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Life tables for sunn pest, Eurygaster integriceps (Heteroptera: Scutelleridae) in northern Iran

Published online by Cambridge University Press:  23 June 2010

S. Iranipour
Affiliation:
Department of Plant Protection, Faculty of Agriculture, University of Tabriz, Tabriz, 51666-14888Iran
A. Kharrazi Pakdel
Affiliation:
Department of Plant Protection, Faculty of Agriculture, University of Tehran, Karaj, Iran
G. Radjabi
Affiliation:
Plant Pests and Diseases Research Institute, PO Box 1454-19395Tehran, Iran
J.P. Michaud*
Affiliation:
Kansas State University, Agricultural Research Center-Hays, 1232 240th Ave, Hays, Kansas 67601, USA
*
*Author for correspondence Fax: 785-623-4369 E-mail: [email protected]

Abstract

Life table studies of sunn pest were carried out in Varamin, Iran, from 1998–2001 in order to determine stage-specific mortalities and the impact of specific natural enemies on population dynamics. Populations were sampled 2–3 times weekly in agricultural fields during the growing season and monthly during the period of dormancy at resting sites in nearby mountains some 30 km away from cereal fields. Adults spend a period of 9–10 months in diapause and suffered overcompensatory, density-dependent mortality during this period. Variation in adult overwintering survival was inferred to be largely a function of the physiological condition of bugs that is reduced in a density-dependent manner by intraspecific competition for food among newly molted adults prior to migration to resting sites. Adult mortality emerged as the primary factor in key factor analysis, contributing 73% of the total variance in mortality. Other important factors were egg parasitism by Trissolcus vassilievi Mayr and adult parasitism by several species of Tachinidae. Although T. vassilievi made only a minor contribution to overall variance in total mortality, it had a significant effect on the number of newly molted adults, the life stage that is most damaging to cereal crops. The equilibrium level of the pest population in wheat fields was inferred to be ca. 72.6 adults m−2, a number that substantially exceeds the economic threshold that ranges from 3–5 adults m−2.

