Funded Research Projects

Awards List

Research awards are listed by date funded, starting with the most recent.  Final reports are available for completed projects and were submitted as deliverables and presented at the annual June CPS Produce Research Symposium. They have not been subject to peer-review at this time. 

RFP Year
Principal Investigator

2021AFECCT: Assessing filtration efficacy for Cyclospora control$221,468Benjamin Rosenthal, S.D.USDA - ARSJitender P. Dubey, M.V.Sc., Ph.D., Mark C. Jenkins, Ph.D., Manan Sharma, Ph.D., Kalmia E. Kniel, Ph.D.1/1/2022 - 12/31/2023
2021Assessing Romaine lettuce “Forward Processing” for potential impacts on EHEC growth, antimicrobial susceptibility, and infectivity$399,743Xiangwu Nou, Ph.DUSDA - ARSYaguang Luo, Ph.D., Patricia Millner, Ph. D., Shirley Micallef, Ph.D.1/1/2022 - 12/31/2023
2021Assessing the potential for production practices to impact dry bulb onion safety$388,095Joy Waite-Cusic, Ph.D.Oregon State UniversityStuart Reitz, Ph.D., Faith Critzer, Ph.D., Tim Waters, Ph.D., Linda J. Harris, Ph.D.1/1/2022 - 12/31/2023
2021Cross-contamination risks in dry environments$208,808Nitin Nitin, Ph.D.University of California, DavisLinda J. Harris, Ph.D.1/1/2022 - 12/31/2023
2021Cyclospora cayetanensis monitoring in agricultural water$159,032Lia Stanciu-Gregory, Ph.D.Purdue UniversityAmanda Deering, Ph.D.1/1/2022 - 12/31/2023
2021Microbial characterization of irrigation waters using rapid, inexpensive and portable next generation sequencing technologies$322,942Kerry Cooper, Ph.D.University of ArizonaKelly Bright, Ph.D., Channah Rock, Ph.D., Walter Betancourt, Ph.D.1/1/2022 - 12/31/2023
2021Practical application of superheated steam to harvesting, processing, and produce packing tools and equipment$396,178Abby Snyder, Ph.D.Cornell UniversityV.M. Balasubramaniam, Ph.D.1/1/2022 - 12/31/2023
2021Quantifying risk associated with changes in EHEC physiology during post-harvest pre-processing stages of leafy green production$328,442Teresa Bergholz, Ph.D.Michigan State UniversityJade Mitchell, Ph.D.1/1/2022 - 12/31/2023
2021Strategic approaches to mitigate Salmonella contamination of bulb onions$408,522Vijay Joshi, Ph.D.Texas A&M AgriLife ResearchCastillo Alejandro, Ph.D., Daniel Leskovar, Ph.D., Subas Malla, Ph.D.1/1/2022 - 12/31/2023
2021Survival of Listeria monocytogenes and Salmonella on surfaces found in the dry packinghouse environment and effectiveness of dry-cleaning processes on pathogen reduction$190,272Paul L. Dawson, Ph.D.Clemson UniversityClaudia Ionita, Ph.D., Kay Cooksey, Ph.D.1/1/2022 - 12/31/2022
2021Towards a holistic assessment of the food-safety risks imposed by wild birds$370,123Daniel Karp, Ph.D.University of California, DavisJeffery McGarvey, Ph.D.1/1/2022 - 12/31/2023
2021Validation study for the tree-fruit industry: effective strategies to sanitize harvest bins and picking bags$262,648Valentina Trinetta, Ph.D.Kansas State UniversityFaith Critzer, Ph.D., Umut Yucel, Ph.D., Manreet Bhullar, Ph.D., Londa Nwadike, Ph.D.1/1/2022 - 12/31/2023
2020Application of ultra-fine bubble technology to reduce Listeria monocytogenes contamination of fresh produce$53,647Abhinav Upadhyay, Ph.D.University of Connecticut1/1/2021 - 12/31/2021
2020Bio-based antimicrobial coatings for reducing risk of cross-contamination during harvesting$307,872Nitin Nitin, Ph.D.University of California, DavisGlenn Young, Ph.D., Gang Sun Ph.D.1/1/2021 - 12/31/2022
2020Control of Listeria monocytogenes in processing/packing plants using antimicrobial blue light (aBL)$139,645Francisco Diez-Gonzalez, Ph.D.University of GeorgiaGovindaraj Dev Kumar, Ph.D.1/1/2021 - 12/31/2021
2020CPS Rapid Response - Investigation of potential preharvest and postharvest treatments targeting Salmonella spp. risk reduction on peach in Australia$82,901Kim-Yen Phan-Thien, Ph.D.The University of Sydney1/1/2021 - 6/30/2021
2020Determination of physical and chemical mechanisms to prevent Cyclospora infection$394,853Scott C. Lenaghan, Ph.D.University of TennesseeQixin Zhong, Ph.D.1/1/2021 - 12/31/2022
2020Digital farm-to-facility food safety testing optimization$220,621Matthew Stasiewicz, Ph.D.University of Illinois at Urbana-ChampaignFaith Critzer, Ph.D.1/1/2021 - 12/31/2022
2020Evaluating food safety challenges of blueberry harvesting$196,435Jinru Chen, Ph.D.University of GeorgiaWeiqiang Yang, Ph.D., Eric Smith, Ph.D.1/1/2021 - 10/31/2022
2020Field evaluation of microfluidic paper-based analytical devices for microbial source tracking$390,670Mohit Verma, Ph.D.Purdue UniversityAaron Ault1/1/2021 - 12/31/2022
2020Identification of quantitative and qualitative patterns of environmental contamination by Listeria spp. and L. monocytogenes in fresh produce processing facilities and evaluation of practical control measures able to eliminate transient and persistent co$256,468Ana Allende, Ph.D.CEBAS-CSIC Campus de Espinardo, SpainMaria I. Gil, Ph.D., Pilar Truchado, Ph.D.1/1/2021 - 12/31/2022
2020Survival of infectious human norovirus in water and on leafy greens $199,570Malak Esseili, Ph.D.University of Georgia1/1/2021 - 12/31/2022
2020Understanding and predicting food safety risks posed by wild birds$384,994Nikki Shariat, Ph.D.University of GeorgiaWilliam E. Snyder, Ph.D., Laurel L. Dunn, Ph.D. 1/1/2021 - 12/31/2022
