Consulta: subjectFacets:"Insect resistance management"
Registros recuperados: 2
Data/hora: 16/06/2024 19:26:59

Estimating the Benefits of Bt Corn and Cost of Insect Resistance Management Ex Ante
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Langrock,   Ines; Ostlie,   Kenneth.
This paper estimates farmer benefits for corn rootworm (CRW) active Bt corn and costs of complying with Environmental Protection Agency insect resistance management requirements.  The estimates are obtained from farmer survey data that were collected in Minnesota in 2002, just prior to the commercial releases of CRW Bt corn. Benefit estimates range from $14 to $33.4 million, while compliance cost estimated range from $3.5 to $8.7 million depending on whether or not CRW Bt corn also controlled the European corn borer and whether of not it was approved for sale in major export markets.
Tipo: Journal Article
Palavras-chave: Bt corn; Compliance costs; Corn rootworm; Insect resistance management; Willingness to pay; Crop Production/Industries.
Ano: 2006
URL: http://purl.umn.edu/8619

Biological activity of Bt proteins expressed in different structures of transgenic corn against  Spodoptera frugiperda
Provedor de dados: 65
Autores: Bernardi,Daniel; Bernardi,Oderlei; Horikoshi,Renato Jun; Salmeron,Eloisa; Okuma,Daniela Miyuki; Omoto,Celso.
ABSTRACT:  Spodoptera frugiperda (J. E. Smith) is the main target pest of Bt corn technologies, such as YieldGard VT PRO(tm) (Cry1A.105/Cry2Ab2) and PowerCore(tm) (Cry1A.105/Cry2Ab2/Cry1F). In this study, it was evaluated the biological activity of Bt proteins expressed in different plant structures of YieldGard VT PRO(tm) and PowerCore(tm) corn against  S. frugiperda . Complete mortality of S. frugiperda neonates was observed on leaf-disc of both Bt corn technologies. However, the mortality in silks and grains was lower than 50 and 6%, respectively. In addition, more than 49% of the surviving larvae in silks and grains completed the biological cycle. However, all life table parameters were negatively affected in insects that developed in silks and grains...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fall armyworm; Bacillus thuringiensis; Bt corn; Insect resistance management.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601019