2020 journal article

Crop rotation mitigates impacts of corn rootworm resistance to transgenic Bt corn

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 117(31), 18385–18392.

By: Y. Carriere *, Z. Brown n , S. Aglasan n, P. Dutilleul *, M. Carroll*, G. Head *, B. Tabashnik *, P. Jorgensen *, S. Carroll *

author keywords: resistance management; resistance mitigation; landscape analysis
MeSH headings : Animals; Bacillus thuringiensis / genetics; Bacillus thuringiensis / metabolism; Coleoptera / drug effects; Coleoptera / physiology; Crop Production / economics; Crop Production / methods; Endotoxins / genetics; Endotoxins / metabolism; Endotoxins / pharmacology; Insecticide Resistance; Iowa; Pest Control, Biological / economics; Plant Diseases / economics; Plant Diseases / immunology; Plant Diseases / parasitology; Plant Diseases / prevention & control; Plants, Genetically Modified / genetics; Plants, Genetically Modified / immunology; Plants, Genetically Modified / parasitology; Soybeans / growth & development; Zea mays / genetics; Zea mays / growth & development; Zea mays / immunology; Zea mays / parasitology
TL;DR: 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, and the effectiveness of corn rotation for mitigating Bt resistance problems did not differ significantly between crop-reporting districts with versus without prevalent rotation-resistant rootworm populations. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (Web of Science)
Source: Web Of Science
Added: October 19, 2020

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 bacterium Bacillus 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.