Open AccessCrop rotation mitigates impacts of corn rootworm resistance to transgenic Bt corn
Author(s) -
Yves Carrière,
Zachary Brown,
Serkan Aglasan,
Pierre Dutilleul,
Matthew Carroll,
Graham Head,
Bruce E. Tabashnik,
Peter Søgaard Jørgensen,
Scott P. Carroll
Publication year - 2020
Publication title -
proceedings of the national academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.2003604117
Subject(s) - genetically modified maize , bacillus thuringiensis , western corn rootworm , agronomy , crop , sowing , genetically modified crops , biology , pest analysis , crop rotation , resistance (ecology) , zea mays , genetically modified organism , transgene , bacteria , horticulture , genetics , biochemistry , gene
Significance The western corn rootworm, a major insect pest in the Midwestern United States, has evolved resistance to genetically engineered corn that produces insecticidal proteins derived from the bacteriumBacillus thuringiensis (Bt). To evaluate tactics for reducing the damage caused by resistant rootworms, we analyzed field data for 2011 to 2016 from Illinois, Iowa, and Minnesota. The frequency of corn fields with severe rootworm damage was reduced by rotating corn with other crops and by not planting the same type of Bt corn year after year in the same field. These results support the EPA’s recommendations to decrease the negative impacts of rootworm resistance to Bt corn by rotating corn with other crops and diversifying the type of Bt corn planted.
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