Cited by 334Insect Resistance and GeneticsGenetically Modified Organisms ResearchInsect-Plant Interactions and Control

First report of field resistance by the stem borer, Busseola fusca (Fuller) to Bt-transgenic maize

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van Rensburg, J. B.J.·2007·South African Journal of Plant and Soil

Abstract

Reports of severe damage caused by the African stem borer, Busseola fusca (Fuller) to Mon810-transgenic maize (Bt) prompted a study in which the survival of progenies of diapause larvae collected from both a Bt and non-Bt planting were compared when feeding on various Bt and non-Bt hybrids. Field and greenhouse grown plants were artificially infested with neonate larvae. Larval mass was recorded at two-day intervals for three weeks. Data were subjected to simple regression analyses followed by pair wise comparison of the slopes. The two borer populations showed similar larval mass gains on non-Bt hybrids but differed in the response to Bt-hybrids. Appreciable numbers of larvae from the non-Bt derived population survived only to the eighth day. In contrast, substantial numbers of larvae of the Bt-derived population survived over the entire trial period. The mean larval mass of the Bt-derived population at the conclusion of the experiment was less on Bt-hybrids than on their susceptible counterparts. This indicates that the Bt-derived population has attained a level of resistance where some larvae are able to survive in the presence of the Bt-toxin but not without some detrimental effect on larval growth rate. Since producers are inclined to provide refugia under rain fed conditions in the immediate vicinity of irrigated plantings rather than as part of irrigated fields, the known preference of moths for high humidity could have contributed to increased selection pressure towards the development of resistance to the Bt-toxin.

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Crossref · 10.1080/02571862.2007.10634798

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  • Resistance and cross-resistance to Bt maize were recently detected in Spodoptera frugiperda in Puerto Rico, Busseola fusca in South Africa, and D. virgifera in Iowa, even though refuges have been mandated in USA, EU, Australia and elsewhere.

    “Actually, resistance and cross-resistance to Bt maize were recently detected in Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in Puerto Rico37, Busseola fusca (Fuller) (Lepidoptera: Noctuidae) in South Africa38 and in the Coleoptera D. virgifera in Iowa39 even though the implementation of refuges has been mandated in USA, EU, Australia and elsewhere40.”

    From Impact of genetically engineered maize on agronomic, environmental and toxicological traits: a meta-analysis of 21 years of field data (2018) · cites this paper as [38]

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  1. HAMMERTON, J. & STOWELL, G (Eds.), 1963. New Universal Encyclopedia 5, 2698. Caxton Publishing Co., London.

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Authors
van Rensburg, J. B. J.
Affiliations
a ARC-Grain Crops Institute , Private Bag X1251, Potchefstroom , 2520 , South Africa E-mail:
Venue
South African Journal of Plant and Soil
Published
2007-01
Volume
24
Issue
3
Pages
147-151
ISSN
  • 0257-1862 (ISSN-L)
  • 2167-034X
OpenAlex
W2170702161
Cited by
334
References
15
Citations by year
2026: 5 · 2025: 8 · 2024: 8 · 2023: 7 · 2022: 16 · 2021: 8 · 2020: 20 · 2019: 10 · 2018: 13 · 2017: 23 · 2016: 31 · 2015: 19 · 2014: 26 · 2013: 25 · 2012: 43
FWCI
5.93
Type
journal article
Language
en
Open access
Locations
South African Journal of Plant and Soil (publishedVersion)
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
Busseola fusca, Bt maize, MON810, insecticide resistance, delta-endotoxin, larval survival, refugia, humidity preference, selection pressure, maize pests

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