2020Using low-cost smartphone-based infrared cameras to evaluate cooling and storage conditions of fresh produce$41,882Kevin E. Mis Solval, Ph.D.University of GeorgiaGovindaraj Dev Kumar, Ph.D.1/1/2021 - 12/31/2021
2020Validation of sanitizer disinfection of wash water in dump tank operation of apple packing lines$340,269Meijun ZhuWashington State UniversityFaith Critzer, Ph.D.1/1/2021 - 12/30/2022
2020Waxing of whole produce and its involvement in and impact on microbial food safety$229,536Luxin Wang, Ph.D.University of California, DavisLinda J. Harris, Ph.D.1/1/2021 - 12/31/2022
2020When the E. coli hits the fan! Evaluating the risks of dust-associated produce cross-contamination$193,378Kelly R. Bright, Ph.DUniversity of ArizonaWalter Q. Betancourt, Ph.D., Charles P. Gerba, Ph.D., Govindaraj Dev Kumar, Ph.D., Laurel Dunn, Ph.D.1/1/2021 - 12/31/2022
2019Agriculture Water Treatment – Southwest Region $206,305Channah Rock, Ph.D.University of ArizonaKerry Cooper, Ph.D., Alex Castillo, Ph.D., Veerachandra Yemmireddy, Ph.D.11/1/2019 - 4/30/2021
2019Analysis of the presence of Cyclospora in waters of the Mid-Atlantic States and evaluation of removal and inactivation by filtration$49,170Kalmia Kniel, Ph.D.University of Delaware1/1/2020 - 12/31/2020
2019CPS Rapid Response - Yuma Valley$81,472Channah Rock, Ph.D.University of Arizona1/2/2019 - 5/31/2019
2019Cyclospora prevalence in irrigation water in fresh produce growing regions$167,633Gerardo Lopez, Ph.D.University of Arizona1/2/2019 - 12/31/2019
2019Environmental microbial risks associated with vented produce in distribution centers$317,563Laurel Dunn, Ph.D.University of Georgia1/1/2020 - 12/31/2020
2019Factors affecting persistence of Listeria monocytogenes need to be identified for evaluation and prioritization of interventions.$180,493Martin Wiedmann, Ph.DCornell UniversityRenata Ivanek, Ph.D.1/1/2020 - 12/31/2020
2019Listeria develops reduced sanitizer sensitivity but not resistance at recommended sanitizer use levels$187,874Martin Wiedmann, Ph.DCornell University1/1/2020 - 12/31/2020
2019Managing time-temperature risk in fresh produce using predictive models for Listeria$7,200Donald Schaffner, Ph.D.Rutgers1/1/2019 - 5/31/2019
2019Occurrence and accumulation of potentially infectious viruses in process water and impact of water disinfection practices to minimize viral cross-contamination$310,304Gloria Sánchez Moragas, Ph.D.Institute of Agrochemistry and Food Technology of the Spanish Council for Scientific ResearchAna Allende, Ph.D.; Maria I. Gil, Ph.D.1/1/2020 - 12/31/2021
2019Possibility, duration, and molecular predictors of sanitizer tolerance in Listeria monocytogenes$186,733Xiangyu Deng, Ph.D.University of GeorgiaHenrik C. den Bakker, Ph.D.1/1/2020 - 12/31/2021
2019Post-Harvest Fresh Produce Wash Water Disinfection by Submerged Cold Plasma Non-Chemical Continuous Treatment System$302,776Alexander Fridman, Ph.D.Drexel UniversityGregory Fridman, Jasreen Sekhon, Christopher Sales, Alexander Rabinovich1/1/2020 - 12/31/2021
2019Produce surface treatments based on bacteriophages and bacteriocin-producing cultures to consistently reduce 2-log of Listeria monocytogenes on leafy greens and pre-cut fruit and vegetables$281,404Ana Allende, Ph.D.CEBAS-CSIC Campus de Espinardo, SpainMaria I. Gil1/1/2020 - 12/31/2021
2019Sources and prevalence of Cyclospora cayetanensis in Southeastern US water sources and growing environments$339,903Mia Mattioli, Ph.D.Centers for Disease Control and PreventionAndrew Luiz Biscaia Ribeiro da Silva, Ph.D.; Amy Kahler, Ph.D.; Mike Arrowood, Ph.D.1/1/2020 - 12/31/2021
2019The prevalence of Cyclospora in water and produce$213,861Ynes Ortega, Ph.D.University of Georgia1/1/2020 - 12/31/2021
2019Verification and validation of environmental monitoring programs for biofilm control in the packinghouse$161,182Paul L. Dawson, Ph.D.Clemson UniversityClaudia Ionita, Ph.D.1/1/2020 - 12/31/2020
2018A systematic review of Listeria growth and survival on fruit and vegetable surfaces: responding to critical knowledge gaps $185,052Laura Strawn, Ph.D.Virginia Polytechnic Institute and State UniversityDonald Schaffner, Ph.D.1/1/2019 - 12/31/2019
2018Development of a model to predict the impact of sediments on microbial irrigation water quality$146,109Charles P. Gerba, Ph.DUniversity of ArizonaJennifer Duan, Ph.D.1/1/2019 - 12/31/2020
2018Exploring the relationship between product testing and risk$64,095Emma Hartnett, Ph.D.Risk Sciences International, CanadaDonald Schaffner, Ph.D.1/1/2019 - 12/31/2019
2018Fate of different Listeria monocytogenes strains on different whole apple varieties during long-term simulated commercial storage$346,054Elliot Ryser, Ph.D.Michigan State UniversityRandolph Beaudry, Ph.D., Sophia Kathariou, Ph.D.1/1/2019 - 6/30/2021
2018Identifying competitive exclusion microorganisms against Listeria monocytogenes from biological soil amendments by metagenomic, metatranscriptomic, and culturing approaches $49,888Xiuping Jiang, Ph.D.Clemson UniversityChristopher Saski, Vijay Shankar1/1/2019 - 12/31/2019
