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   Authors
 Home>Communications>Authors>
Name: Melanie Lewis Ivey
Title: Assistant Professor
E-mail:
Department: Plant Pathology and Crop Physiology Department
Organization: LSU AgCenter
Address 1: 302 Life Sciences Bldg
Address 2: Baton Rouge, LA 70803
Phone Number: (225) 578-1464
Fax Number: (225) 578-1415

Education/Training
B.Sc. Microbiology, The University of Guelph, 1996
M.Sc. Plant Sciences, The University of Western Ontario, 1998
PhD. Plant Pathology, The Ohio State University, 2011
Areas of Specialization/Research
  1. Development and integration of economical and sustainable strategies for plant disease management and food safety practices in vegetables and other horticultural crops. 
  2. Development of effective communication and information exchange strategies, specific to horticultural producers in Louisiana and surrounding states, through the use of mental models, operation risk assessments, expert elicitations and scoping or systematic reviews.
Current Research and Extension Outreach Activities

  1. Operational risk assessment and expert elicitation of risk factors for microbial contamination in the tomato greenhouse production chain.
  2. Development of co-management sanitation practices to mitigate the risk of Xanthomonas gardneri, Clavibacter michiganensis subsp. michiganensis and Salmonella spp. in pelleted tomato seed.
  3. Development of an interactive best management practices guide for vegetable transplant production.
Awards/Grants
Lewis Ivey, M.L. and Miller, S.A., Sanitizing Tomato Seed Treatments to Address Two Emerging Trends in Ohio: Pelleted Seed and Human Pathogen-free Seed. ODA Specialty Crop Block Grant. October 1, 2013-September 31, 2015. $86384

Jasinkski, J.R., Welte, C., Lewis Ivey, M.L. ($30 000), Miller, S.A., Dorrance, A. et al. Extension Integrated Pest Management Coordination and Support Program; 2013-2016, $863154.

Miller, S.A., Xu, X., and Lewis Ivey, M.L. Reliable and sensitive detection of Clavibacter michiganensis subsp. michiganensis and Salmonella enterica in tomato greenhouse irrigation water. BC Greenhouse Growers’ Association Research Project

Growing Forward 2; 2013-2015, $77092.

Lewis Ivey, M.L. and Miller, S.A. Identification of Seed Treatments to Manage Bacterial Plant and Human Pathogens on Tomato. Ohio Vegetable and Small Fruit Research & Development Program (OVSFRDP); 2013, $3400.
Publications/Presentations/Patents

Peer Reviewed Publications (Past four years)

Lewis Ivey, M.L., Xu, X., and Miller, S.A. Leveraging management strategies for seedborne plant diseases to reduce Salmonella enterica Serovar Typhimurium incidence on tomato seed and seedlings. J. Food Prot. Submitted July 2013.

Lewis Ivey, M.L., and Miller, S.A. 2013. Assessing the Efficacy of Pre-Harvest, Chlorine-Based Sanitizers Against Human Pathogen Indicator Microorganisms and Phytophthora capsici in Non-Recycled Surface Irrigation Water. Water Research 47:4639-4651.

Lewis Ivey, M.L., and Miller, S.A. Viability staining of Phytophthora capsici propagules. Mycologia Accepted April 2013.


Luster, D., McMahon, M., Edwards, H., Boerma, B., Lewis Ivey, M., Miller, S.A. and Dorrance, A. 2012. Novel Phakopsora pachyrhizi Extracellular Proteins are Ideal Targets for Immunological Diagnostic Assays. Appl. Environ. Microbiol. 78:3890-3895.


Lewis Ivey, M.L., LeJeune, J.T., and Miller, S.A. 2012. Vegetable Producers’ Perceptions of Food Safety Hazards in the Midwestern USA. Food Control, 26:453-465.


Ma, Xing, Lewis Ivey, M.L. and Miller, S.A. 2011. First Report of Xanthomonas gardneri Causing Bacterial Spot of Tomato in Ohio and Michigan. Plant Dis. 95: 1584.


Ling, K.S., Lin, H., Lewis Ivey, M.L., Zhang, W., and Miller, S.A. 2011. First Report of ‘Candidatus Liberibacter solanacearum’ Naturally Infecting Tomatoes in the State of Mexico, Mexico. Plant Dis. 95: 1026.


Lewis Ivey, M.L., Tusiime, G., and Miller, S.A. 2010. A PCR Assay for the Detection of Xanthomonas campestris pv. musacearum in Bananas. Plant Dis. 94:109-114.


