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Effect of Seed Blends and Soil-Insecticide on Western and Northern Corn Rootworm Emergence from mCry3A+eCry3.1Ab Bt Maize.
J Econ Entomol. 2015 Jun; 108(3):1260-70.JE

Abstract

Seed blends containing various ratios of transgenic Bt maize (Zea mays L.) expressing the mCry3A+eCry3.1Ab proteins and non-Bt maize (near-isoline maize) were deployed alone and in combination with a soil applied pyrethroid insecticide (Force CS) to evaluate the emergence of the western corn rootworm, Diabrotica virgifera virgifera LeConte, in a total of nine field environments across the Midwestern United States in 2010 and 2011. Northern corn rootworm, Diabrotica barberi Smith & Lawrence emergence was also evaluated in four of these environments. Both western and northern corn rootworm beetle emergence from all Bt treatments was significantly reduced when compared with beetle emergence from near-isoline treatments. Averaged across all environments, western corn rootworm beetle emergence from 95:5, 90:10, and 80:20 seed blend ratios of mCry3A+eCry3.1Ab: near-isoline were 2.6-, 4.2-, and 6.7-fold greater than that from the 100:0 ratio treatment. Northern corn rootworm emergence from the same seed blend treatments resulted in 2.8-, 3.2-, and 4.2-fold more beetles than from the 100:0 treatment. The addition of Force CS (tefluthrin) significantly reduced western corn rootworm beetle emergence for each of the three treatments to which it was applied. Force CS also significantly delayed the number of days to 50% beetle emergence in western corn rootworms. Time to 50% beetle emergence in the 100% mCry3A+eCry3.1Ab treatment with Force CS was delayed 13.7 d when compared with western corn rootworm beetle emergence on near-isoline corn. These data are discussed in terms of rootworm resistance management.

Authors+Show Affiliations

USDA-ARS, Plant Genetics Research Unit, 205 Curtis Hall, University of Missouri, Columbia, MO 65211, USA Present address: Extension Service, Agriculture and Natural Resources Unit, West Virginia University, Morgantown, WV 26506, USA.Syngenta Biotechnology, Inc., 3054 E. Cornwallis Rd., Research Triangle Park, NC 27709, USA Present address: Cotton Incorporated, 6399 Weston Pkwy, Cary, NC 27513, USA.Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.Department of Entomology, Iowa State University, Ames, IA 50011, USA.Department of Entomology, University of Nebraska, Lincoln, NE 68583, USA.DM Crop Research Group, Inc., 700 North 3rd St., P.O. Box 53, Polk City, IA 50226, USA.Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.Department of Entomology, Purdue University, West Lafayette, IN 47907, USA.Department of Entomology, Purdue University, West Lafayette, IN 47907, USA.Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.Department of Entomology, Iowa State University, Ames, IA 50011, USA.USDA-ARS, Plant Genetics Research Unit, 205 Curtis Hall, University of Missouri, Columbia, MO 65211, USA Bruce.Hibbard@ars.usda.gov.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

26470254

Citation

Frank, Daniel L., et al. "Effect of Seed Blends and Soil-Insecticide On Western and Northern Corn Rootworm Emergence From mCry3A+eCry3.1Ab Bt Maize." Journal of Economic Entomology, vol. 108, no. 3, 2015, pp. 1260-70.
Frank DL, Kurtz R, Tinsley NA, et al. Effect of Seed Blends and Soil-Insecticide on Western and Northern Corn Rootworm Emergence from mCry3A+eCry3.1Ab Bt Maize. J Econ Entomol. 2015;108(3):1260-70.
Frank, D. L., Kurtz, R., Tinsley, N. A., Gassmann, A. J., Meinke, L. J., Moellenbeck, D., Gray, M. E., Bledsoe, L. W., Krupke, C. H., Estes, R. E., Weber, P., & Hibbard, B. E. (2015). Effect of Seed Blends and Soil-Insecticide on Western and Northern Corn Rootworm Emergence from mCry3A+eCry3.1Ab Bt Maize. Journal of Economic Entomology, 108(3), 1260-70. https://doi.org/10.1093/jee/tov081
Frank DL, et al. Effect of Seed Blends and Soil-Insecticide On Western and Northern Corn Rootworm Emergence From mCry3A+eCry3.1Ab Bt Maize. J Econ Entomol. 2015;108(3):1260-70. PubMed PMID: 26470254.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of Seed Blends and Soil-Insecticide on Western and Northern Corn Rootworm Emergence from mCry3A+eCry3.1Ab Bt Maize. AU - Frank,Daniel L, AU - Kurtz,Ryan, AU - Tinsley,Nicholas A, AU - Gassmann,Aaron J, AU - Meinke,Lance J, AU - Moellenbeck,Daniel, AU - Gray,Michael E, AU - Bledsoe,Larry W, AU - Krupke,Christian H, AU - Estes,Ronald E, AU - Weber,Patrick, AU - Hibbard,Bruce E, Y1 - 2015/04/24/ PY - 2014/11/03/received PY - 2015/03/13/accepted PY - 2015/10/16/entrez PY - 2015/10/16/pubmed PY - 2015/11/7/medline KW - 5307 KW - Diabrotica barberi KW - Diabrotica virgifera virgifera KW - MIR604 KW - insect resistance management KW - refuge-in-a-bag KW - seed mix refuge SP - 1260 EP - 70 JF - Journal of economic entomology JO - J Econ Entomol VL - 108 IS - 3 N2 - Seed blends containing various ratios of transgenic Bt maize (Zea mays L.) expressing the mCry3A+eCry3.1Ab proteins and non-Bt maize (near-isoline maize) were deployed alone and in combination with a soil applied pyrethroid insecticide (Force CS) to evaluate the emergence of the western corn rootworm, Diabrotica virgifera virgifera LeConte, in a total of nine field environments across the Midwestern United States in 2010 and 2011. Northern corn rootworm, Diabrotica barberi Smith & Lawrence emergence was also evaluated in four of these environments. Both western and northern corn rootworm beetle emergence from all Bt treatments was significantly reduced when compared with beetle emergence from near-isoline treatments. Averaged across all environments, western corn rootworm beetle emergence from 95:5, 90:10, and 80:20 seed blend ratios of mCry3A+eCry3.1Ab: near-isoline were 2.6-, 4.2-, and 6.7-fold greater than that from the 100:0 ratio treatment. Northern corn rootworm emergence from the same seed blend treatments resulted in 2.8-, 3.2-, and 4.2-fold more beetles than from the 100:0 treatment. The addition of Force CS (tefluthrin) significantly reduced western corn rootworm beetle emergence for each of the three treatments to which it was applied. Force CS also significantly delayed the number of days to 50% beetle emergence in western corn rootworms. Time to 50% beetle emergence in the 100% mCry3A+eCry3.1Ab treatment with Force CS was delayed 13.7 d when compared with western corn rootworm beetle emergence on near-isoline corn. These data are discussed in terms of rootworm resistance management. SN - 0022-0493 UR - https://www.unboundmedicine.com/medline/citation/26470254/Effect_of_Seed_Blends_and_Soil_Insecticide_on_Western_and_Northern_Corn_Rootworm_Emergence_from_mCry3A+eCry3_1Ab_Bt_Maize_ DB - PRIME DP - Unbound Medicine ER -