2018Illuminating the role of whole genome sequencing in produce safety$85,044Kerry Cooper, Ph.D.University of Arizona1/1/2019 - 12/31/2020
2018Listeria monocytogenes growth potential, kinetics, and factors affecting its persistence on a broad range of fresh produce $359,968Xiangwu Nou, Ph.DUSDA - ARSYanguang Luo, Ph.D., Patricia Millner, Ph.D.1/1/2019 - 12/31/2020
2018Modeling tools for design of science-based Listeria environmental monitoring programs and corrective action strategies $199,852Renata Ivanek, Ph.D.Cornell UniversityMartin Wiedmann, Ph.D.1/1/2019 - 12/31/2019
2018Non-fouling food contact surfaces - prevention of biofilm and surface-mediated cross-contamination $272,324Boce Zhang, Ph.D.University of MassachusettsYaguang Luo, Ph.D.1/1/2019 - 12/31/2020
2018Preventive sanitation measures for Listeria monocytogenes biofilms in critical postharvest harboring sites$109,486Kay Cooksey, Ph.D.Clemson UniversityClaudia Ionita, Ph.D.1/1/2019 - 12/31/2019
2018Significance of sanitizers on induction of viable but non-cultivable (VBNC) foodborne bacteria and their survival and resuscitation in fresh produce$258,975Ana Allende, Ph.D.CEBAS-CSIC Campus de Espinardo, SpainMaria I. Gil, Ph.D., Pilar Truchado, Ph.D.1/1/2019 - 12/31/2020
2018Simulation analysis of in-field produce sampling for risk-based sampling plan development $250,470Matthew Stasiewicz, Ph.D.University of Illinois at Urbana-ChampaignMartin Wiedmann, Ph.D.1/1/2019 - 12/31/2020
2018Towards a decision-support tool for identifying and mitigating on-farm risks to food safety $290,678Daniel Karp, Ph.D.University of California, DavisKate Scow, Ph.D., Jeffery McGarvey, Ph.D.1/1/2019 - 12/31/2020
2017Application of chitosan microparticles to eliminate foodborne pathogens in agricultural water that contacts fresh produce (POC)$53,210Anita Wright, Ph.D.University of Florida1/1/2018 - 12/31/2018
2017Engineering and ecological approaches reduce Pacific tree frog intrusion into leafy green agriculture $259,222Michelle Green, Ph.D.University of South Florida St. PetersburgJonathan Warner, Ph.D., Paul Davidson, Ph.D.1/1/2018 - 12/31/2019
2017Establishment of vegetative buffer zones to reduce the risk of STEC and Salmonella transmission from animal operations to fresh produce on co-managed farms.$388,033Siddhartha Thakur, Ph.D.North Carolina State UniversityEduardo Gutierrez, Ph.D., Chris Gunter, Ph.D. 1/1/2018 - 12/31/2019
2017FSMA agricultural-water die-off compliance provisions benefit from condition-specific modifiers$399,617Renata Ivanek, Ph.D.Cornell UniversityMartin Wiedmann, Ph.D., Trevor Suslow, Ph.D., Ana Allende, Ph.D., Daniel Munther, Ph.D.1/1/2018 - 12/31/2019
2017Identifying optimal methods of recovering bacteria from food processing plants for downstream microbiome analyses (POC) - Project not completed.$35,859Edward G. Dudley, Ph.D.Penn StateLuke LaBorde, Ph.D.1/1/2018 - 12/31/2018
2017Listeria whole genome sequence data reference sets are needed to allow for improved persistence assessment and source tracking $356,975Martin Wiedmann, Ph.DCornell University1/1/2018 - 12/31/2019
2017Mathematical modeling tools for practical chlorine control in produce wash process$47,847Daniel Munther, Ph.D.Cleveland State UniversityParthasarathy Srinivasan, Ph.D., Chandrasekhar Kothapalli, Ph.D.1/1/2018 - 12/31/2018
2017Metagenomics to identify viral indicators in the produce chain$297,560Gloria Sánchez Moragas, Ph.D.Institute of Agrochemistry and Food Technology of the Spanish Council for Scientific ResearchJesus Rodriguez Diaz, Ph.D.1/1/2018 - 12/31/2019
2017Preservation of stone fruits by spray application of edible coatings with antimicrobial properties$98,528Kay Cooksey, Ph.D.Clemson UniversityClaudia Ionita, Ph.D.1/1/2018 - 12/31/2018
2017Rechargeable antimicrobial and antifouling plastics for improved cleaning and sanitation of plastic bins and totes$281,967Nitin Nitin, Ph.D.University of California, DavisGang Sun, Ph.D., Glenn Young, Ph.D.1/1/2018 - 12/31/2019
2017Scientifically valid corrective actions for multiple harvest shade-house production systems $253,269Trevor Suslow, Ph.D.University of California, Davis1/1/2018 - 12/31/2019
2017The effects of storage conditions and the microbiome of non-traditional salad ingredients on the fate of Listeria monocytogenes$361,405Amanda Lathrop, Ph.D.California Polytechnic State University, San Luis ObispoJay Singh, Ph.D., Kaushik Saha, Ph.D., Christopher Kitts, Ph.D.1/1/2018 - 12/31/2019
2017UA Ag Water app-language expansion and practical grower-inspired improvements$32,386Channah Rock, Ph.D.University of ArizonaNatalie Brassill, Ph.D.1/1/2018 - 12/31/2018
2017Use of raptors to prevent wild bird and rodent intrusion into fresh produce fields$377,556Paula Rivadeneira, Ph.D.University of Arizona1/1/2018 - 12/31/2019
2016 RRExpanded Sampling and Mitigation Strategy Evaluation for Cadmium in Desert Spinach$24,978Charles Sanchez, Ph.D.University of Arizona1/10/2016 - 7/9/2016
2016Characterization and mitigation of bacteriological risks associated with packing fresh-market citrus$166,437Linda J. Harris, Ph.D.University of California, Davis1/1/2017 - 12/31/2018
2016Control of Listeria monocytogenes on apple through spray manifold-applied antimicrobial intervention$290,000Meijun ZhuWashington State UniversityDr. Trevor Suslow, UC Davis1/1/2017 - 12/31/2018