Type
Research Paper
Copyright
Copyright © Cambridge University Press 2010

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References

Afshar, J. (1933) Development, Life Cycle and Ecology of Sunn-Pest Eurygaster integriceps Put. in Iran. Tehran, Iran, Ferdowsi Publishers.Google Scholar
Alexandrev, N. (1947a) Eurygaster integriceps Put. a Varamine et ses parasites. Entomologie et Phytopathologie Appliquees 5, 1114.Google Scholar
Alexandrev, N. (1947b) Eurygaster integriceps Put. a Varamine et ses parasites. Entomologie et Phytopathologie Appliquees 6 and 7, 8–17.Google Scholar
Amir-Maafi, M. (1991) An investigation for identifying the efficiency of parasitoid flies of cereal sunn pest (Eurygaster integriceps Put.) in Karaj, Iran. MSc thesis, University of Tehran, Iran.Google Scholar
Amir-Maafi, M. (2000) An investigation on the host-parasitoid system between Trissolcus grandis Thomson (Hym.: Scelionidae) and sunn pest eggs. PhD thesis, University of Tehran, Iran.Google Scholar
Amir-Maafi, M. & Parker, B.L. (2002) Density dependence of Trissolcus spp. (Hymenoptera: Scelionidae) on eggs of Eurygaster integriceps Puton (Hemiptera: Scutelleridae). Arab Journal of Plant Protection 20, 6264.Google Scholar
Amir-Maafi, M. & Parker, B.L. (2003) Efficiency of Trissolcus spp. (Hymenoptera: Scelionidae) as egg parasitoids of Eurygaster integriceps Puton (Hemiptera: Scutelleridae) in Iran. Arab Journal of Plant Protection 21, 6972.Google Scholar
Amir-Maafi, M., Kharrazi Pakdel, A., Sahragard, A. & Rasoulian, G. (2002) Efficiency and regulation mechanisms of sunn pest population, Eurygaster integriceps Put. (Het. Scutelleridae), by egg parasitoids in Varamin. Journal of Entomological Society of Iran 22, 2947.Google Scholar
Banita, E., Popov, C. & Luca, E. (1994) Study of the main ecological factors controlling the population of Eurygaster integriceps Put. in the central zone of Oltenia. Probleme de Protectia Plantelor 22, 245259.Google Scholar
Bellows, T.S. Jr,, van Driesch, R.G. & Elkinton, J.S. (1992) Life-table construction and analysis in the evaluation of natural enemies. Annual Review of Entomology 37, 587614.CrossRefGoogle Scholar
Bernal, J. & Gonzalez, D. (1993) Experimental assessment of degree-day model for predicting the development of parasites in the field. Journal of Applied Entomology 116, 456466.CrossRefGoogle Scholar
Carey, J.R. (1993) Applied Demography for Biologists with Special Emphasis on Insects. Oxford, UK, Oxford University Press.CrossRefGoogle Scholar
Critchley, B.R. (1998) Literature review of sunn pest, Eurygaster integriceps Put. (Hemiptera, Scutelleridae). Crop Protection 17, 271287.CrossRefGoogle Scholar
Davatchi, A. (1954) Insect Pests of Iran: Grasshoppers and Other Cereal Insect Pests. Tehran, Iran, University of Tehran Publication.Google Scholar
Dent, D.R. (1997) Quantifying insect populations: estimates and parameters. pp. 57–109 in Dent, D.R. & Walton, M.P. (Eds) Methods in Ecological and Agricultural Entomology. Wallingford, UK, CAB International.CrossRefGoogle Scholar
Doroninia, G.M. & Makarova, L.A. (1976) Geographical characteristics of the population dynamics of a noxious pentatomid and their simulation by models. Trudy Vsesoyuznogo Nauchno issledovatel' skogo Instituta Zashchity Rastenii 50, 76–102.Google Scholar
Ebadi, R. & Jozeyan, A. (2000) A study of the biology of parasitoid fly, Phasia subcoleopterata L. (Dipt., Tachinidae), of sunn pest in Isfahan. p. 7 in Proceeding of the 14th Iranian Plant Protection Congress, vol. 1, Pests. 5–8 September 2000, Isfahan University of Technology, Isfahan, Iran.Google Scholar
Elkinton, J.S., Buonaccorsi, J.P. & Bellows, T.S. Jr, (1992) Marginal attack rate, k-values and density dependence in the analysis of contemporaneous mortality factors. Researches on Population Ecology 34, 2944.CrossRefGoogle Scholar
