Raghuwinder (Raj) Singh

Associate Professor & Director, Plant Diagnostic Center

Contact
434 Life Sciences Bldg
Baton Rouge, LA 70894
Phone: (225) 578-4562
Fax: (225) 578-1415
Email: RSingh@agcenter.lsu.edu

Raguwinder-Singh-Headshot

D.P.M., Doctor of Plant Medicine, University of Florida, FL, USA, 2004.

M.Sc. Crop Protection, University of Reading, Reading, United Kingdom, 2001.

B.Sc. Agriculture, Honor's in Plant Protection, Punjab Agricultural University, Ludhiana, Punjab, India, 1999

  • 100% Extension.
  • Horticulture Pathology Extension Specialist (Fruits and Nuts, Ornamentals, Vegetables, Trees, Turfgrass, Forestry and Christmas Trees)
  • Director, LSU AgCenter Plant Diagnostic Center.
  • Plant Diagnostics and Management; diagnose plant problems caused by biotic and abiotic causes and their management.
  • July 2018 - Present Associate Professor and Director, Plant Diagnostic Center, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, Louisiana.
  • July 2013 - June 2018 Assistant Professor and Director, Plant Diagnostic Center, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, Louisiana.
  • July 2008 - June 2013 Instructor (Diagnostician), Plant Diagnostic Center, Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, LA.
  • March 2007 - June 2008 Extension Associate (Diagnostician), Department of Plant Pathology and Crop Physiology, Louisiana State University Agricultural Center, Baton Rouge, LA.
  • February 2005 - February 2007 Post-Doctoral Research Associate, Department of Entomology & Nematology, University of Florida, Gainesville, FL.
  • October 2004 - January 2005 Research Assistant, Department of Plant Pathology, University of Florida, Gainesville, FL.
  • October 2002 - August 2004 Graduate Assistant, Plant Disease Clinic, University of Florida, Gainesville, FL.
  • September 2001 - September 2002 Research Assistant, Department of Plant Pathology, University of Florida, Gainesville, FL.
  • PLHL 8900 Plant Health Diagnostic Internship, Summer Semester.
  • Plant Health Diagnostic Internship, Fall and Spring Semester.
  • Participate in Teaching PLHL 8800 Plant Pathology Practicum.
  • Guest Lecture; PLHL 7054 Mycology, PLHL 7011 Phytobacteriology, PLHL 7040 Plant Virology, PLHL 4001 Plant Disease Management and Control, PLHL 4000 General Plant Pathology, Hort 4090 Golf Course Maintenance, Hort 2022 Installation & Maintenance of Ornamentals in the Landscape II, and Hort 4085 Fruit and Nut Production.
  • Teach plant diagnostics to Louisiana Master Gardeners.
  • Extension educational programs and training to Agricultural and Natural Resource Agents
  • American Phytopathological Society (APS), Member 2007-present
  • Entomological Society of America, Member 2007-2009
  • APS Diagnostic Committee Chair 2013, Vice Chair 2012
  • APS Plant Pathogen and Disease Detection Committee, Chair 2015, Member 2007-present
  • APS Extension Committee, Member 2013-present
  • Senior Editor, Plant Health Progress Journal (APS)
