Possible Effect of Genetically Modified Cotton on Foraging Habits of Early Instar Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Larvae

Yang, Y., Johnson, M-L. and Zalucki, M. P. (2008) Possible Effect of Genetically Modified Cotton on Foraging Habits of Early Instar Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Larvae. Australian Journal of Entomology, 47 2: 137-141. doi:10.1111/j.1440-06055.2008.00640.x


Author Yang, Y.
Johnson, M-L.
Zalucki, M. P.
Title Possible Effect of Genetically Modified Cotton on Foraging Habits of Early Instar Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Larvae
Formatted title
Possible Effect of Genetically Modified Cotton on Foraging Habits of Early Instar Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Larvae
Journal name Australian Journal of Entomology   Check publisher's open access policy
ISSN 1326-6756
Publication date 2008-05-01
Year available 2008
Sub-type Article (original research)
DOI 10.1111/j.1440-06055.2008.00640.x
Open Access Status
Volume 47
Issue 2
Start page 137
End page 141
Total pages 5
Place of publication Australia
Publisher Wiley-Blackwell Publishing Asia
Language eng
Subject C1
960413 Control of Plant Pests, Diseases and Exotic Species in Farmland, Arable Cropland and Permanent Cropland Environments
060808 Invertebrate Biology
Abstract We estimated survival and final location of neonate Helicoverpa armigera after 72 h on both genetically modified (GM) and conventional cotton at the squaring stage. On average, about 2.5% out of a total of 1620 initial larvae survived on two gene GM cotton (CS × 450, 289BGII®) compared with 39.5% out of a total of 810 initial larvae on Sicot 189, a conventional cotton variety. A disproportionate number of larvae were collected on squares of GM cotton, assuming they behave the same way on GM plants as on conventional plants but suffer higher rates of mortality. Our results imply that the behaviour of neonates on GM plants in terms of finding squares (and/or better survival on squares) may be contributing to the continued pest status of Helicoverpa on GM cotton from time to time. Experiments to determine if selection for changed behaviour in the field has or is occurring are urgently required.
Formatted abstract
We estimated survival and final location of neonate Helicoverpa armigera after 72 h on both genetically modified (GM) and conventional cotton at the squaring stage. On average, about 2.5% out of a total of 1620 initial larvae survived on two gene GM cotton (CS × 450, 289BGII®) compared with 39.5% out of a total of 810 initial larvae on Sicot 189, a conventional cotton variety. A disproportionate number of larvae were collected on squares of GM cotton, assuming they behave the same way on GM plants as on conventional plants but suffer higher rates of mortality. Our results imply that the behaviour of neonates on GM plants in terms of finding squares (and/or better survival on squares) may be contributing to the continued pest status of Helicoverpa on GM cotton from time to time. Experiments to determine if selection for changed behaviour in the field has or is occurring are urgently required.
Keyword Entomology
Entomology
ENTOMOLOGY
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
School of Biological Sciences Publications
Ecology Centre Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 14 times in Thomson Reuters Web of Science Article | Citations
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Created: Sat, 24 Jan 2009, 01:52:30 EST by Gail Walter on behalf of School of Biological Sciences