2016 International Congress of Entomology 2016
DOI: 10.1603/ice.2016.92549
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Field-evolved resistance to Bt maize by western corn rootworm

Abstract: Background: Crops engineered to produce insecticidal toxins derived from the bacterium Bacillus thuringiensis (Bt) are planted on millions of hectares annually, reducing the use of conventional insecticides and suppressing pests. However, the evolution of resistance could cut short these benefits. A primary pest targeted by Bt maize in the United States is the western corn rootworm Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae).

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Cited by 87 publications
(207 citation statements)
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“…Similarly, resistance to Cry3Bb1 corn and crossresistance between Cry3Bb1 and mCry3A was identified for western corn rootworm populations from Nebraska (Wangila et al 2015), and resistance to Cry3Bb1 corn has been confirmed in Illinois (Schrader et al 2016). To date, however, western corn rootworm populations have not developed resistance to Cry34/35Ab1 corn (Gassmann et al 2011(Gassmann et al , 2014Wangila et al 2015).…”
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confidence: 94%
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“…Similarly, resistance to Cry3Bb1 corn and crossresistance between Cry3Bb1 and mCry3A was identified for western corn rootworm populations from Nebraska (Wangila et al 2015), and resistance to Cry3Bb1 corn has been confirmed in Illinois (Schrader et al 2016). To date, however, western corn rootworm populations have not developed resistance to Cry34/35Ab1 corn (Gassmann et al 2011(Gassmann et al , 2014Wangila et al 2015).…”
mentioning
confidence: 94%
“…Past research with the single-plant bioassay used in this study has focused on resistance to Cry3Bb1 corn, and has found that resistance ratios of 3 to 6 are associated with severe feeding injury to Cry3Bb1 corn in the field (Gassmann et al 2011(Gassmann et al , 2014Andow et al 2016). Across multiple years and multiple states, severe injury to Cry3Bb1 corn has been associated with increased survival in plant-based bioassays (Gassmann et al 2011(Gassmann et al , 2014Wangila et al 2015;Schrader et al 2016).…”
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confidence: 97%
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