2016Cyclospora: Potential Reservoirs and Occurrence in Irrigation Waters$305,641Gerardo Lopez, Ph.D.University of ArizonaPaula Rivadeneira, Ph.D, Kelly Bright, Ph.D, Charles P. Gerba, Ph.D, Walter Betancourt, Ph.D, University of Arizona1/1/2017 - 12/31/2018
2016Detection, validation, and assessment of risks implied by the viable but non-culturable (VBNC) state of enteric bacterial pathogens in fresh produce$200,000Xiaonan LuUniversity of British ColumbiaPascal Delaquis, Susan Bach, Jeff Farber, Summerland Research and Development Center1/1/2017 - 12/31/2018
2016Developing Cross-Assembly Phage as a Viral Indicator for Irrigation Waters$143,236Kyle Bibby, Ph.D.University of Notre Dame1/1/2017 - 12/31/2018
2016Establishment of operating standards for produce wash systems through the identification of specific metrics and test methods$225,725Ana Allende, Ph.D.CEBAS-CSIC Campus de Espinardo, SpainMaria I. Gil, Ph.D.1/1/2017 - 12/31/2018
2016Listeria monocytogenes growth and survival on peaches and nectarines as influenced by stone fruit packing house operations, storage and transportation conditions.$94,410Mary Anne Amalaradjou, Ph.D.University of Connecticut1/1/2017 - 12/31/2017
2016Remotely-sensed and field-collected hydrological, landscape and weather data can predict the quality of surface water used for produce production$349,998Martin Wiedmann, Ph.DCornell UniversityChannah Rock, University of Arizona1/1/2017 - 12/31/2018
2016Resolving postharvest harborage sites of Listeria protects Zone 1 surfaces $358,132Trevor Suslow, Ph.D.University of California, DavisAdrian Sbodio, Staff Research Associate II, Janneth Pinzon-Avila, Project Assistant Specialist1/1/2017 - 6/30/2019
2016Significance of the dormant state in the persistence, interaction with growing plants and virulence of Shiga Toxin producing Escherichia coli $72,140Keith Warriner, Ph.D.University of GuelphDr. Suresh Neethirajan, University of Guelph1/1/2017 - 12/31/2017
2015 RRThe Effects of Soil Remediation Treatments on Microbial Populations Following an Extreme Flooding Event (Rapid Response)$10,626James Scott MonroePurdue University7/27/2015 - 12/31/2015
2015Comparative genomics analysis and physiological assessment of the avirulent Salmonella surrogate relevant to produce safety$110,494Julie Meyer, Ph.D.University of FloridaMarcos de Moraes, University of Florida/IFAS1/1/2016 - 12/31/2017
2015Control of Cross-Contamination during Field-pack and Retail Handling of Cantaloupe$217,066Laura Strawn, Ph.D.Virginia Polytechnic Institute and State UniversityMichelle Danyluk, Ph.D. University of Florida, Ben Chapman, Ph.D. North Carolina State University1/1/2016 - 12/31/2017
2015Establishing Die-off Rates of Surrogate and Virulent EHEC-STEC Strains from Strawberry and Cilantro Surfaces: Time, Inoculum Dose and Chemical Intervention - Proof of Concept$50,000Eduardo Gutierrez-Rodriguez, Ph.D.North Carolina State UniversityChris Gunter, Ph.D, Sid Thakur, Ph.D, Carole Saravitz, Ph.D, North Carolina State University1/1/2016 - 12/31/2016
2015Evaluation of sanitizing treatments for sizer carriers in stone fruit packinghouses$100,062Steven Pao, Ph.D.California State University, FresnoErin Dormedy, Ph.D., California State University, Fresno1/1/2016 - 12/31/2016
2015Evaluation of the efficacy of antimicrobial agents to prevent the transfer of Listeria monocytogenes from existing biofilms to produce or processing surfaces$107,048Rolf Joerger, Ph.D.University of DelawareGordon C. Johnson, Ph.D, University of Delaware1/1/2016 - 12/31/2017
2015Factors that influence the introduction, fate and mitigation of foodborne pathogens on mangoes throughout the production chain$135,218Michelle Danyluk, Ph.DUniversity of FloridaAnita C. Wright, Ph.D, University of Florida1/1/2016 - 12/31/2017
2015Identification of novel indicator organisms to determine the risks of fecal contamination of irrigation waters$234,921Kelly R. Bright, Ph.DUniversity of ArizonaLuisa A. Ikner, Ph.D., University of Arizona1/1/2016 - 12/31/2017
2015Methods for the detection of diverse parasites on packaged salads based on (viable) oocysts $223,907Stefan Wuertz, Ph.D.University of California, Davis1/1/2016 - 12/31/2017
2015Microbial food safety risks of reusing tail water for leafy green production$162,695Michael Cahn, Ph.D.University of California Cooperative Extension, Monterey CountyLinda Harris, Ph.D. University of California, Steven Koike, University of California Cooperative Extension, Monterey County1/1/2016 - 12/31/2017
2015Pathogen physiological state has a greater effect on outcomes of challenge and validation studies than strain diversity$274,750Martin Wiedmann, Ph.DCornell University1/1/2016 - 12/31/2017
2015Validating a physically heat-treated process for poultry litter in industry settings using the avirulent Salmonella surrogates or indicator microorganisms$193,921Xiuping Jiang, Ph.D.Clemson UniversityAnnel Greene, Ph.D, Clemson University1/1/2016 - 12/31/2017
2014Contamination of leafy green crops with foodborne pathogens: Are wildlife a problem?$197,429Alan Franklin, Ph.D.USDA-APHIS-WSSarah N. Bevins, Ph. D., USDA-APHIS-WS1/1/2015 - 12/31/2015