Farid, A. (1984) Preliminary investigations on sunn pest (Eurygaster integriceps Put.) in Jiroft. Bulletin of Plant Protection Organization 30, 7486.Google Scholar
Ghadiri, V. & Heydari, M. (1989) Some preliminary studies on sunn pest (Eurygaster integriceps Put.) in Bakhtaran province. Applied Entomology and Phytopathology 56, 2324.Google Scholar
Gordeev, A. (1998) The situation is under control. Zashchita i Karantin Rastenii 2, 11.Google Scholar
Heydari, M. (1986) Investigation on the variation on population density of Eurygaster integriceps in highlands during summer and winter times. p. 26 in Proceeding of the 8th Iranian Plant Protection Congress, 30 August–4 September 1986, Isfahan, Iran.Google Scholar
Iranipour, S. (2008) Relationship between fecundity, weight and body dimensions in Eurygaster integriceps Puton (Hem., Scutelleridae). p. 454 in Proceedings of the 18th Iranian Plant Protection Congress, vol. 1, Pests. 24–27 August 2008, University of Bu Ali Sina, Hamadan, Iran.Google Scholar
Iranipour, S. Effect of temperature on fecundity and longevity of adults of sunn-pest Eurygaster integriceps Put. (Het. Scutelleridae). Agricultural Research, Water, Soil & Plant in Agriculture, in press.Google Scholar
Iranipour, S., Kharrazi Pakdel, A., Radjabi, G., Rasoulian, G. & Karim Modjeni, H. (2003) Age specific mortality and temperature-dependent development of immature stages of sunn pest (Eurygaster integriceps Put.) (Heteroptera: Scutelleridae) in four constant temperatures. Applied Entomology and Phytopathology 70, 16.Google Scholar
Iranipour, S., Kharrazi Pakdel, A. & Radjabi, G. Life history parameters of Eurygaster integriceps (Het., Scutelleridae) held at four constant temperatures. Journal of Insect Science, in press.Google Scholar
Javahery, M. (1978) Economical importance of sunn pests (Eurygaster and Aelia spp.) and their control in Iran. Plant Protection 27, 49.Google Scholar
Jozeyan, A. & Ebadi, R. (2000) A study of efficiency of parasitoid flies of sunn pest Phasia sp. (Diptera,: Tachinidae) and effects of chemical control of sunn pest on its prevalent parasitoid species in Isfahan. p. 222 in Proceeding of the 14th Iranian Plant Protection Congress, vol. 1, Pests. 5–8 September 2000, Isfahan University of Technology, Isfahan, Iran.Google Scholar
Kartavtsev, N.I. (1974) Studying the role of naturally occurring Telenomines. Zashchita Rastenii 4, 31.Google Scholar
Khalaf, J. & Shadai, M. (1990) Sunn pest (Eurygaster integriceps Put.) in Fars province. Applied Entomology and Phytopathology 57, 9–10.Google Scholar
Manly, B.F.J. (1977) The determination of key factors from life table data. Oecologia 31, 111117.CrossRefGoogle ScholarPubMed
Manly, B.F.J. (1979) A note on key factor analysis. Researches on Population Ecology 21, 3039.CrossRefGoogle Scholar
Manly, B.F.J. (1990) Stage-Structured Populations, Sampling, Analysis and Simulation. London, UK, Chapman and Hall.Google Scholar
Marashi, E. (1988) An investigation in sunn pest situation in Markazy province conditions. Bulletin of Plant Protection Organization 31, 91–111.Google Scholar
Mardoukhi, V. & Heydari, M. (1993) Study on variations of population density and damage of sunn pest (Eurygaster integriceps Put.) in dry rain-fed area of Kurdestan. Applied Entomology and Phytopathology 60, 78.Google Scholar
Martin, H.E., Javahery, M. & Radjabi, G. (1969) Note sur la Punaise des cereales Eurygaster integriceps Put. et de ses parasites du genre Asolcus en Iran. Entomologie et Phytopathologie Appliquees 28, 3846.Google Scholar
Modarres Avval, M. (1992) Biology and ecology of sunn-pest (Eurygaster integriceps) and study on reasons of its outbreaks in Trakya region (European part of Turkey). pp. 5170 in The 1st Technical Conference on Cereal Sunn Pest (Eurygaster integriceps Put.), 23–27 May 1992, College of Agriculture, University of Tehran, Karaj, Iran.Google Scholar
