Sustained susceptibility of pink bollworm to Bt cotton in the United States.

Bruce E. Tabashnik, Shai Morin, Gopalan C. Unnithan, Alex J. Yelich, Christa Ellers-Kirk, Virginia S. Harpold, Mark S. Sisterson, Peter C. Ellsworth, Timothy J. Dennehy, Larry Antilla, Leighton Liesner, Mike Whitlow, Robert T. Staten, Jeffrey A. Fabrick, Xianchun Li, Yves Carrière

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Evolution of resistance by pests can reduce the benefits of transgenic crops that produce toxins from Bacillus thuringiensis (Bt) for insect control. One of the world's most important cotton pests, pink bollworm (Pectinophora gossypiella), has been targeted for control by transgenic cotton producing Bt toxin Cry1Ac in several countries for more than a decade. In China, the frequency of resistance to Cry1Ac has increased, but control failures have not been reported. In western India, pink bollworm resistance to Cry1Ac has caused widespread control failures of Bt cotton. By contrast, in the state of Arizona in the southwestern United States, monitoring data from bioassays and DNA screening demonstrate sustained susceptibility to Cry1Ac for 16 y. From 1996-2005, the main factors that delayed resistance in Arizona appear to be abundant refuges of non-Bt cotton, recessive inheritance of resistance, fitness costs associated with resistance and incomplete resistance. From 2006-2011, refuge abundance was greatly reduced in Arizona, while mass releases of sterile pink bollworm moths were made to delay resistance as part of a multi-tactic eradication program. Sustained susceptibility of pink bollworm to Bt cotton in Arizona has provided a cornerstone for the pink bollworm eradication program and for integrated pest management in cotton. Reduced insecticide use against pink bollworm and other cotton pests has yielded economic benefits for growers, as well as broad environmental and health benefits. We encourage increased efforts to combine Bt crops with other tactics in integrated pest management programs.

Original languageEnglish (US)
Pages (from-to)194-200
Number of pages7
JournalGM crops & food
Volume3
Issue number3
StatePublished - Jul 2012

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Pectinophora gossypiella
Bacillus thuringiensis
cotton
Pest Control
pests
Southwestern United States
integrated pest management
Insect Control
Environmental Health
Moths
R Factors
toxins
Insurance Benefits
Insecticides
genetically modified organisms
Biological Assay
sterile insect technique
India
China
insect control

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Tabashnik, B. E., Morin, S., Unnithan, G. C., Yelich, A. J., Ellers-Kirk, C., Harpold, V. S., ... Carrière, Y. (2012). Sustained susceptibility of pink bollworm to Bt cotton in the United States. GM crops & food, 3(3), 194-200.

Sustained susceptibility of pink bollworm to Bt cotton in the United States. / Tabashnik, Bruce E.; Morin, Shai; Unnithan, Gopalan C.; Yelich, Alex J.; Ellers-Kirk, Christa; Harpold, Virginia S.; Sisterson, Mark S.; Ellsworth, Peter C.; Dennehy, Timothy J.; Antilla, Larry; Liesner, Leighton; Whitlow, Mike; Staten, Robert T.; Fabrick, Jeffrey A.; Li, Xianchun; Carrière, Yves.

In: GM crops & food, Vol. 3, No. 3, 07.2012, p. 194-200.

Research output: Contribution to journalArticle

Tabashnik, BE, Morin, S, Unnithan, GC, Yelich, AJ, Ellers-Kirk, C, Harpold, VS, Sisterson, MS, Ellsworth, PC, Dennehy, TJ, Antilla, L, Liesner, L, Whitlow, M, Staten, RT, Fabrick, JA, Li, X & Carrière, Y 2012, 'Sustained susceptibility of pink bollworm to Bt cotton in the United States.', GM crops & food, vol. 3, no. 3, pp. 194-200.
Tabashnik BE, Morin S, Unnithan GC, Yelich AJ, Ellers-Kirk C, Harpold VS et al. Sustained susceptibility of pink bollworm to Bt cotton in the United States. GM crops & food. 2012 Jul;3(3):194-200.
Tabashnik, Bruce E. ; Morin, Shai ; Unnithan, Gopalan C. ; Yelich, Alex J. ; Ellers-Kirk, Christa ; Harpold, Virginia S. ; Sisterson, Mark S. ; Ellsworth, Peter C. ; Dennehy, Timothy J. ; Antilla, Larry ; Liesner, Leighton ; Whitlow, Mike ; Staten, Robert T. ; Fabrick, Jeffrey A. ; Li, Xianchun ; Carrière, Yves. / Sustained susceptibility of pink bollworm to Bt cotton in the United States. In: GM crops & food. 2012 ; Vol. 3, No. 3. pp. 194-200.
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