Current status of soybean rust control by fungicides

Miles, M. R.; Hartman, G. L.; Levy, C.; Morel, W.

doi:10.1039/b311463p

Cited by 32 publications

(14 citation statements)

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“…Although sources of resistance are known, resistant cultivars are not yet commercially available in the USA [68]. For management in an organic system, there are a number of studies that have shown that fungicides, including copper-based fungicides, can effectively reduce the severity of this disease [69]. Planting organic fields in isolation, or using early planting dates or earlier maturing cultivars may also be partially effective at reducing the impact of rust [70].…”

Section: Soybean Rustmentioning

confidence: 99%

Organically Grown Soybean Production in the USA: Constraints and Management of Pathogens and Insect Pests

et al. 2016

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Soybean is the most produced and consumed oil seed crop worldwide. In 2013, 226 million metric tons were produced in over 70 countries. Organically produced soybean represents less than 0.1% of total world production. In the USA, the certified organic soybean crop was grown on 53 thousand ha or 0.17% of the total soybean acreage in the USA (32 million ha) in 2011. A gradual increase in production of organically grown soybean has occurred since the inception of organic labeling due to increased human consumption of soy products and increased demand for organic soybean meal to produce organic animal products. Production constraints caused by pathogens and insect pests are often similar in organic and non-organic soybean production, but management between the two systems often differs. In general, the non-organic, grain-type soybean crop are genetically modified higher-yielding cultivars, often with disease and pest resistance, and are grown with the use of synthetic pesticides. The higher value of organically produced soybean makes production of the crop an attractive option to some farmers. This article reviews production and uses of organically grown soybean in the USA, potential constraints to production caused by pathogens and insect pests, and management practices used to reduce the impact of these constraints.

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Section: Soybean Rustmentioning

confidence: 99%

Organically Grown Soybean Production in the USA: Constraints and Management of Pathogens and Insect Pests

et al. 2016

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“…P. pachyrhizi is an invasive fungal disease that can signiÞcantly reduce soybean yield (Kawuki et al 2003, Miles et al 2003. In the absence of P. pachyrhizi, inconsistent but positive yield responses are possible with the application of fungicide (Hanna et al 2008) through control of various (or multiple) fungal pathogens present in North America soybean (Dashiell and Akem 1991).…”

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confidence: 99%

Probability of Cost-Effective Management of Soybean Aphid (Hemiptera: Aphididae) in North America

Johnson

O’Neal

Ragsdale

et al. 2009

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Soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), is one of the most damaging pests of soybean, Glycine max (L.) Merrill, in the midwestern United States and Canada. We compared three soybean aphid management techniques in three midwestern states (Iowa, Michigan, and Minnesota) for a 3-yr period (2005)(2006)(2007). Management techniques included an untreated control, an insecticidal seed treatment, an insecticide fungicide tank-mix applied at flowering (i.e., a prophylactic treatment), and an integrated pest management (IPM) treatment (i.e., an insecticide applied based on a weekly scouting and an economic threshold). In 2005 and 2007, multiple locations experienced aphid population levels that exceeded the economic threshold, resulting in the application of the IPM treatment. Regardless of the timing of the application, all insecticide treatments reduced aphid populations compared with the untreated, and all treatments protected yield as compared with the untreated. Treatment efficacy and cost data were combined to compute the probability of a positive economic return. The IPM treatment had the highest probability of cost effectiveness, compared with the prophylactic tank-mix of fungicide and insecticide. The probability of surpassing the gain threshold was highest in the IPM treatment, regardless of the scouting cost assigned to the treatment (ranging from $0.00 to $19.76/ha). Our study further confirms that a single insecticide application can enhance the profitability of soybean production at risk of a soybean aphid outbreak if used within an IPM based system. Keywords IPM, break-even analysis, gain threshold Disciplines Agriculture | Entomology CommentsThis article is from Journal of Economic Entomology 102 (6) ABSTRACT Soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), is one of the most damaging pests of soybean, Glycine max (L.) Merrill, in the midwestern United States and Canada. We compared three soybean aphid management techniques in three midwestern states (Iowa, Michigan, and Minnesota) for a 3-yr period (2005Ð2007). Management techniques included an untreated control, an insecticidal seed treatment, an insecticide fungicide tank-mix applied at ßow-ering (i.e., a prophylactic treatment), and an integrated pest management (IPM) treatment (i.e., an insecticide applied based on a weekly scouting and an economic threshold). In 2005 and 2007, multiple locations experienced aphid population levels that exceeded the economic threshold, resulting in the application of the IPM treatment. Regardless of the timing of the application, all insecticide treatments reduced aphid populations compared with the untreated, and all treatments protected yield as compared with the untreated. Treatment efÞcacy and cost data were combined to compute the probability of a positive economic return. The IPM treatment had the highest probability of cost effectiveness, compared with the prophylactic tank-mix of fungicide and insecticide. The probability of surpassing the gain threshold was highe...

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“…A review article summarized the use of foliar fungicides to control soybean rust, primarily in Asia, before 2003 (Miles et al 2003b). Between 2002 and 2005, coordinated fungicide efficacy trials were conducted in both South America and southern Africa that tested curative and protectant products and their mixtures, along with single and multiple applications to evaluate products, rates, and the number of applications needed to control soybean rust and maintain soybean yields (Miles et al 2007).…”

Section: Soybean Rust Managementmentioning

confidence: 99%

From Select Agent to an Established Pathogen: The Response to Phakopsora pachyrhizi (Soybean Rust) in North America

et al. 2015

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The pathogen causing soybean rust, Phakopsora pachyrhizi, was first described in Japan in 1902. The disease was important in the Eastern Hemisphere for many decades before the fungus was reported in Hawaii in 1994, which was followed by reports from countries in Africa and South America. In 2004, P. pachyrhizi was confirmed in Louisiana, making it the first report in the continental United States. Based on yield losses from countries in Asia, Africa, and South America, it was clear that this pathogen could have a major economic impact on the yield of 30 million ha of soybean in the United States. The response by agencies within the United States Department of Agriculture, industry, soybean check-off boards, and universities was immediate and complex. The impacts of some of these activities are detailed in this review. The net result has been that the once dreaded disease, which caused substantial losses in other parts of the world, is now better understood and effectively managed in the United States. The disease continues to be monitored yearly for changes in spatial and temporal distribution so that soybean growers can continue to benefit by knowing where soybean rust is occurring during the growing season.

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Current status of soybean rust control by fungicides

Cited by 32 publications

References 0 publications

Organically Grown Soybean Production in the USA: Constraints and Management of Pathogens and Insect Pests

Organically Grown Soybean Production in the USA: Constraints and Management of Pathogens and Insect Pests

Probability of Cost-Effective Management of Soybean Aphid (Hemiptera: Aphididae) in North America

From Select Agent to an Established Pathogen: The Response to Phakopsora pachyrhizi (Soybean Rust) in North America

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