Results 41 to 50 of about 36,046 (292)

Maize stemborer predator activity under ‘push – pull’ system and Bt-maize: A potential component in managing Bt resistance

International Journal of Pest Management, 2006
Abstract Studies were conducted between 2002 and 2004 in experimental plots at two sites in western Kenya and one site in South Africa, to assess the potential role of the ‘push – pull’ strategy in stemborer resistance management in Bt-maize through its influence on the pests' oviposition and mortality from predation.
Midega, C. A. O., Khan, Z. R., Van Den Berg, J., Ogol, C. K. P. O., Pickett, J. A., Wadhams, L. J.   +5 more
openaire   +1 more source

EFFECT OF EARWORM INJURIES ON FUMONISINS PRODUCTION IN Bt AND NON-Bt MAIZE

Revista Brasileira de Milho e Sorgo, 2022
Tests were carried out to assess fumonisins production due to lepidopteran feeding on the ears of the hybrid DKB 390VTPRO (Cry1A105/ Cry2Ab2) and in its non-Bt isogenic version. Maize ears were harvested and classified according to injury size, and fumonisin levels for each injury class were quantified.
SIMONE MARTINS MENDES, MARCO AURÉLIO GUERRA PIMENTEL, VALÉRIA APARECIDA VIEIRA QUEIROZ, DAGMA DIONÍSIA DA SILVA, RODRIGO VERAS DA COSTA   +4 more
openaire   +1 more source

Survival Rate, Food Consumption, and Tunneling of the Formosan Subterranean Termite (Isoptera: Rhinotermitidae) Feeding on Bt and non-Bt Maize

Sociobiology, 2014
Although several termite species were reported to be susceptible to some Bacillus thuringiensis (Bt) subspecies, no research has been conduced to evaluate the possible non-target effect of genetically modified (GM) Bt crops on termites.
Bal Krishna Gautam
doaj   +1 more source

Comparative Diversity of Arthropods on Bt Maize and Non-Bt Maize in two Different Cropping Systems in South Africa

Environmental Entomology, 2014
The biodiversity of an agroecosystem is not only important for its intrinsic value but also because it influences ecological functions that are vital for crop production in sustainable agricultural systems and the surrounding environment. A concern about genetically modified (GM) crops is the potential negative impact that such crops could have on ...
Truter, J., Van Hamburg, H., Van den Berg, J.   +2 more
openaire   +3 more sources

Effects of feeding Bt MON810 maize to pigs for 110 days on peripheral immune response and digestive fate of the cry1Ab gene and truncated Bt toxin.

PLoS ONE, 2012
BackgroundThe objective of this study was to evaluate potential long-term (110 days) and age-specific effects of feeding genetically modified Bt maize on peripheral immune response in pigs and to determine the digestive fate of the cry1Ab gene and ...
Maria C Walsh, Stefan G Buzoianu, Mary C Rea, Orla O'Donovan, Eva Gelencsér, Gabriella Ujhelyi, R Paul Ross, Gillian E Gardiner, Peadar G Lawlor   +8 more
doaj   +1 more source

Selection, effective dominance, and completeness of Cry1A.105/Cry2Ab2 dual-protein resistance in Helicoverpa zea (Boddie) (Lepidoptera: Noctuidae)

Journal of Integrative Agriculture, 2023
In the U.S., Helicoverpa zea (Boddie) is a major pest targeted by both transgenic maize and cotton expressing Bacillus thuringiensis (Bt) proteins. Resistance of insect to Bt maize and cotton containing cry1A and cry2A genes has widely occurred in the U ...
Tiago SILVA, Ying NIU, Tyler TOWLES, Sebe BROWN, Graham P. HEAD, Wade WALKER, Fangneng HUANG   +6 more
doaj   +1 more source

Western corn rootworm and Bt maize [PDF]

GM Crops & Food, 2012
Crops genetically engineered to produce insecticidal toxins from the bacterium Bacillus thuringiensis (Bt) manage many key insect pests while reducing the use of conventional insecticides. One of the primary pests targeted by Bt maize in the United States is the western corn rootworm, Diabrotica virgifera virgifera LeConte.
Aaron J, Gassmann, Jennifer L, Petzold-Maxwell, Ryan S, Keweshan, Mike W, Dunbar   +3 more
openaire   +2 more sources

Video-tracking and On-plant Tests Show Cry1Ab Resistance Influences Behavior and Survival of Neonate Ostrinia nubilalis Following Exposure to Bt Maize [PDF]

, 2010
To examine how resistance to Bacillus thuringiensis (Bt) toxins influences movement and survival of European corn borer (Ostrinia nubilalis [Hübner]) neonates, the responses of Cry1Ab-resistant , -susceptible, and hybrid (F1) larvae were examined using ...
Andre L. B. Crespo, BD Siegfried, BE Hibbard, BE Tabashnik, Blair D. Siegfried, CD Parker, David W. Onstad, DW Onstad, F Gould, FN Huang, GL Reed, GP Georghiou, H Rafalimanana, JA Lockwood, Jarrad R. Prasifka, JM Schwartz, JR Prasifka, JR Prasifka, MO Harris, MO Harris, PA Umoru, PM Davis, Richard L. Hellmich, S Ramachandran, SE Ross, SP Strnad   +25 more
core   +3 more sources

Effect of Cry1Ab protein on rhizobacterial communities of Bt-maize over a four-year cultivation period.

PLoS ONE, 2012
BackgroundBt-maize is a transgenic variety of maize expressing the Cry toxin from Bacillus turingiensis. The potential accumulation of the relative effect of the transgenic modification and the cry toxin on the rhizobacterial communities of Bt-maize has ...
Jorge Barriuso, José R Valverde, Rafael P Mellado   +2 more
doaj   +1 more source

Transgene expression and Bt protein content in transgenic Bt maize (MON810) under optimal and stressful environmental conditions. [PDF]

PLoS ONE, 2015
Bt protein content in transgenic insect resistant (Bt) maize may vary between tissues within plants and between plants growing under different environmental conditions.
Miluse Trtikova, Odd Gunnar Wikmark, Niklaus Zemp, Alex Widmer, Angelika Hilbeck   +4 more
doaj   +1 more source