2014Demonstration of practical, effective and environmentally sustainable agricultural water treatments to achieve compliance with microbiological criteria$260,675Ana Allende, Ph.D.CEBAS-CSIC Campus de Espinardo, SpainMaria I. Gill, Ph.D., CEBAS-CSIC Campus de Espinardo, Spain1/1/2015 - 12/31/2016
2014Enteric viruses as new indicators of human and cattle fecal contamination of irrigation waters$219,879Kelly R. Bright, Ph.DUniversity of ArizonaMarc P. Verhougstraete, Ph.D., University of Arizona1/1/2015 - 12/31/2016
2014Evaluation of an alternative irrigation water quality indicator$334,252Trevor Suslow, Ph.D.University of California, DavisChannah Rock, Ph.D., University of Arizona1/1/2015 - 12/31/2016
2014Evaluation of falconry as an economically viable co-management strategy to deter nuisance birds in leafy green fields$49,336Michele Jay-Russell, Ph.D.University of California, DavisTrevor Suslow, Ph.D., University of California, Davis1/1/2015 - 12/31/2015
2014Impact of wash water disinfectants on Salmonella enterica transfer and survival in mango packing facility water tank operations$142,166Mary Anne Amalaradjou, Ph.D.University of Connecticut1/1/2015 - 12/31/2016
2014Improved sampling and analytical methods for testing agricultural water for pathogens, surrogates and source tracking indicators$298,462Vincent Hill, Ph.D.United States Centers for Disease Control and PreventionGeorge Vellidis, Ph.D., University of Georgia1/1/2015 - 12/31/2016
2014Improving pasteurization validation methods for pistachio processing$279,859Bradley Marks, Ph.D.Michigan State UniversityLinda J. Harris, Ph.D., University of California, Davis1/1/2015 - 12/31/2016
2014Investigation of risk criteria and foodborne pathogen reduction practices for irrigation water$152,344Steven Rideout, Ph.D.Virginia Polytechnic Institute and State UniversityRenee Boyer, Ph.D., Virginia Tech1/1/2015 - 12/31/2015
2014Optimal strategies for monitoring irrigation water quality and the development of guidelines for the irrigation of food crops$117,202Marc Verhougstraete, Ph.D.University of ArizonaKelly R. Bright, Ph.D., University of Arizona1/1/2015 - 12/31/2015
2014Rapid bacterial testing for on-farm sampling$272,208Sam Nugen, Ph.D.University of Massachusetts1/1/2015 - 12/31/2016
2014Rapid tests to specifically differentiate clinically significant from environmental STEC towards reducing unnecessary crop destruction$329,481Trevor Suslow, Ph.D.University of California, DavisMichele Jay-Russell, Ph.D., University of California, Davis1/1/2015 - 12/31/2016
2014Towards preventing internalization and persistence of human bacterial pathogens in fresh produce$40,025Maeli Melotto, Ph.D.University of California, Davis1/1/2015 - 12/31/2015
2014Validation of chlorine level in sanitization system to avoid cross-contamination$161,947Qin Wang, Ph.D.University of Maryland1/1/2015 - 12/31/2016
2013Assessing postharvest food safety risks and identifying mitigation strategies for foodborne pathogens in pistachios$230,185Linda J. Harris, Ph.D.University of California, Davis1/1/2014 - 12/31/2015
2013Does Salmonella move through the irrigation systems of mixed produce farms of the southeastern United States?$371,782/George Vellidis, Ph.D.University of GeorgiaMichele Jay-Russell1/1/2014 - 12/31/2015
2013Does splash from overhead sprinkler irrigation systems contaminate produce with Salmonella in the southeastern United States?$81,864/George Vellidis, Ph.D.University of GeorgiaKaren Levy7/1/2013 - 6/30/2014
2013Effectiveness of a batch ozonated retail wash system for iceberg lettuce.$10,000Trevor Suslow, Ph.D.University of California, Davis10/15/2013 - 1/31/2014
2013Effect of physiochemical and biological parameters on survival, persistence and transmission of norovirus in water and on produce$324,403Melissa Jones, Ph.D.University of FloridaStephanie Karst1/1/2014 - 12/31/2015
2013Enhancement of forced-air cooling to reduce Listeria monocytogenes, Salmonella and/or total surface microbiota on cantaloupes$49,740Changqing Wu, Ph.D.University of Delaware1/1/2014 - 12/31/2014
2013Evaluation of multiple disinfection methods to mitigate the risk of produce contamination by irrigation water$280,483John Buchanan, Ph.D.University of TennesseeFaith Critzer1/1/2014 - 12/31/2015
2013Evaluation of pathogen survival in fresh water sediments and potential impact on irrigation water quality sampling programs$50,000Kristen Gibson, Ph.D.University of Arkansas1/1/2014 - 12/31/2014
2013Evaluation of risk-based water quality sampling strategies for the fresh produce industry $150,745Channah Rock, Ph.D.University of ArizonaCharles P. Gerba1/1/2014 - 12/31/2015
2013Feasibility of using nitric oxide donors to disperse biofilms of industrial significance to strengthen the efficacy of current industrial disinfectants$49,951Massimiliano Marvasi, Ph.D.University of FloridaEric S. McLamore1/1/2014 - 12/31/2014
2013Food safety risks at the fresh produce-animal interface: identifying pathogen sources and their movement on diversified farms$274,693Siddhartha Thakur, Ph.D.North Carolina State UniversityEduardo Gutierrez1/1/2014 - 12/31/2015