Morris, R.F. (1957) The interpretation of mortality data in studies of population dynamics. Canadian Entomologist 89, 4969.CrossRefGoogle Scholar
Morris, R.F. (1959) Single factor analysis in population dynamics. Ecology 40, 580588.CrossRefGoogle Scholar
Podoler, H. & Rogers, D. (1975) A new method for the identification of key factors from life-table data. Journal of Animal Ecology 44, 85–115.CrossRefGoogle Scholar
Radjabi, G. (1994) Analysis of sunn pest periodic outbreaks in Iran. Applied Entomology and Phytopathology 61, 110.Google Scholar
Radjabi, G. (1995a) Investigations on the various aspects of Hymenopterous egg parasitoids in alleviating the outbreak occurrence of Eurygaster integriceps in Iran. Applied Entomology and Phytopathology 62, 1314.Google Scholar
Radjabi, G. (1995b) Trend of body weight variations of Eurygaster integriceps Put.) in the fields and altitudes. Applied Entomology and Phytopathology 62, 1516.Google Scholar
Radjabi, G. (2000) Ecology of Cereals' Sunn-Pests in Iran. Tehran, Iran, Ministry of Jihad and Agriculture, Agricultural Research, Education and Organization Publication.Google Scholar
Radjabi, G. (2007) Sunn Pest Management Based on Its Outbreaks' Key Factor Analysis in Iran. Tehran, Iran, Ministry of Jihad and Agriculture, Agricultural Research and Education Organization Publication.Google Scholar
Radjabi, G. & Amir Nazari, M. (1989) Egg parasites of sunn pest in the central part of Iranian plateau. Applied Entomology and Phytopathology 56, 112.Google Scholar
Safavi, M. (1973) Etude Bio-Ecologique des Hymenopteres Parasites des Oeufs des Punaises des Cereales en Iran. Tehran, Iran, Institut de Researches Entomologiques et Phytopathologiques Publication.Google Scholar
Salavatian, M. (1991) The Necessity of Studying Ecological and Biological Effective Factors in Controlling Field Crop Pests. Tehran, Iran, Agricultural Extension Organization Publication.Google Scholar
Sibly, R.M. & Smith, R.H. (1998) Identifying key factors using λ contribution analysis. Journal of Animal Ecology 67, 1724.CrossRefGoogle Scholar
Slobodkin, L.B. (1962) Growth and Regulation of Animal Populations. New York, Holt Rinehart and Winston.Google Scholar
Southwood, T.R.E. & Jepson, W.F. (1962) Studies on the populations of Oscinella frit L. (Dipt.: Chloropidae) in the oat crop. Journal of Animal Ecology 31, 481495.CrossRefGoogle Scholar
Southwood, T.R.E. & Henderson, P.A. (2000) Ecological Methods. Blackwell Science, London, UK, Oxford.Google Scholar
Smith, R.H. (1973) The analysis of intra-generation change in animal populations. Journal of Animal Ecology 42, 611622.CrossRefGoogle Scholar
Tafaghodinia, B. (1994) Studies on population dynamics of cereal sunn pest Eurygaster integriceps Put. (Het., Scutelleridae) at Karaj. MSc thesis, University of Tehran, Karaj, Iran.Google Scholar
Tikhomolov, V.I. & Borisov, S.Y. (1998) Factors regulating abundance of the sunn pest in the Saratov region. Zashchita i Karantin Rastenii 2, 1011.Google Scholar
Udovitsa, M.I. (1998) The situation may change. Zashchita i Karantin Rastenii 3, 15.Google Scholar
Varley, G.C. & Gradwell, G.R. (1960) Key factors in population studies. Journal of Animal Ecology 29, 399401.CrossRefGoogle Scholar
Vojdani, S. (1961) Bio-ecology of some Eurygaster species in central California (Pentatomidae-Scutellerinae). Annals of the Entomological Society of America 54, 567578.CrossRefGoogle Scholar
Volodichev, M.A. (1991) The sunn pest. Zashchita-Rastenii 2, 9–12.Google Scholar
Volodichev, M.A. (1996) What about the Eurygaster bug? Zashchita i Karantin Rastenii 4, 1011.Google Scholar
Yamamura, K. (1999) Key-factor/key-stage analysis for life table data. Ecology 80, 533537.CrossRefGoogle Scholar
Young, L.J. & Young, J.H. (1998) Statistical Ecology. Norwell, MA, USA, Kluwer Academic Publishers.CrossRefGoogle Scholar
Zomorrodi, A. (1961) A progress in biological control of sunn-pest. Entomologie et Phytopathologie Appliquees 20, 1623.Google Scholar