  • Southeast U.S. Vegetable Working Group, Member 2014-present
  • Southern Small Fruit Consortium, Member 2018-present
  • Southern Division of APS, Member 2007-present
  • National Plant Diagnostic Network, Member 2007-present
  • Southern Plant Diagnostic Network, Member 2007-present
  • Southern Plant Diagnostic Network Advisory Council, Chair 2011
  • National Clean Plant Network, Tier II governing body, Member 2013-present
  • Citrus Clean Plant Network, Center Director Louisiana 2014-present
  • Louisiana State Horticulture Society, Member 2007-present
  • Louisiana Fruit and Vegetable Grower Association, Member 2013-present
  • Louisiana Nursery and Landscape Association, Member 2007-present
  • Louisiana Citrus Growers Association, Board Member 2019-present
  • Louisiana County Agricultural Agents Association, Member 2007-present
  • Chair-Search for Excellence Committee LSU AgCenter Horticulture Extension Committee, Member 2017-present
  • National Agricultural County Agent Association, Member 2007-present
  • Gamma Sigma Delta, LSU AgCenter, Member 2015-present
  • Epsilon Sigma Phi, Louisiana State University, Member 2016-2019
  • 2020 IPM Educator Award, Southern IPM Center Friends of IPM.
  • National Early Career Professional Award, Epsilon Sigma Phi Extension Professional Society, Wilmington, North Carolina. October 10, 2017.
  • Early Career Professional Award, Epsilon Sigma Phi Extension Professional Society, Hammond, Louisiana. June 6, 2017.
  • Honorary Membership, Louisiana Nursery and Landscape Association, Mobile, Alabama. January 19, 2017.
  • Search for Excellence in Commercial or Consumer Horticulture Award National Finalist, National Association of County Agricultural Agents, Little Rock, Arkansas. July 25, 2016.
  • Faculty Distinguished Achievement in Agricultural Award, Gamma Sigma Delta Honor Society, Baton Rouge, Louisiana. April 29, 2016.
  • National Agricultural County Agent Association Achievement Award. Sioux Falls, SD. July 12, 2015.
  • Louisiana County Agriculture Agent Association Achievement Award. Monroe, LA. June 2, 2015.
  • LSU AgCenter Floyd Edmiston Award for excellence in planning, implementing and evaluating extension educational programs. Baton Rouge, LA. December 15, 2014.
  • Education Excellence Award. New Orleans Spring Garden Show, New Orleans, LA. April 6, 2013.
  • Honorary Mention for the Plant Health Clinic at the New Orleans Spring Garden Show, New Orleans, LA. April 2, 2011.
  • Honorary Mention for the Plant Health Clinic at the New Orleans Spring Garden Show, New Orleans, LA. April 11, 2010.
  • Awarded Certificate of Appreciation for Outstanding Services in Support of the Plant Biosecurity Symposium, Southern University and A & M College, Baton Rouge, LA. November 12, 2009.
  • Student Travel Award, Southern Division of American Phytopathological Society Annual Meeting, Tulsa, OK. February 17, 2004.
  • Doctor of Plant Medicine Fellowship, University of Florida, Gainesville, FL. 2001-2002.
  • National Merit Scholarship, Punjab, India

