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Overwintering and spring emergence of Heliothis armigera (Hübner) (Lepi–doptera: Noctuidae) in the Namoi Valley, New South Wales

Published online by Cambridge University Press:  10 July 2009

A. G. L Wilson ,
T. Lewis  and
R. B. Cunningham
A. G. L Wilson
Affiliation:
CSIRO Cotton Research Unit, P.O. Box 59, Narrabri, New South Wales, 2390, Australia.
T. Lewis
Affiliation:
CSIRO Division of Mathematics and Statistics, P.O. Box 1963, Canberra City, A.C.T., 2601, Australia.
R. B. Cunningham
Affiliation:
CSIRO Division of Mathematics and Statistics, P.O. Box 1965, Canberra City, A.C.T., 2601, Australia.
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Abstract

The overwintering of Heliothis armigera (Hb.) was studied in the Namoi Valley, north-western New South Wales, Australia. In field observations, over 80% of pupae formed during late April and May were found to be in diapause and did not resume development until September. Moth emergence from diapausing pupae occurred in a protracted period between September and November. Laboratory studies indicated the probability of two phases of diapause development, one completed under cool soil conditions of winter and a second requiring a temperature above about 17° C. The threshold of the second phase was higher than that for non-diapausing pupae and was not normally reached until late September. The times to diapause termination in populations of overwintering pupae were satisfactorily fitted to a geometric distribution, which was reflected in the protracted emergence period of moths in field cages. The limited availability of suitable host-plants for the overwintering generation and for emerging moths is discussed.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 69 , Issue 1 , April 1979 , pp. 97 - 109
Copyright
Copyright © Cambridge University Press 1979

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References

Andrewartha, H. G. (1952). Diapause in relation to the ecology of insects.—Biol. Rev. 27, 50–107.CrossRefGoogle Scholar
Common, I. F. B. (1953) The Australian species of Heliothis (Lepidoptera: Noctuidae) and their pest status.—Aust. J. Zool. 1, 319–344.CrossRefGoogle Scholar
Cunningham, R. B., Lewis, T. & Wilson, A. G. L. (in press). Biothermal development. A distribution model for prediction of emergence of diapausing Heliothis armigera. Appl. Statist.Google Scholar
Fye, R. E. & Carranza, R. L. (1973). Cotton pests: overwintering of three lepidopterous species in Arizona.—J. econ. Ent. 66, 657–659.CrossRefGoogle Scholar
Holtzer, T. O.Bradley, J. R. Jr. & RABB, R. L. (1976). Effects of various temperature regimes on the time required for emergence of diapausing Heliothis zea.—Ann. ent. Soc. Am. 69, 257—260.Google Scholar
Komarova, O. S. (1960). On the conditions determining diapause of hibernating pupae of Chioridea obsoleta F. (Lepidoptera: Noctuidae).—Ent. Rev., Wash. 38, 318—325.Google Scholar
Pearson, E. O. (1958). The insect pests of cotton in tropical Africa.— 355 pp. London, Commonwealth Institute of Entomology.Google Scholar
Phillips, J. R. & Newsom, L. D. (1966). Diapause in Heliothis zea and Heliothis virescens (Lepidoptera: Noctuidae).—Ann. ent. Soc. Am. 59, 154—159.CrossRefGoogle Scholar
Shiller, I. (1946). A hibernation cage for the pink bollworm.—U.S. Bur. Ent. P1. Quarantine, E.T. Ser. no. 226, 1—6.Google Scholar
Tauber, M. J. & Tauber, C. A. (1976). Insect seasonality: diapause maintenance, termination, and postdiapause development.—A. Rev. Ent. 21, 81—107.CrossRefGoogle Scholar
Wellso, S. G. & Adkisson, P. L. (1966). A long-day short-day effect in the photoperiodic control of the pupal diapause of the bollworm, Heliothis zea (Boddie).—J. Insect Physiol. 12, 1455—1465.CrossRefGoogle Scholar
Wilson, A. G. L. & Greenup, L. R. (1977). The relative injuriousness of insect pests of cotton in the Namoi Valley, New South Wales.—Aust. I. Ecol. 2, 319—328.CrossRefGoogle Scholar
Wright, W. E. (1970). Cotton pests and their control.—Agric. Gaz. N.S.W. 81, 268—278.Google Scholar