Cited by 218Insect Resistance and GeneticsGenetically Modified Organisms ResearchInsect-Plant Interactions and Control

Global Patterns of Insect Resistance to Transgenic Bt Crops: The First 25 Years

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Tabashnik, Bruce E, Fabrick, Jeffrey A, Carrière, Yves·2023·Journal of Economic Entomology

Abstract

Crops genetically engineered to produce insecticidal proteins from the bacterium Bacillus thuringiensis (Bt) have improved pest management and reduced reliance on insecticide sprays. However, evolution of practical resistance by some pests has reduced the efficacy of Bt crops. We analyzed global resistance monitoring data for 24 pest species based on the first 25 yr of cultivation of Bt crops including corn, cotton, soybean, and sugarcane. Each of the 73 cases examined represents the response of one pest species in one country to one Bt toxin produced by one or more Bt crops. The cases of practical resistance rose from 3 in 2005 to 26 in 2020. Practical resistance has been documented in some populations of 11 pest species (nine lepidopterans and two coleopterans), collectively affecting nine widely used crystalline (Cry) Bt toxins in seven countries. Conversely, 30 cases reflect no decrease in susceptibility to Bt crops in populations of 16 pest species in 10 countries. The remaining 17 cases provide early warnings of resistance, which entail genetically based decreases in susceptibility without evidence of reduced field efficacy. The early warnings involve four Cry toxins and the Bt vegetative insecticidal protein Vip3Aa. Factors expected to favor sustained susceptibility include abundant refuges of non-Bt host plants, recessive inheritance of resistance, low resistance allele frequency, fitness costs, incomplete resistance, and redundant killing by multi-toxin Bt crops. Also, sufficiently abundant refuges can overcome some unfavorable conditions for other factors. These insights may help to increase the sustainability of current and future transgenic insecticidal crops.

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  • Field-evolved resistance has been observed in corn rootworm, one of the most serious corn pests in the US.

    “field-evolved resistance has been observed in corn rootworm, one of the most serious corn pests in the US ( 63 ).”

    From Environmental impacts of genetically modified crops (2024) · cites this paper as [63]

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Research works printed but not linked: 5

  1. Luttrell, R. G., I. Ali, K. C. Allen, S. Y. Young, III, A. Szalanski, K. Williams, G. Lorenz, C. D. Parker, Jr., and C. Blanco. 2004. Resistance to Bt in Arkansas populations of cotton bollworm, pp. 1373-1383.
  2. In D. A. Richter (ed.), Proceedings, 2004 Beltwide Cotton Conferences, 5-9 January 2004, San Antonio, TX. National Cotton Council of America, Memphis, TN.
  3. National Academies of Sciences, Engineering, and Medicine. 2016. Genetically engineered crops: experiences and prospects. National Academies Press, Washington, DC.
  4. Smith, J. L., and Y. Farhan. 2022. Monitoring resistance of Ostrinia nubilalis (Lepidoptera: Crambidae) in Canada to Cry toxins produced by Bt corn. J. Econ. Entomol. in press.
  5. Tabashnik, B. E., T. J. Dennehy, and Y. Carrière. 2005. Delayed resist- ance to Bt cotton in pink bollworm. Proc. Natl. Acad. Sci. U. S. A. 102: 15,389-15,393.

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Authors
Tabashnik, B. E., Fabrick, J. A., & Carrière, Y.
Affiliations
  • University of Arizona (US)
  • U.S. Arid Land Agricultural Research Center (US)
Venue
Journal of Economic Entomology
Published
2023-01-04
Volume
116
Issue
2
Pages
297-309
ISSN
  • 0022-0493 (ISSN-L)
  • 1938-291X
OpenAlex
W4313705693
Cited by
218
References
131
Citations by year
2026: 57 · 2025: 60 · 2024: 67 · 2023: 33 · 2022: 1
FWCI
13.14
Type
journal article
Language
en
Open access
Locations
  • Journal of Economic Entomology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Agriculture (2020-67013-31924)
  • National Institute of Food and Agriculture (2020-33522-32268, 2020-67013-31924)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Insect Resistance and Genetics
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Genetically Modified Organisms Research
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect-Plant Interactions and Control
Keywords
insect resistance, Bt crops, Bacillus thuringiensis, delta-endotoxin, Vip3Aa, resistance monitoring, refuge, lepidopteran pests, coleopteran pests, maize, cotton, soybean, sugarcane, fitness cost, incomplete resistance, recessive inheritance, resistance allele frequency

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