2013Remediation and recovery measures to expedite planting or replanting of vegetables following soil contamination by Salmonella enterica$376,225Trevor Suslow, Ph.D.University of California, DavisRobyn McConchie1/1/2014 - 12/31/2015
2013Selection of E. coli surrogates with attachment and survival patterns similar to those of human pathogens associated with produce$236,330Kimberly Cook, Ph.D.USDA - ARSCarl Bolster1/1/2014 - 12/31/2015
2013Survival of generic E. coli and Salmonella during the growth, curing, and storage of dry bulb onions produced with contaminated irrigation water$68,460Joy Waite-Cusic, Ph.D.Oregon State University7/1/2013 - 6/30/2014
2013Transfer and survival of organisms to produce from surface irrgation water$72,589Faith Critzer, Ph.D.University of TennesseeJohn Buchanan7/1/2013 - 6/30/2014
2013Use of zero valent iron (ZVI) in irrigation of tomatoes with manure-contaminated water at varying E. coli levels$68,777Kalmia Kniel, Ph.D.University of Delaware7/1/2013 - 6/30/2014
2013Validation of geospatial algorithms to predict the prevalence and persistence of pathogens in produce fields to improve GAPs$291,023Martin Wiedmann, Ph.DCornell UniversityRandy Worobo1/1/2014 - 12/31/2015
2012Assessment of sanitation techniques for tree fruit storage bins$171,313Karen Killinger, Ph.D.Washington State University1/1/2013 - 12/31/2014
2012Avirulent Salmonella strains and their use to model behavior of the pathogen in water, composts, in and on vegetables$217,273Max Teplitski, Ph.D.University of FloridaM. McClelland, M. Danyluk1/1/2013 - 12/31/2014
2012Die-off rates of human pathogens in manure amended soil under natural climatic conditions using novel sentinel chamber system$128,491Keith Warriner, Ph.D.University of GuelphA. Huber1/1/2013 - 12/31/2014
2012Evaluation of the level of white-tailed deer fecal colonization by E. coli O157:H7 and the ecological role of dung beetles with the pathogen in produce farms$50,000Vivian C.H. Wu, Ph.D.University of MaineF. Drummond, M.S. Jones1/1/2013 - 12/31/2013
2012Genomic elucidation of the physiological state of enteric pathogens on pre-harvest lettuce$280,071Martin Wiedmann, Ph.DCornell University1/1/2013 - 2/28/2015
2012Novel coating systems with sustained release of food antimicrobials to improve safety of cantaloupe$231,485Qixin Zhong, Ph.D.University of TennesseeP.M. Davidson, F. Critzer1/1/2013 - 12/31/2014
2012Practical validation of surface pasteurization of netted melons$244,770Trevor Suslow, Ph.D.University of California, DavisA. Tomas Callejas1/1/2013 - 2/28/2015
2012Rapid assessment of oxidative stress induced in microbes to evaluate efficacy of sanitizers in wash water$128,758Nitin Nitin, Ph.D.University of California, DavisG. Young, M. McCarthy, R. Tikekar1/1/2013 - 12/31/2014
2012Reducing the risk for transfer of zoonotic foodborne pathogens from domestic and wild animal to vegetable crops in the southwest desert$252,777Michele Jay-Russell, Ph.D.University of California, DavisA. Justice-Allen1/1/2013 - 12/31/2014
2012Science-based evaluation of risks associated with wildlife exposure for contamination of irrigation water by Salmonella $99,323Anita Wright, Ph.D.University of FloridaM. Jay-Russell1/1/2013 - 1/31/2014
2011Apple growing and packing microbial risk factors and their potential to lead to foodborne disease outbreaks.$133,614Richard Pleus, Ph.D.Intertox, Inc.1/1/2012 - 12/31/2013
2011Assessment of E. coli as an indicator of microbial quality of irrigation waters use for produce.$84,580Channah Rock, Ph.D.University of ArizonaC. Gerba, K. Bright1/1/2012 - 12/31/2012
2011Comparative assessment of field survival of Salmonella enterica and E. coli O157:H7 on cilantro (Coriandrum sativum) in relation to sequential cutting and re-growth.$96,729Trevor Suslow, Ph.D.University of California, Davis1/1/2012 - 12/31/2012
2011Distribution of Salmonella in pistachios and development of effective sampling strategies.$192,984Linda J. Harris, Ph.D.University of California, DavisR. Atwill1/1/2012 - 12/31/2013
2011DNA-based identification of foliar microbiota with potential to predict or preclude pathogen establishment on field-grown leafy greens $96,973Johan Leveau, Ph.D.University of California, Davis1/1/2012 - 12/31/2013
2011Evaluation of sampling protocol to provide science-based metrics for use in identification of Salmonella in irrigation water testing programs in mixed produce farms in the Suwannee River watershed.$254,888/George Vellidis, Ph.D.University of GeorgiaK. Levy1/1/2012 - 12/31/2013
2011Glucosinolate-derived compounds as a green manure for controlling E. coli O157:H7 and Salmonella in soil$175,229Jitu Patel, Ph.D.USDA - ARSM. Sharma1/1/2012 - 2/28/2014
2011Identifying causative factors contributing to positive leafy green samples. (rapid response)$25,000Diane WetheringtonIDS (Intertox Decision Sciences)8/1/2012 - 12/31/2013
2011Microbial food safety on-farm risk assessment. (rapid response)$10,000Trevor Suslow, Ph.D.University of California, Davis8/1/2011 - 12/31/2011
2011On-farm evaluation of the prevalence of human enteric bacterial pathogens during the production of melons in California$7,500Trevor Suslow, Ph.D.University of California, Davis3/1/2012 - 9/30/2012
