Identification of management practices associated with pathogen contamination before harvest in the fields of production is crucial for the development of effective good agricultural practices.
A cross-sectional study was conducted to (i) determine the management associated with a positive field for practice Salmonella or Listeria monocytogenes and (ii) quantify the frequency of these pathogens in irrigation and water sources are not from the irrigation. For five weeks, 21 farms in the State of New York were visited. Management practices at the field level was recorded in 263 fields and 600 environmental samples (soil, water) were collected and examined for the presence of Salmonella and Listeria monocytogenes .
Management practices were evaluated for their association with the presence in a positive field pathogens. Salmonella and Listeria monocytogenes were detected in 6.1% and 17.5% of fields and s respectively and 11% and 30% of water samples. The majority of water samples positive for pathogens came from surface water sources are not from irrigation.
Analysis showed that the application of manure for a year increased the chances of having a positive field for Salmonella), while the presence of a buffer zone to reduce the number of wild animals in the field had an effect protective.
Irrigation (within 3 days of collection), the reported sighting of wild animals (within 3 days of collection), and work in the fields (within 7 days of the sampling,) all increased the likelihood of having a positive fields for L.monocytogenes . Our results provide new information that will help producers in the scientific evaluation of their current practices and implementation of preventive controls to reduce the risk of contamination before harvest.
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