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An update on genetically modified crops
(Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal, 2008)
Current situation of pests targeted by Bt crops in Latin America
(Elsevier Inc, 2016-06)
Transgenic crops producing Bacillus thuringiensis- (Bt) insecticidal proteins (Bt crops) have provided useful pest management tools to growers for the past 20 years. Planting Bt crops has reduced the use of synthetic ...
Compatibility of Bt biopesticides and adjuvants for Spodoptera frugiperda control
(2021-12-01)
Spodoptera frugiperda is a pest of economic importance for several crops with resistance reports to Bt crops and pesticides. Eco-friendly Bt biopesticides may be an alternative to chemical insecticides due to their selectivity ...
Water deprivation induces biochemical changes without reduction in the insecticidal activity of maize and soybean transgenic plants
(2021-08-01)
Like conventional crops, transgenic plants expressing insecticidal toxins from Bacillus thuringiensis (Bt) are subjected to water deprivation. However, the effects of water deprivation over the insecticidal activity of Bt ...
Evolutionary process modeling with Bayesian inference of Spodoptera frugiperda ballooning and walking dispersal in Bt and non-Bt cotton plant mixtures
(2021-01-01)
Transgenic crops expressing Bacillus thuringiensis Berliner (Bt) have been cultivated throughout the world as a great technological tool for developing integrated pest management. We hypothesized that artificial landscapes ...
The implications of homozygous vip3Aa20- and cry1Ab-maize on Spodoptera frugiperda control
(2021-01-01)
Historically, Bt maize hybrids have been produced with the Bt alleles in a hemizygous state. Homozygous Bt transgenes increase the expression of Bt proteins in plants; however, recent studies have only briefly explored the ...
Homozygosis of Bt locus increases Bt protein expression and the control of Spodoptera frugiperda (Lepidoptera: Noctuidae) in maize hybrids
(2019-10-01)
Spodoptera frugiperda (J.E. Smith) is the main pest of maize in Brazil and its control has been targeted by Bt maize hybrids. Generally, Bt maize hybrids possess the transgenic locus in a hemizygous condition, that is, ...
Effect of bacillus thuringiensis on parasitoids and predators
(2017-06-10)
Advances in biotechnological studies have led to the development of genetically modified (GM) crops. The commercial release of transgenic plants producing Bacillus thuringiensis (Bt) insecticidal proteins has contributed ...
Molecular identification for Helicoverpa spp. in Bt and non- Bt crops in central Argentina
(Embrapa Secretaria de Pesquisa e Desenvolvimento, 2022-06-24)
The objective of this work was to identify, by molecular analysis, the species of the genus Helicoverpa in corn, soybean, and lucerne Bt and non-Bt crops, in central Argentina. A total of 1,343 carterpillars were analyzed ...