Carter, B. A., Reeder, R., Mgenzi, S.R., Kinyua, Z. M., Mbaka, J. N., Doyle, K., Maina, M., Valentine, G., Aritua, V., Lewis Ivey, M. L , Miller, S. A. and Smith, J. J. 2009. Identification of Xanthomonas vasicola (formerly X. campestris pv. musacearum), causative organism of banana xanthomonas wilt, in Tanzania, Kenya and Burundi. New Disease Reports http://www.bspp.org.uk/publications/new-disease-reports/ndr.php?id=019025

Aruscavage, D., Miller, S. A., Lewis Ivey, M. L., Lee, K., LeJeune, J.T. 2008. Survival and Dissemination of Escherichia coli O157:H7 on Physically and Biologically Damaged Lettuce Plants. J. Food Prot. 71: 2384-2333.


Baysal-Gurel F., Lewis Ivey, M.L., D., Frederick R., Czarnecki J., Miller S.A. 2008. An Immunofluorescence Assay to Detect Urediniospores of Phakopsora pachyrhizi. Plant Dis. 92: 1387-1393.


Harp T.L., Pernezny K., Lewis Ivey, M.L., Miller S.A., Kuhn P. J., and Datnoff, L. 2008. The etiology of recent pepper anthracnose outbreaks in Florida. Crop Prot. 27: 1380-1384.


Editor Reviewed Publications (Past four years)

Xu, X., Miller, S.A., and Lewis Ivey, M.L. 2013. Evaluation of the efficacy of chemical and physical seed treatments in reducing the incidence of bacterial spot on pumpkin seedlings, 2012. Plant Disease Management Reports. Report No. The American Phytopathological Society, St. Paul, MN.


Xu, X., Miller, S.A., and Lewis Ivey, M.L. 2013. Evaluation of novel seed sanitizers on fungicide efficacy against Phytophthora capsici and seedling vigor, 2012. Plant Disease Management Reports. Report No. 7 ST006. The American Phytopathological Society, St. Paul, MN.


Jasinski, J., Precheur, R.J., Miller, S.A., Lewis Ivey, M.L., and Riedel, R.M. 2012. Controlling bacterial infections on pumpkin fruit in OH with varietal resistance and bactericides, 2011. Plant Disease Management Reports. Report No. 6:V054.Miller, S.A., Mera, J.R., Baysal-Gurel, F., and Lewis Ivey, M.L. 2011. Evaluation of fungicides for the control of downy mildew and Phytophthora fruit rot of cucumber, 2010. Plant Disease Management Reports. Report No. 5:V001. The American Phytopathological Society, St. Paul, MN.

Miller, S.A., Mera, J.R., and Lewis Ivey, M.L. 2011. Evaluation of fungicides for control of Phytophthora blight and fruit rot of peppers, 2010. Plant Disease Management Reports. Report No. 5:V008. The American Phytopathological Society, St. Paul, MN.

Jasinski, J., Miller, S.A., Lewis Ivey, M.L., Precheur, R.J., Rhodes, R.M., and Riedel, R.M. 2011. Efficacy of conventional and bio-rational fungicides on cucurbit powdery mildew on pumpkin in OH, 2010. Plant Disease Management Reports. Report No. 5:V170. The American Phytopathological Society, St. Paul,

Miller, S.A., Mera, J.R., and Lewis Ivey, M.L. Evaluation of fungicides for the control of downy mildew of cucumber and melon, 2008. Plant Disease Management Reports. Report No. 3:V011. The American Phytopathological Society, St. Paul, MN.

Extension Publications

Lewis Ivey, M.L., and Miller, S.A. Innovative Tomato Bacterial Disease Factsheets. Available on-line at www.vegetablediseasefacts.comLewis Ivey, M.L., Baysal-Gurel, F., Frederick, R., Luster, D., Czarnecki, J., Dorrance, A., and Miller, S.A. 2009. Immunofluorescence Assay Detection of the Soybean Rust Pathogen. The Ohio State University Extension, Columbus, OH, Ohio State Extension Bulletin SBR-2-09.


Miller, S.A., and Lewis Ivey, M.L. 2005. Hot Water Treatment of Vegetable Seeds to Eradicate Bacterial Plant Pathogens in Organic Production Systems. The Ohio State University Extension, Columbus, OH, Ohio State Extension Bulletin HYG-3086-05.


Miller, S.A., and Lewis Ivey, M.L. 2005. Hot Water and Chlorine Treatment of Vegetable Seeds to Eradicate Bacterial Plant Pathogens. The Ohio State University Extension, Columbus, OH, Ohio State Extension Bulletin HYG-3085-05.


Lewis Ivey, M.L., and Miller, S.A. 2004. Anthracnose Fruit Rot of Pepper. The Ohio State University Extension, Columbus, OH, Ohio State Extension Bulletin HYG-3307-04.

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