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Étude Expérimentale du Rôle de la Température Dans la Diapause Embryonnaire d'Archanara Geminipunct [Lep. Noctuidae]

Étude Expérimentale du Rôle de la Température Dans la Diapause Embryonnaire d'Archanara... Summary The Noctuid moth Archanara geminipuncta is an alternate host for the Tachinid fly Lydella thompsoni, parasite of the European corn borer. The annual synchronization of host and parasite cycles partially depends on host development. The latter has been studied. The host species goes through an embryonic diapause from July to next April. The eggs are not reactivated unless they undergo a period of low temperatures (+ 2 °C for 3 months). In the south of France this stage is terminated at the end of the year. Then, the development goes slowly on throughout the winter months. At this time, the temperature threshold is about + 8 °C. Hatching usually occurs in April; consistent with local meteorological data, half of the eggs are most likely to hatch between March 26 and May 5 (probability 95 p. 100). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Étude Expérimentale du Rôle de la Température Dans la Diapause Embryonnaire d'Archanara Geminipunct [Lep. Noctuidae]

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Publisher
Taylor & Francis
Copyright
© 1981 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1981.12278274
Publisher site
See Article on Publisher Site

Abstract

Summary The Noctuid moth Archanara geminipuncta is an alternate host for the Tachinid fly Lydella thompsoni, parasite of the European corn borer. The annual synchronization of host and parasite cycles partially depends on host development. The latter has been studied. The host species goes through an embryonic diapause from July to next April. The eggs are not reactivated unless they undergo a period of low temperatures (+ 2 °C for 3 months). In the south of France this stage is terminated at the end of the year. Then, the development goes slowly on throughout the winter months. At this time, the temperature threshold is about + 8 °C. Hatching usually occurs in April; consistent with local meteorological data, half of the eggs are most likely to hatch between March 26 and May 5 (probability 95 p. 100).

Journal

Annales de la Société entomologique de France (N S ) – Taylor & Francis

Published: Apr 30, 1981

Keywords: Lepidoptera; Noctuidae; Archanara geminipuncta; Phragmites; Diapause; Somme températures

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