Efficacy and Deployment of Transgenic Plants for Stemborer Management

Bergvinson, D and Willcox , M and Hoisington, D A (1997) Efficacy and Deployment of Transgenic Plants for Stemborer Management. International Journal of Tropical Insect Science formerly Insect Sci Appl, 17 (1). pp. 157-167. ISSN 1742-7584

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Abstract

Transgenic plants expressing Bacillus thuringiensis δ-endotoxins are now being used commercially in several crop species. These toxins have demonstrated good control of temperate (Ostrinia nubilalis) and tropical (Diatraea grandiosella and D. saccharalis) stemborers in maize. Resistance to B. thuringiensis toxins has been reported in over 11 species in both field and laboratory studies, demonstrating the need for resistance management strategies to prolong the efficacy of this valuable pest management tool within an integrated control programme. Resistance involves reduced binding of toxins to midgut epithelial cells and is generally considered to be a recessive trait. Resistance management will require the use of spatial and temporal refugia which may require unique schemes for each pest complex. Information is presented on the mode of action of cry toxins, resistance mechanisms, interaction of transgenic plants and biocontrol agents, and management/deployment strategies for transgenic maize in tropical ecologies.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Diatraea grandiosella, Diatraea saccharalis, Spodoptera jugiperda, transgenic plants, Bacillus thuringiensis, o-endotoxin, tritrophic interactions, management, refugia
Subjects:	Others > Entomology
Depositing User:	Mr Siva Shankar
Date Deposited:	19 Mar 2012 06:25
Last Modified:	19 Mar 2012 06:25
URI:	http://oar.icrisat.org/id/eprint/5757
Official URL:	http://dx.doi.org/10.1017/S1742758400022281
Projects:	GLO / 90 / 003 and GLO / 91 / 014
Funders:	UNDP
Acknowledgement:	[NOTE: D. A. Hoisington is presently with ICRISAT (Patancheru)]---The authors wish to thank Dr H. Kumar for assistance evaluating trials. Financial assistance provided by the UNDP project Nos. GLO / 90 / 003 and GLO / 91 / 014 for the development of stress-resistant and transgenic maize, respectively. The opinions expressed in this paper are the responsibility of the authors.
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