Current ($251,521)
 

  • $39,000 Southern Plant Diagnostic Network, National Plant Diagnostic Network for the Food and Agriculture Initiative, USDA-NIFA.
  • $55,061 The Continental USA, Hawaii and Puerto Rico Citrus Clean Plant Network, National Clean Plant Network, USDA-NIFA.
  • $44,500 Develop an Effective Management Program for Fireblight and Rust Diseases in Mayhaw production. USDA-AMS Specialty Crop Grant Administered by Louisiana Department of Agriculture and Forestry.
  • $25,000 Sudden Oak Death Survey
  • $12,960 A Regional Approach to Cucurbit Downy Mildew, Prevention, Monitoring and Management, USDA Specialty Crop Management Project
  • $75,000 LSU AgCenter Plant Diagnostic Center Diagnostic Fee Revenue

Previous ($893,812)

From 2008 to 2016 (National Plant Diagnostic Network, $225,000; Citrus and Insect Disease Cooperative Agriculture Pest Survey, 100,000; Louisiana Specialty Crop Grant, $61,650; Agriculture and Food Research Initiative, $51,435; Revenue Generated from Plant Samples, $52,000; Citrus Clean Plant Network, $20,900; PDC Internship Sponsored by Dr. Grady Coburn, $5,000).

Ferguson, M. H., Singh, R., Cook, M., and Burks, T. 2020. Geographic distribution and host range of lethal bronzing associated with phytoplasma subgroup 16SrIV-D on palms in southern Louisiana. Plant Health Prog. (Accepted for publication).
Singh, R. 2020. Specialty crop plant diseases on the rise in Louisiana. Louisiana Agriculture 63 (1): 10-14.
Gochez, A., Behlau, F., Singh, R., Ong, K., Whilby, L., and Jones, J. 2020. Panorama of citrus canker in the United States. Tropical Plant Pathology 45: 192-199. https://doi.org/10.1007/s40858-020-00355-8
Price, T., Valverde, V., Singh, R., Davis, J., Sebe. B., and Jones, H. 2020. First report of Cotton leafroll dwarf virus in Louisiana. Plant Health Prog. 21 (2): 142-143.
Ferguson, M. H., and Singh, R. 2018. First Report of Lethal Yellowing Associated with Phytoplasma Subgroup 16SrIV-A on Silver Date Palm and Chinese Windmill Palm in Louisiana. Plant Dis. 102 (10): 2018.
Garcia-Aroca, T., Doyle, V., Singh, R., Price, T., and Collins, K. 2018. First Report of Curvularia leaf spot Caused by Curvularia lunata on Corn in the United States. Plant Health Prog. 19 (2): 140-142.
Sharma, S., A. Z. Zaccaron, J.B. Ridenour, Tom Allen, Kassie Conner, Vinson P. Doyle, Trey Price, Edward Sikora, Raghuwinder Singh, Terry Spurlock, Maria Tomaso-Peterson, Tessie Wilkerson, and Burt H. Bluhm. 2018. Draft genome sequence of Xylaria sp., the causal agent of taproot decline of soybean in Southern United States. Data in Brief 17: 129-133.
Singh, R., and Ferguson, M. H. 2017. First Report of a 'Candidatus Phytoplasma palmae'-related Subgroup 16SrIV-D Phytoplasma on Trachycarpus fortunei. Australian Plant Dis. Notes 12: 59.
Singh, R., and Vinson, D. 2017. Boxwood Dieback caused by Colletotrichum theobromicola: A Diagnostic Guide. Plant Health Prog. 18 (3): 174-180.
Allen, T., Bluhm, B., Connor, K., Doyle, V., Price, T., Singh, R., Spurlock, T., Tomaso-Peterson, M., Sikora, E., and Wilkerson, T. 2017. First Description of the Causal Agent of Taproot Decline of Soybean, an Emerging Disease in the Southern United States. Plant Health Prog. 18 (1): 35-40.
Singh, R., Valverde, R., Cook, M., and Owings, A. 2016. First Report of Rose Rosette Disease caused by Rose rosette virus on Knock Out Roses in Louisiana. Plant Health Prog. 17 (3): 195-196.
Price, T., Singh, R., and Fromme, D. 2015. First Report of Target Spot Caused by Corynespora cassiicola in Louisiana Cotton. Plant Health Progress Vol. 16 (4): 223-224.
