Grape Cultivar by Management System Trial Performance in 2006

To identify grape cultivars adapted to Iowa, a cultivar by management system trial was established in 2002 at the ISU Horticulture Research Station (HRS) and the ISU Armstrong Research Farm (ARF) with the help of a grant from the Leopold Center of Sustainable Agriculture. Fifteen cultivars, including 10 wine and 5 seedless table cultivars, are being evaluated under 1) a conventional management system that relies on herbicides for weed control and application of insecticides and fungicides on a regular basis; 2) an IPM/best management system that uses herbicides as needed and relies on monitoring to determine the need for insecticides and fungicides; and 3) an organic approved system that relies on a straw mulch for weed control and use of organic-approved pest control strategies. This report summarizes the results for the 2006 growing season

Grape Cultivar by Management System Trial Performance in 2007

To identify grape cultivars adapted to Iowa, a cultivar by management system trial was established in 2002 at the Iowa State University (ISU) Horticulture Research Station (HRS) and the ISU Armstrong Research Farm (ARF) with a grant from the Leopold Center of Sustainable Agriculture. Fifteen cultivars, including ten wine and five seedless table cultivars, are being evaluated under 1) a conventional management system that relies on herbicides for weed control and application of insecticides and fungicides on a regular basis; 2) an IPM/best management system that uses herbicides as needed and relies on monitoring to determine the need for insecticides and fungicides; and 3) an organic approved system that relies on a straw mulch for weed control and use of organic-approved pest control strategies. This report summarizes the results for the 2007 growing season

Controle de doenças no morangueiro em diferentes sistemas de cultivo: um estudo de caso sobre a sustentabilidade

Non-observance of the inter-relationships of natural resources with the global environment has compromised the maintenance of life on earth. Neoclassic economics believes that the environmental problem can be solved by technology, and the capitalist system encourages consumerism, which contributes to the depletion of natural resources and to environmental pollution. The great challenge is to find mitigative ways to enable economic development without affecting much the environment, as usually happens. Among these ways is the alternative agriculture, based on the maintenance of soil fertility through organic fertilization, and on plant health through the use of cultural, physical, genetic and alternative methods, without using the fungicides and insecticides as in the conventional system. Specifically for diseases, the alternative control involves biological control and the use of natural extracts with antimicrobial and/or resistance-inducing properties. This study aimed at evaluating the economic viability of the alternative control of diseases in organically grown strawberry plants with the use of extracts, using information from strawberry farmers’ statements and from research. Based on cost data for strawberry production (fertilizers, irrigation, electricity, pesticides and manpower), a comparative table for disease control of strawberry plants was designed, for the following cultivation systems: conventional, organic with the use of Bordeaux mixture, and organic with the use of vegetal extract. The analysis of the information indicated that, although the cost of production had been on average 3.6 times higher in the conventional system, the income was 1.9 times higher in relation to the organic with Bordeaux mixture, but 2% lower in relation to the organic system using plant extracts. The impacts on the environment and on the farmers’ health are also discussed.A inobservância das inter-relações dos recursos naturais com o ambiente global tem comprometido a manutenção da vida na terra. A economia neoclássica acredita que o problema ambiental pode ser resolvido pela tecnologia e o sistema capitalista incentiva o consumismo, que acaba contribuindo com a exaustão dos recursos naturais, e a poluição do meio ambiente. O grande desafio está em encontrar caminhos mitigadores que possibilitem o desenvolvimento econômico, sem que afete tanto o meio como tem ocorrido. Dentro deste enfoque esta a agricultura alternativa cuja base mestra é a manutenção de fertilidade do solo, através da adubação orgânica, e da sanidade das plantas por métodos culturais, físicos, genéticos e alternativos, dispensando-se o uso dos tradicionais fungicidas e inseticidas. Especificamente paradoenças, o controle alternativo envolve o controle biológico e a utilização de extratos naturais com propriedades antimicrobiana e/ou indutora de resistência. O objetivo deste trabalho foi avaliar a viabilidade econômica do controle alternativo de doenças no morangueiro, em cultivo orgânico, pelo uso de extratos, utilizandoinformações coletadas juntamente com produtores de morangoe aquelas resultantes de trabalhos de pesquisa. A partir dos dados de custeio para produção de morango (adubação, irrigação, energia elétrica, defensivos e mão-de-obra), elaborou-se uma planilha comparativa para os sistemas de cultivo: convencional; orgânico com o uso de calda bordaleza; e orgânico com o uso de extratos vegetais, para o controle de doenças do morangueiro. A análise dessas informações indicou que, embora o custo de produção tenha sido em média 3,6 vezes maior no cultivo convencional doque nos orgânicos, a renda foi ainda 1,9 vezes maior emrelação ao orgânico com calda bordaleza, porém 2% inferiorao orgânico com extrato vegetal. Os impactos sobre o meioambiente e sobre a saúde do aplicador são discutidos

2002 Grape Cultivar Trial Performance

To identify grape cultivars adapted to Iowa, a cultivar by management system trial was established in 2002 at the Iowa State University (ISU) Horticulture Research Station (HRS) and the ISU Armstrong Research Farm (ARF) with a grant from the Leopold Center of Sustainable Agriculture. Fifteen cultivars, including ten wine and five seedless table cultivars, were being evaluated under three management systems that were discontinued in 2008. This report summarizes the cultivar performance for the 2010 growing season

Grape Cultivar by Management System Trial Performance in 2008

To identify grape cultivars adapted to Iowa, a cultivar by management system trial was established in 2002 at the Iowa State University (ISU) Horticulture Research Station (HRS) and the ISU Armstrong Research Farm (ARF) with a grant from the Leopold Center of Sustainable Agriculture. Fifteen cultivars, including 10 wine and five seedless table cultivars, are being evaluated under 1) a conventional management system that relies on herbicides for weed control and application of insecticides and fungicides on a regular basis; 2) an IPM/best management system that uses herbicides as needed and relies on monitoring to determine the need for insecticides and fungicides; and 3) an organicapproved system that relies on a straw mulch for weed control and use of organic-approved pest control strategies. In 2008, the management systems treatments were discontinued, but still influenced the results. This report summarizes the results for the 2008 growing season

2002 Grape Cultivar Trial Performance in 2009

To identify grape cultivars adapted to Iowa, a cultivar by management system trial was established in 2002 at the Iowa State University (ISU) Horticulture Research Station (HRS) and the ISU Armstrong Research Farm (ARF) with a grant from the Leopold Center of Sustainable Agriculture. Fifteen cultivars, including ten wine and five seedless table cultivars, were being evaluated under three management systems that were discontinued in 2008. This report summarizes the cultivar performance for the 2009 growing season