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Zum saisonalen Auftreten der Baumwolleule,Spodoptera littoralis (Boisd.) (Lep., Noctuidae) und ihrer Kernpolyedrose (NPV) in verschiedenen Distrikten Ägyptens

Seasonal abundance of the Cotton Leafworm,Spodoptera littoralis (boisd.) and the natural incidence of a polyhedrosis virus in different governorates of Egypt

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Abstract

Infection rates of the nuclear polyhedrosis virus (NPV) in the cotton leafworm,Spodoptera littoralis larvae were assessed from 1985 through 1986 in clover fields at El-Behiera, El-Fayoum and El-Gharbia governorates. Infection rates of the pathogen were highest near the end of spring when the cotton leafworm larval populations were increasing. For the different governorates, the percentages of virus infection were almost higher in 1985-season than in 1986. El-Fayoum-larval population was the most infected by NPV followed by El-Gharbia and El-Behiera-populations, respectively. There was a positive correlation between infection rates of NPV on one hand, and density of larva and ambient temperature on the other.

Zusammenfassung

Vergleichende Untersuchungen über die Infektionsrate der Kernpolyedrose (NPV) bei den Larven der Baumwolleule,Spodoptera littoralis 1985 und 1986 in Kleefeldern der ägyptischen Distrikte El-Behiera, El-Fayoum und El-Gharbia zeigten, daß die Infektion proportional mit der Larvendichte anstieg. Sie war 1985 höher als 1986 und erreichte ihr Maximum mit 26,7% (aus 4 Untersuchungswerten im April und Mai) in El-Fayoum. Mit der mittleren Temperatur war sie positiv, mit der mittleren rel. Luftfeuchte negativ korreliert.

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Literaturverzeichnis References

  • Abul-Nasr, S., 1956: Polyhedrosis virus disease on cotton leafworm,Prodenia litura (F.). Bull. ent. Soc. Egypt40, 321–332.

    Google Scholar 

  • Abul-Nasr, S., 1959: Field tests on the use of polyhedrosis virus disease for the control of the cotton leafworm,Prodenia litura (F.). Bull. ent. Soc. Egypt43, 231–243.

    Google Scholar 

  • Abul-Nasr, S.;Naguib, M. A., 1968: The population density of larvae and pupae ofSpodoptera littoralis (Boisd.) in clover fields in Egypt. Bull. ent. Soc. Egypt52, 297–312.

    Google Scholar 

  • El-Nagar, S.;Abul-Nasr, S., 1980: The susceptibility of the cotton leafworm,Spodoptera littoralis (Boisd.) to different isolates of nuclear polyhedrosis virus. Z. ang. Ent.90, 289–292.

    Google Scholar 

  • Harrap, K. A.;Payne, C. C.;Roberson, R., 1977: The properties of three bauculoviruses from closely related hosts. J. Virology79, 14–31.

    Google Scholar 

  • Jaques, R. P., 1971: Tests on protectants for foliar deposits of a polyhedrosis virus. J. Insect. Pathol.17, 9–16.

    Google Scholar 

  • Klein, M.;Podler, H., 1978: Studies on the application of a nuclear polyhedrosis virus to control population of the Egyptian cotton worm,Spodoptera littoralis. J. Invert. Pathol.32, 244–248.

    Google Scholar 

  • Moawad, G. M.;Topper, C. P.;El-Husseini, M. M.;Kamel, A. M., 1985: Seasonal abundance of parasites and predators ofSpodoptera littoralis (Boisd.) in clover fields in Egypt. Agric. Res. Rev. Cairo63, 45–54.

    Google Scholar 

  • Shorey, H. H.;Hale, R. L., 1965: Mass rearing of the larvae of nine Noctuid species on a simple artificial medium. J. Econ. Entomol.58, 522–524.

    Google Scholar 

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Authors and Affiliations

  1. Department of Plant Protection, Al-Azbar University, Nasr City, Cairo, Egypt

    M. A. Ali & A. S. El-Khouly

  2. Institute of Plant Protection, ARC, Dokki, Cairo, Egypt

    G. M. Moawad & M. G. M. Ragab

Authors
  1. M. A. Ali
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  2. A. S. El-Khouly
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  3. G. M. Moawad
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  4. M. G. M. Ragab
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Ali, M.A., El-Khouly, A.S., Moawad, G.M. et al. Zum saisonalen Auftreten der Baumwolleule,Spodoptera littoralis (Boisd.) (Lep., Noctuidae) und ihrer Kernpolyedrose (NPV) in verschiedenen Distrikten Ägyptens. Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 65, 51–54 (1992). https://doi.org/10.1007/BF01905829

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  • DOI: https://doi.org/10.1007/BF01905829

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