2011Sanitization of soft fruits with ultraviolet (UV-C) light.$78,470Xuetong Fan, Ph.D.USDA - ARSJ. Gurtler, K. Killinger1/1/2012 - 3/31/2013
2011Sources and mechanisms of transfer of Salmonella in the production and postharvest tree nut environment.$317,320Linda J. Harris, Ph.D.University of California, DavisM. Jay-Russell1/1/2012 - 2/28/2014
2011The role of riparian zones in bacteria dispersal to produce farms.$319,316Martin Wiedmann, Ph.DCornell University1/1/2012 - 3/31/2014
2011Toward a rapid and reliable pathogen detection system in produce.$152,591Jianghong Meng, Ph.D.University of Maryland1/1/2012 - 12/31/2013
2011Validating Salmonella inactivation during thermal processing of the physically heat-treated chicken litter as soil amendment and organic fertilizer.$147,344Xiuping Jiang, Ph.D.Clemson UniversityJ. Kim1/1/2012 - 1/31/2014
2011Validation of testing methods for the detection and quantification of E. coli O157:H7, Salmonella spp., fecal coliforms and non-pathogenic E. coli in compost.$121,015Manan Sharma, Ph.D.USDA - ARSJ. Patel1/1/2012 - 12/31/2012
2010Developing and validating practical strategies to improve microbial safety in composting process control and handling practices.$296,368Xiuping Jiang, Ph.D.Clemson University1/1/2011 - 2/28/2013
2010Developing a program to educate the walnut supply chain as it pertains to product handling and safety.$95,454Devon Zagory, Ph.D.Devon Zagory & AssociatesP. Pimentel1/1/2011 - 2/29/2012
2010Developing buffer zone distances between sheep grazing operations and vegetable crops to maximize food safety.$169,575Bruce R. Hoar, Ph.D.University of California, DavisD. Henderson, R. Atwill1/1/2011 - 12/31/2011
2010Enhancing the efficacy of fresh produce washing operations through establishing monitoring methods and water disinfection technologies based on a combination of filtration and UV.$101,325Keith Warriner, Ph.D.University of Guelph1/1/2011 - 12/31/2012
2010Evaluation of amphibians and reptiles as potential reservoirs of foodborne pathogens and risk reduction to protect fresh produce and the environment.$142,523Michele Jay-Russell, Ph.D.University of California, DavisX. Li, R. Atwill, R. Mandrell1/1/2011 - 12/31/2011
2010Evaluation of the baseline levels of microbial pathogens on Washington state fresh market apples and mitigation measures used to eliminate contamination.$58,885Diane WetheringtonIDS (Intertox Decision Sciences)1/1/2011 - 12/31/2011
2010Escherichia coli O157:H7 in bioaerosols from cattle production areas: evaluation of proximity and airborne transport on leafy green crop contamination.$296,360Elaine D. Berry, Ph.D.USDA - ARSJ. Wells1/1/2011 - 12/31/2012
2010Influence of the pre-harvest environment on the physiological state of Salmonella and its impact on increased survival capability.$96,935Linda J. Harris, Ph.D.University of California, DavisL. Wang1/1/2011 - 12/31/2012
2010Investigation of E.coli survival on contaminated crop residue.$118,000Steven KoikeUniversity of California Cooperative Extension, Monterey CountyM. Cahn1/1/2011 - 12/31/2012
2010Investigation of potential reservoirs of shiga toxin-producing E. coli and Salmonella in produce production areas of Arizona and Mexico. (rapid response)$70,567Michele Jay-Russell, Ph.D.University of California, Davis10/5/2010 - 4/30/2011
2010Irrigation regime, fruit water congestion and produce safety: parameter optimization to reduce susceptibility of tomatoes and peppers to post-harvest contamination, pathogen transfer and proliferation of Salmonella.$188,271Max Teplitski, Ph.D.University of FloridaJ. Bartz, G. Hochmuth1/1/2011 - 12/31/2012
2010Non invasive imaging approaches to evaluate potential infusion of pathogens during vacuum cooling of lettuce leaves and real time dynamics of microbes on leaf tissues as a function of moisture content.$45,008Nitin Nitin, Ph.D.University of California, Davis1/1/2011 - 1/31/2012
2010Pathogen transfer risks associated with specific tomato harvest and packing operations.$117,445Michelle Danyluk, Ph.DUniversity of FloridaK. Schneider1/1/2011 - 12/31/2012
2010Rapid testing of flume water organic load to better assess the efficacy of free chlorine against Escherichia coli O157:H7 during commercial lettuce processing.$70,104Elliot Ryser, Ph.D.Michigan State University1/1/2011 - 2/29/2012
2010Risk assessment of Salmonella preharvest internalization in relation to irrigation water quality standards for melons and other cucurbits.$92,285Trevor Suslow, Ph.D.University of California, Davis1/1/2011 - 1/31/2012
2010Science-based evaluation of regional risks for Salmonella contamination of irrigation water at mixed produce farms in the Suwannee River watershed.$313,513Anita Wright, Ph.D.University of FloridaA. Van Bruggen, P. Adams, M. Danyluk10/1/2010 - 1/31/2013
2010Survival, transfer, and inactivation of Salmonella on plastic materials used in tomato harvest.$235,787Lynne McLandsborough, PhDUniversity of MassachusettsJ. Goddard, W. Autio1/1/2011 - 2/28/2013
2010The likelihood of cross‐contamination of head lettuce by E. coli O157:H7, Salmonella and norovirus during hand harvest and recommendations for glove sanitizing and use.$330,541Jennifer L. Cannon, Ph.D.University of GeorgiaM. Erickson, M. Habteselassie1/1/2011 - 12/31/2012
