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Larval movements of Chilo partellus (Lepidoptera: Pyralidae) within and between plants: timing, density responses and survival

Published online by Cambridge University Press:  10 July 2009

Amelie Berger
Amelie Berger*
Affiliation:
Department of Plant and Forest Protection, Swedish University of Agricultural Sciences, Uppsala, Sweden
*
Amelie Berger, Department of Plant and Forest Protection, Swedish University of Agricultural Sciences, PO Box 7044, S-75007 Uppsala, Sweden
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Abstract

Four dispersal phases occur during larval development of Chilo partellus (Swinehoe) on young host plants, phase 1, ballooning of newly hatched larvae when moving from egg batch to plant whorl, phase 2, ballooning of first and second instars which leave the plant whorl in the week after egg eclosion, phase 3, walking prior to stem penetration, and phase 4, walking after stem penetration. In laboratory experiments larval dispersal was density dependent during dispersal phases 1, 3 and 4 and there were clear differences between maize and sorghum in the percentage of migrating lavae and time of migration. Maize plants accommodated many more pupae than sorghum plants which suggests that the distribution of older larvae in the field can be more clumped in maize than in sorghum. Pupal weight descreased with infestation level on sorghum but seemed less affected on maize. Resistance to starvation in four combinations of temperature and relative humidity increased with age. All hatchlings survived six hours′ starvation but with considerably reduced crawling capacity. Seven- and 15-day old larvae were descreasingly affected. Older larvae survived and maintained their mobility after 48 hours. Successful dispersal will depend on host-plant, egg load, and costs of migration; these costs will change with larval age.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 82 , Issue 4 , December 1992 , pp. 441 - 448
Copyright
Copyright © Cambridge University Press 1992

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References

Ampofo, J.K.O. & Kidiavai, E.L. (1987) Chilo partellus (Swinhoe) (Lep.: Pyralidae) larval movement and growth on maize plants in relation to plant age and resistance or susceptibility. Journal of Applied Entomology 103, 483–488.CrossRefGoogle Scholar
Berger, A. (1981) Relatório anual 1980/1981. Controle biológico da broca ponteada Chilo partellus Swinhoe no milho com a bacteria Bacillus thuringiensis. Estudo do dinámico da população da prage e avaliação dos prejuizos por ela causados. FAO/MOZ/75/009. Instituto Nacional de Invesitigação Agronómica, Maputo, Moçambique.Google Scholar
Berger, A. (1989a) Ballooning activity of Chilo partellus larvae in relation to size of mother, egg batches, eggs and larvae and age of mother. Entomologia Experimentalis et Applicata 50, 125–132.CrossRefGoogle Scholar
Berger, A. (1989b) Egg weight, batch size and fecundity of the spotted stalk borer Chilo partellus in relation to weight of females and time of oviposition. Entomologia Experimentalis et Applicata 50, 199–207.CrossRefGoogle Scholar
Bernays, E.A., Chapman, R.F. & Woodhead, S. (1983) Behaviuor of newly hatched larvae of Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) associated with their establishment in the host-plant, sorghum. Bulletin of Entomological Research 73, 75–83.CrossRefGoogle Scholar
Bernays, E.A., Woodhead, S. & Haines, L. (1985) Climbing by newly hatched larvae of the spotted stalk borer Chilo partellus to the top of sorghum plants. Entomologia Experimentalis et Applicata 39, 73–79.CrossRefGoogle Scholar
Chapman, R.F., Woodhead, S. & Bernays, E.A. (1983) Survival and dispersal of young larvae of Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) in two cultivars of sorghum. Bulletin of Entomological Research 73, 65–74.CrossRefGoogle Scholar
Davis, P.M. & Pedigo, L.P. (1989) Analysis of the spatial patterns and sequential count plants for stalk borer (Lepidoptera: Noctuidae). Environmental Entomology 18, 504–509.CrossRefGoogle Scholar
Hassel, M. (1978) The dynamics of arthropod predator-prey systems. Monographs in population biology no 13, 237 pp. Princeton, Princeton University Press.Google Scholar
Hunter, M.D. (1990) Differential susceptibility to variable plant phenology and its role in competition between two insect herbivores on oak. Ecological Entomology 15, 401–408.CrossRefGoogle Scholar
Lasack, P.M. & Pedigo, L.P. (1986) Movement of stalk borer larvae (Lepidoptera: Noctuidae) from noncrop areas into corn. Journal of Economic Entomology 79, 1697–1702.CrossRefGoogle Scholar
Lawrence, W.S. (1990) The effects of group size and host species on development and survivorship of gregarious caterpillar Halisidota caryae (Lepidoptera: Arctiidae). Ecological Entomology 15, 53–62.CrossRefGoogle Scholar
Leuschner, K. (1989) A review of sorghum stem borer screening procedures. pp. 129–135 in International workshop on sorghum stem borers. International Crops Research Institute for the Semi-Arid Tropics, ICRISAT, Patancheru, India (17–20 11, 1987).Google Scholar
Litsinger, J.A., Hasse, V., Barrion, A.T. & Schmutterer, H. (1991) Response of Ostrinia furnacalis (Guenée) (Lepidoptera: Pyralidae) to intercropping. Environmental Entomology 20, 988–1004.CrossRefGoogle Scholar
Mohyuddin, A.I. (1981) Comparative biology and ecology of Apanteles flaviopes (Cam.) and A. sesamiae Cam. as parasites of graminaceous borers. Bulletin of Entomological Research 61, 33–39.CrossRefGoogle Scholar
Päts, P. & Ekbom, B. (in press). Infestation and Dispersal of Early Instars of Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae) at Different Densities. Environmental Entomology.Google Scholar
Saxena, K.N. (1990) Mechanisms of resistance / susceptibility of certain sorghum cultivars to the stem borer Chilo partellus: role of behaviour and development. Entomologia Experimentalis et Applicata 55, 91–99.CrossRefGoogle Scholar
Seshu Reddy, K.V. & Davies, J.C. (1978) A new medium for mass rearing of the sorghum stem borer, Chilo partellus Swinhoe (Lepidoptera: Pyralidae) and its use in resistance screening. Indian Journal of Plant Protection 6 (1), 48–55.Google Scholar
Shelton, A.M., Nyrop, J.P., Seaman, A. & Foster, R.E. (1986) Distribution of European corn borer (Lepidoptera: Pyralidae) egg masses and larvae on sweet corn in New York. Environmental Entomology 15, 501–506.CrossRefGoogle Scholar
Van Hamburg, H. (1980) The grain-sorghum stalk-borer, Chilo partellus (Swinhoe) (Lepidoptera: Pyralidae): survival and location of larvae at different infestation levels in plants of different ages. Journal of the Entomological Society of Southern Africa 43, 71–76.Google Scholar
Van Hamburg, H. & Hassell, M.P. (1984) Density dependence and the augmentive release of egg parasitoids against graminaceous stalkborers. Ecological Entomology 9, 101–108.CrossRefGoogle Scholar
Weseloh, R.M. (1990) Simulation of litter residence times of gypsy moth larvae and implications for predation by ants. Entomologia Experimentalis et Applicata 57, 215–221.CrossRefGoogle Scholar
Woodhead, S. & Taneja, S.L. (1987) The importance of the behaviour of young larvae in sorghum resistance to Chilo partellus. Entomologia Experimentalis et Applicata 45, 47–54.CrossRefGoogle Scholar