Singh, R., Price, T., Pagett, B., and Burks, T. 2015. First Report of Sudden Death Syndrome of Soybean Caused by Fusarium virguliforme in Louisiana. Plant health Progress Vol. 16 (4): 163-164.
Singh, R., Graney, L., and Williamson, M. 2015. First Report of Boxwood Dieback caused by Colletotrichum theobromicola in the United States. Plant Dis. Vol. 99 (9): 1274.
Singh, R., Hollier, C., Burks, T., and Frazier, R. 2015. First Report of Goss's Wilt Caused by Clavibacter michiganensis subsp. nebraskensis in Louisiana. Plant Dis. Vol. 99 (9): 1268.
Hollier, C., and Singh, R. 2014. Goss's Wilt: A new Corn Disease in Louisiana. Louisiana Agriculture Vol. 57 (3): 28.
Singh, R. 2014. Citrus canker and its impact on Louisiana's citrus industry. Louisiana Agriculture Vol. 57 (1): 30-31.
Guan, W., Shao, J., Singh, R., Davis, R., and Huang, Q. 2013. A TaqMan-based real time PCR assay for specific detection and quantification of Xylella fastidiosa strains causing bacterial leaf scorch in oleander. Journal of Microbiological Methods Vol. 92: 108-112.
da Silva, W., and Singh, R. 2012. First report of Alternaria alternata causing leaf spot on Aloe vera in Louisiana. Plant Dis. Vol. 96 (9): 1379.
Singh, R., and Ferrin, D. 2012. First report of stem and foliar blight of sunflower caused by Alternariaster helianthi in Louisiana. Plant Dis. Vol. 96 (5): 761.
Valverde, R., Singh, R., and Sabanadzovic, S. 2012. Detection and identification of Clerodendron golden mosaic China virus in Salvia splendens. Eur J Plant Pathol Vol. 133 (3): 499-503.
Singh, R., Castro, A., Ferrin, D., Harris, R., and Olson, B. 2011. First report of Fusarium wilt of Canary Island date palm caused by Fusarium oxysporum f. sp. canariensis in Louisiana. Plant Dis. Vol. 95 (9): 1192.
Singh, R., Ferrin, D., and Huang, Q. 2010. First report of Xylella fastidiosa associated with oleander leaf scorch in Louisiana. Plant Dis. Vol. 94 (2): 274.
Hoy, M. A., Singh, R., and Rogers, M. E. 2010. Evaluation of a novel isolate of Isaria fumosoroea for control of the Asian citrus psyllid, Diaphorina citri (Hemiptera: Psyllidae). Florida Entomologist Vol. 93 (1): 24-32.
Singh, R., Ferrin, D., and Aime, M. C. 2009. First report of powdery mildew caused by Podosphaera xanthii on Sechium edule in the United States. Plant Dis. Vol. 93 (12): 1348.
Srinivasan, R., Hoy, M. A., Singh, R., and Rogers, M. E. 2008. Laboratory and field evaluations of silwet L-77 and kinetic alone and in combination with imidacloprid and abamectin for the management of the Asian citrus psyllid, Diaphorina citri (Hemiptera: Psyllidae). Florida Entomologist Vol. 91 (1): 87-100.
Meyer, J. M., Hoy, M. A., and Singh, R. 2007. Low incidence of Candidatus Liberibacter asiaticus in Diaphorina citri (Hemiptera: Psyllidae) populations between Nov 2005 and Jan 2006: Relevance to management of citrus greening disease in Florida. Florida Entomologist Vol. 90 (2): 394-397.
Hoy, M. A., Singh, R., and Rogers, M. E. 2007. Citrus leafminer, Phyllocnistis citrella (Lepidoptera: Gracillaridae), and natural enemy dynamics in central Florida during 2005. Florida Entomologist Vol. 90 (2): 358-369.
Singh, R., and Hoy, M. A. 2007. Tools for evaluating Lipolexis oregmae (Hymenoptera: Aphidiidae) in the field: Effects of host aphid and host plant on mummy location and color plus improved methods for obtaining adults. Florida Entomologist Vol. 90 (1): 214-222.
Meyer, J. M., Hoy, M. A., Singh, R., and Rogers, M. E. 2007. Friendly fungi killing psyllids in Florida citrus. Citrus Industry Vol. 88 (5): 23.

