Summer and winter diapause in 'Helicoverpa punctigera': adaptations for a changeable climate

Kristian Le Mottee; Peter Gregg; Alice del Socorro

Abstract

Apparent changes in the ecology of 'Helicoverpa punctigera' (Wallengren), including reduced migration from inland Australia and increased proportions of 'H. punctigera' overwintering relative to Helicoverpa armigera (Hübner) in the Namoi Valley have led to concerns about the possibility of Bt (Bollgard II cotton) resistance arising in the future. We have been investigating potential changes in migration and overwintering to determine whether these effects may be reducing the dilution of resistance alleles in the population, and potentially producing a resistant population. In this presentation I will focus on overwintering and diapause.

Original language	English
Pages	46-46
Publication status	Published - 2015
Event	AES 2015: 46th Australian Entomological Society Conference - Cairns, Australia Duration: 27 Sept 2015 → 30 Sept 2015

Conference

Conference	AES 2015: 46th Australian Entomological Society Conference
City	Cairns, Australia
Period	27/09/15 → 30/09/15

Keywords

Crop and Pasture Protection (Pests, Diseases and Weeds)

Access to Document

https://hdl.handle.net/1959.11/21068

Handle.net

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Cite this

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title = "Summer and winter diapause in 'Helicoverpa punctigera': adaptations for a changeable climate",

abstract = "Apparent changes in the ecology of 'Helicoverpa punctigera' (Wallengren), including reduced migration from inland Australia and increased proportions of 'H. punctigera' overwintering relative to Helicoverpa armigera (H{\"u}bner) in the Namoi Valley have led to concerns about the possibility of Bt (Bollgard II cotton) resistance arising in the future. We have been investigating potential changes in migration and overwintering to determine whether these effects may be reducing the dilution of resistance alleles in the population, and potentially producing a resistant population. In this presentation I will focus on overwintering and diapause.",

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AU - del Socorro, Alice

PY - 2015

Y1 - 2015

N2 - Apparent changes in the ecology of 'Helicoverpa punctigera' (Wallengren), including reduced migration from inland Australia and increased proportions of 'H. punctigera' overwintering relative to Helicoverpa armigera (Hübner) in the Namoi Valley have led to concerns about the possibility of Bt (Bollgard II cotton) resistance arising in the future. We have been investigating potential changes in migration and overwintering to determine whether these effects may be reducing the dilution of resistance alleles in the population, and potentially producing a resistant population. In this presentation I will focus on overwintering and diapause.

AB - Apparent changes in the ecology of 'Helicoverpa punctigera' (Wallengren), including reduced migration from inland Australia and increased proportions of 'H. punctigera' overwintering relative to Helicoverpa armigera (Hübner) in the Namoi Valley have led to concerns about the possibility of Bt (Bollgard II cotton) resistance arising in the future. We have been investigating potential changes in migration and overwintering to determine whether these effects may be reducing the dilution of resistance alleles in the population, and potentially producing a resistant population. In this presentation I will focus on overwintering and diapause.

KW - Crop and Pasture Protection (Pests, Diseases and Weeds)

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