 422–457 in Huffaker, C. B. (Ed.). Biological control.—511 pp. New York, Plenum.Google Scholar