2009A high-throughput, culture-independent approach to identify index and indicator species for E. coli O157:H7 contamination.$182,205Gitta L. Coaker, Ph.D.University of California, DavisJ. Leveau, T. Suslow4/1/2009 - 3/31/2010
2009Assessing postharvest risks for Salmonella in pistachios.$244,805Linda J. Harris, Ph.D.University of California, Davis10/1/2009 - 6/30/2012
2009Comparison of surrogate E. coli survival and epidemiology in the phyllosphere of diverse leafy green crops.$125,000Trevor Suslow, Ph.D.University of California, DavisS. Koike, R. Smith, M. Cahn4/1/2009 - 3/31/2010
2009Contribution of phyllosphere microbiota to the persistence of Escherichia coli O157:H7 ATCC 700728 on field-grown lettuce.$50,800Maria Marco, Ph.DUniversity of California, DavisL. Harris4/1/2009 - 3/31/2010
2009Differential susceptibility of spinach grown under slow- and fast-growth conditions to enteric bacterial contamination.$84,063Astri Wayadande, Ph.DOklahoma State UniversityJ. Fletcher, F. Ochoa-Corona10/1/2009 - 9/30/2011
2009Epidemiologic analysis and risk management practices for reducing E. coli in irrigation source water supplies and distribution systems.$300,000Edward R. Atwill, Ph.D.University of California, DavisL. Harris, M. Jay-Russell, K. Tate10/1/2009 - 9/30/2011
2009Establishment of critical operating standards for chlorine dioxide in disinfection of dump tank and flume water for fresh tomatoes.$48,747Trevor Suslow, Ph.D.University of California, DavisM. Danyluk10/1/2009 - 9/30/2010
2009Evaluation and optimization of postharvest intervention strategies for the reduction of bacterial contamination on tomatoes$293,240Keith Schneider, Ph.D.University of FloridaR. Goodrich-Schneider, Y. Luo, S. Sargent10/1/2009 - 10/31/2011
2009Fly reservoirs of E. Coli O157:H7 and their role in contamination of leafy greens.$50,800Astri Wayadande, Ph.DOklahoma State UniversityTalley, J.4/1/2009 - 3/31/2010
2009Food safety risks associated with sheep grazing in vegetable stubble fields.$83,000Bruce R. Hoar, Ph.D.University of California, DavisM. Trent4/1/2009 - 3/31/2010
2009 Impact of almond moisture, almond cultivar and Salmonella Serovar on the desiccation, persistence and heat resistance of Salmonella in almonds.$82,401Linda J. Harris, Ph.D.University of California, Davis10/1/2009 - 9/30/2011
2009Improving produce safety by stabilizing chlorine in washing solutions with high organic loads.$243,909Yaguang Luo, Ph.DUSDA - ARSD. Shelton, P. Millner, X. Nou10/1/2009 - 9/30/2011
2009Minimizing pathogen transference during lettuce harvesting by optimizing the design of the harvesting device and operation practices.$103,125Yaguang Luo, Ph.DUSDA - ARSH. Feng, P. Millner4/1/2009 - 3/31/2010
2009Mitigation of irrigation water using zero-valent iron treatment.$236,790Kalmia Kniel, Ph.D.University of DelawareD. Hoover10/1/2009 - 9/30/2011
2009Persistence and detection of norovirus, Salmonella, and pathogenic Escherichia coli on basil and leafy greens.$125,000Dallas Hoover, Ph.D.University of DelawareK. Kniel-Tolbert, J. Patel, M. Sharma12/1/2009 - 11/30/2012
2009Reducing tomato contamination with Salmonella through cultivar selection and maturity at harvest.$60,771Max Teplitski, Ph.D.University of FloridaJ. Noel10/1/2009 - 9/30/2010
2009Science-based monitoring for produce safety: Comparing indicators and pathogens in water, soil and crops.$178,700Osnat Gillor, Ph.D.Ben-Gurion University of the NegevN. Bernstein, P. Conrad, W. Miller, K. Shapiro, S. Wuertz12/31/2009 - 1/31/2013
2009Survival of attenuated Escherichia coli O157:H7 ATCC 700728 in field inoculated lettuce.$49,151Linda J. Harris, Ph.D.University of California, Davis4/1/2009 - 3/31/2010
2009Survival of E. coli on soil amendments and irrigation water in leafy green field environments.$112,100Steven KoikeUniversity of California Cooperative Extension, Monterey CountyM. Cahn10/1/2009 - 9/30/2010
2009Using Leafy Green Marketing Agreement audit data to determine non-compliance areas and preparation of training and recommendations for improvements in future growing seasons.$133,540Diane WetheringtonIDS (Intertox Decision Sciences)G. Bruce, S. Leaman11/1/2009 - 6/30/2012
2009Wildlife survey for E. coli O157:H7 in the central coastal counties of California$300,000Andrew GordusCalifornia Department of Fish and GameE.R. Atwill, R. Mandrell10/1/2009 - 11/30/2011
2008A sensitive and specific molecular testing method for live Salmonella in produce.$46,500Beilei Ge, Ph.D.Louisiana State UniversityJ. Beaulieu1/1/2009 - 12/31/2009
2008Enhancing the effectiveness of human pathogen testing systems for the advancement of practical produce safety research and commercial management.$148,023Carol D'lima, Ph.D.University of California, DavisT. Suslow1/1/2009 - 12/31/2009
2008Environmental effects on the growth or survival of stress-adapted Escherichia coli 0157:H7 and Salmonella spp. in compost.$222,098Xiuping Jiang, Ph.D.Clemson UniversityJ. Kim, F. Luo1/1/2009 - 12/31/2009
2008Examination of the survival and internalization of E.coli on spinach under field production environments.$142,790Steven KoikeUniversity of California Cooperative Extension, Monterey CountyM. Cahn, T. Suslow1/1/2009 - 12/31/2009