Non Target Effect of Cry1 Ab and Cry Ab x Cry3 Bb1 Bt Transgenic Maize on Orius insidiosus (Hemiptera: Anthocoridae) Abundance
Santiago A. Palizada1,5, Difabachew K. Belay1,2, Bamphitlhi Tiroesele1, Fatima Mustafa1, Muhammad Irfan Ullah1, Thomas Hunt3, Jaime Molina-Ochoa1,6*, Steven R. Skoda7, Pete L. Clark4 and John E. Foster1
6Universidad de Colima, Coordinación General de Investigación Científica, Centro Universitario de Investigación y Desarrollo Agropecuario, Km 40 autopista Colima-
Manzanillo, Tecomán, Colima 28930, México
- *Corresponding Author:
- Jaime Molina-Ochoa
Universidad de Colima
Coordinación General de Investigación Científica
Centro Universitario de Investigación y Desarrollo Agropecuario
Km. 40 autopista Colima-Manzanillo
Tecomán, Colima 28930, México
E-mail: [email protected]
Received date: January 05, 2013; Accepted date: June 28, 2013; Published date: July 01, 2013
Citation: Palizada SA, Belay DK, Tiroesele B, Mustafa F, Ullah MI, et al. (2013) Non Target Effect of Cry1 Ab and Cry Ab x Cry3 Bb1 Bt Transgenic Maize on Orius insidiosus (Hemiptera: Anthocoridae) Abundance. Entomol Ornithol Herpetol 2:107. doi: 10.4172/2161-0983.1000107
Copyright: © 2013 Palizada SA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Non-target effects of Cry1Ab x CP4 EPSPS and Cry1Ab+Cry3Bb1×CP4 EPSPS Bt transgenic new maize hybrids on insidious flower bugs [Orius insidiosus (Say)] was studied in Nebraska (Mead, C lay Center, and Concord) during 2007 and 2008. The Bt effect was compared to CP4 EPSPS maize (isoline), conventional maize, and insecticide applications of permethrin (Pounce® 1.5G) and bifenthrin (Capture® 2EC) to control first and second generations of Ostrinia nubilalis (Hübner), respectively. Yellow sticky cards, visual observations, and destructive samplings were used to evaluate O. insidiosus abundance. The yellow sticky card data in 2007 showed that O. insidiosus abundance was lower on Pounce® 1.5G treated non-Bt isoline maize plots compared to the BT transgenic hybrid s at 60 and 90 days after planting (DAP). From visual observations, numbers of O. insidiosus were lower in Pounce® 1.5G treated plots and no adverse effects of the Bt hybrids was observed. In 2008, no significant differences were found among treatments in the sticky card data, but the O. insidiosus population significantly increased, with increasing DAP, where the lowest and highest numbers were recorded at 30 and 120 DAP, respectively. In the visual observation and destructive samplings, numbers of O. insidiosus were lower at Concord compared to other sites. Results from the visual observation data in 2008 also revealed that O. insidiosus abundance was lower on Pounce® 1.5G treated plots compared to other treatments. This study showed no adverse effects of the new BT transgenic hybrids that included stacked resistance genes on O. insidiosus compared to the non-Bt maize hybrids.