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A Bioeconomic Model of the Soybean Aphid Treatment Decision in Soybeans AgEcon
Olson, Kent D.; Badibanga, Thaddee Mutumba.
Since its first detection in the North Central region in July 2000, the soybean aphid (Aphis glycines Matsamura) has caused considerable loss in soybean (Glycine max L.) yield, bean quality, and producer income. Discovered first in Wisconsin and then in adjoining states, it is currently distributed in 21 US states and parts of Canada. In 2003, over 42 million acres of soybean in the North Central US were infested and over 7 million acres were treated with insecticides to control soybean aphid (Landis et al. 2003). Populations exceeding 24,000 aphids per plant and 40% losses in seed yield have been reported (DiFonzo & Hines 2002). Even prior to the outbreak of 2003, the Soybean Strategic Pest Management Plan identified soybean aphid as one of the key...
Tipo: Conference Paper or Presentation Palavras-chave: Soybean aphid; Bioeconomic model; Farm Management.
Ano: 2005 URL: http://purl.umn.edu/19237
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Economic Impacts of the U.S. Soybean Aphid Infestation: A Multi-Regional Competitive Dynamic Analysis AgEcon
Kim, C.S.; Schaible, Glenn D.; Garrett, Lynn; Lubowski, Ruben N.; Lee, Donna J..
We estimated the economic benefits resulting from controlling soybean aphid infestation by using a multi-regional competitive dynamic equilibrium model. Results indicate that the reduction of soybean production resulting from a soybean aphid infestation is largely absorbed by reducing soybean exports, due to the higher price elasticity of export demand compared to domestic demand. Producer benefits resulting from controlling soybean aphids would increase by between $949 million and $1.623 billion in ten years under various scenarios. Results also suggest that it is economically more efficient to control soybean aphids when the rate of intrinsic growth is relatively lower, the supply price elasticity of soybean acreage is relatively more elastic, and...
Tipo: Journal Article Palavras-chave: Soybean aphid; Invasive species; Producer surplus; Consumer surplus; Rag-1; Crop Production/Industries.
Ano: 2008 URL: http://purl.umn.edu/45660
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Spatially Optimal Habitat Management For Natural Pest Control Services AgEcon
Zhang, Wei; van derr Werf, Wopke; Swinton, Scott M..
The control of crop pests by their natural enemies represents an important ecosystem service that maintains the stability of agricultural systems and has the potential to mitigate pest control costs. Recently, there has been growing interest in enhancing natural control services via habitat management that provides resources for adult natural enemies, such as food and shelter. Management of natural enemy populations has received little attention in the economic literature on pest control. Most such prior studies have explored optimal chemical-based pest management. One recent paper developed a threshold-based pesticide decision rule to account for the presence of natural enemies. However, no prior studies have investigated economically optimal spatial...
Tipo: Conference Paper or Presentation Palavras-chave: Ecosystem services; Biological control; Natural enemies; Habitat management; Soybean aphid; Spatial optimization; Land use; Environmental Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/43030
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