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Residual herbicides in Roundup Ready soybean: A case study in multiple years and locations with Ipomoea triloba Ciência e Agrotecnologia
Ovejero,Ramiro Fernando Lopez; Picoli Junior,Gilmar José; Takano,Hudson Kagueyama; Palhano,Matheus; Westra,Philip.
ABSTRACT The evolution of glyphosate-resistant and -tolerant weeds has caused changes in weed management around the world. Residual herbicides are crucial tools for weed management, but the rate of adoption by soybean growers remains very low in Brazil. In this research, we used glyphosate tolerant Ipomoea triloba as a model weed species to evaluate the advantages of using residual herbicides on soybeans in multiple years and locations of transition and Cerrado regions of Brazil, rather than relying only on post-emergence control. Most residual herbicides provided enough residual activity to allow a longer application window in post-emergence. Treatments with residual herbicides increased overall weed control, preventing weed interference and increasing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pre-emergence; Weed management; Glyphosate resistance; Crop yield; Weed interference..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542019000100206
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Social Costs of Herbicide Resistance: The Case of Resistance to Glyphosate AgEcon
Marsh, Sally P.; Llewellyn, Rick S.; Powles, Stephen B..
Unlike in the pesticide and antibiotic resistance literature, potential social costs and externalities associated with herbicide resistance have not generally been considered by economists. The economics of managing herbicide resistance in weeds has focused on cost-effective responses by growers to the development of resistance at the individual farm and field level. Economic analyses of optimal herbicide use have focused on optimising farmer returns in the long run. Weeds have been considered less mobile, compared to insects and diseases, suggesting that externalities resulting from resistance spread will be minimal and any consequent social costs low. Glyphosate is the world's most widely used broad-spectrum non-selective herbicide. Declining glyphosate...
Tipo: Conference Paper or Presentation Palavras-chave: Glyphosate resistance; Herbicide resistance; Social costs; Externalities; Resistance mobility; Crop Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/25413
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