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Posts tagged ‘delay before harvest’

US: Metrics proposed to prevent the harvest of leafy green crops exposed to floodwater contaminated with Escherichia coli

Allied and Environmental Microbiology: In this study, the suitability of the LGMA metrics for farms in the Mid-Atlantic region of the United States was evaluated. The upper end of a spinach bed (in Beltsville, MD) established on a −5% grade was flooded with water containing 6 log CFU/ml Escherichia coli to model a worst-case scenario of bacterial movement through soil. While E. coli was quickly detected at the 9-m distance within 1 day in the spring trial and within 3 days in the fall trial, no E. coli was detected on plants outside the flood zone after 14 days.

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US: Study looks at lettuce grown near livestock

The Packer: Lettuce grown too close to livestock production areas can be at greater risk of pathogen contamination. That’s the conclusion of a recent study by scientists at New York’s Clarkson University, “Bioaerosol Deposition to Food Crops near Manure Application: Quantitative Microbial Risk Assessment.”

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