Southeastern United States Vegetable and Fruit Handbooks

2021 Southeastern US Vegetable Crop Handbook (contributing author).
2021 Southeast Regional Blueberry Integrated Management Guide (contributing author).
2021 Southeast Regional Strawberry Integrated Pest Management Guide for Plasticulture Production (contributing author).

Louisiana State University Agricultural Center Publications

Padgett, B., Singh, R., Brown, K. P., Clark, C., Price, P., Hoy, J. W., Groth, D. E., Ferguson, M. H., and Overstreet, C. 2020. Louisiana Plant Disease Management Guide. LSU AgCenter Publication 1802.
Singh, R. 2020. Southern Blight of Industrial Hemp. Louisiana Plant Pathology Disease Identification and Management Series. LSU AgCenter Publication 3760.
Singh, R., and DeSouza, M. 2020. Boxwood Crown and Root Rot. Louisiana Plant Pathology Disease Identification and Management Series. LSU AgCenter Publication 3748.
Melanson, R., Wintermantel, W., Sikora, E., and Singh, R. 2020. A Photo Guide to Whitefly Transmitted and Yellow Viruses in Watermelon and Other Cucurbit Crops. Mississippi State University Publication 3440.
Melanson, R., Wintermantel, W., Sikora, E., and Singh, R. 2020. Whitefly-transmitted and Yellowing Viruses in Watermelon and Other Cucurbit Crops. Mississippi State University Publication 3439.
Fontenot, K., Kirk-Ballard, H., Strahan, R., Sexton, M. Singh, R., Ring, D. 2020. Herb Gardening in Louisiana. LSU AgCenter Publication 3721.
Singh, R. Fields, J., Willis, J., and Timmerman, A. 2020. Citrus Diseases in Louisiana. LSU AgCenter Publication MISC-341.
Fontenot, K., Sexton, M., Lee, D., Miller, K., Afton, W., Willis, J., Strahan, R., Singh, R., and Ring, D. 2019. Blackberry Growing Guide. LSU AgCenter Publication 1553.
Singh, R., Strahan, R., Fontenot, K., Ferguson, M., Khanal, C., Burks, T., and Melhado, S. 2019. Integrated Pest Management in Tabasco Pepper Seed Production. LSU AgCenter Publication MISC-321A.
Singh, R., Strahan, R., Fontenot, K., Ferguson, M., Khanal, C., Burks, T., and Melhado, S. 2019. Integrated Pest Management in Tabasco Pepper Seed Production. LSU AgCenter Publication MISC-321B.
Singh, R., and Lord, N. 2019. Plant Health Diagnostics Training Manual. LSU AgCenter Publication Misc-322.
Fontenot, K., Singh, R., Sebe, B., Sexton, M., Ring, D. 2018. Vegetable Gardening Tips: Watermelon. LSU AgCenter Publication 3643.
Singh, R. Wilson, M., Owings, A., and Windham, M. 2018. Rose Rosette Disease Identification and Management. LSU AgCenter Publication Misc-278.
Singh, R., Beasely, J., and Sanders, K. 2018. Dollar Spot. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-V.
Singh, R., Beasely, J., and Sanders, K. 2018. Fairy Ring. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-W.
Singh, R., Beasely, J., and Sanders, K. 2018. Gray Leaf Spot. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-X.
Singh, R., Beasely, J., and Sanders, K. 2018. Large Patch. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-Y.
Singh, R., Beasely, J., and Sanders, K. 2018. Slime Molds. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-Z.
Singh, R., Beasely, J., and Sanders, K. 2018. St. Augustine Decline. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-AA.
Singh, R., Beasely, J., and Sanders, K. 2018. Take All Root Rot. Louisiana Home Lawn Series. A Guide to Maintaining a Healthy Louisiana Lawn. LSU AgCenter Publication 3624-BB.
Singh, R. 2017. Lethal Yellowing of Palms. Louisiana State University Agricultural Center Publication 3618.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Alliums", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2318.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Cole Crops", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2310.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Beans", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2309.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Chinese Cabbage", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2153.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Sweet Corn", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2152.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Peppers", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2132.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Squash and Pumpkin", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 2054.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Eggplant", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 1986.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Cucumber", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 1981.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Irish Potato", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 1903.
Fontenot, K., Sexton, M., Singh, R., Brown, S., Strahan, R., and Koske, T. 2016. "Tomato", Vegetable Gardening Tips, Growing Information for the Home Gardener Series. Louisiana State University Agricultural Center, Publication 1902.
Singh, R. Owings, A., Morgan, A., and Vaughn, A. 2016. Home Citrus Production Guide. Louisiana State University Agricultural Center Publication 1234 (revised).
Singh R. 2015. Plant Diagnostic Center Serves Louisiana. Louisianan Agriculture Vol. 58 (4): 26.
Singh, R., Owings, A., and Morgan, J. 2015. Rose Disease Found for First Time in Louisiana. Louisiana Agriculture Vol. 58 (4): 27.
Singh, R. 2015. Bacterial Gall on Loropetalum. Louisiana State University Agricultural Center Publication 3479.
Singh, R. 2015. Fusarium Wilt of Canary Island Date Palm. Louisiana State University Agricultural Center Publication 3472.
Singh, R. 2015. Take-All Root Rot. Louisiana State University Agricultural Center Publication 3161 (revised).
Singh, R. 2015. Ball Moss. Louisiana State University Agricultural Center Publication 3481.
Singh, R. 2015. Lichens. Louisiana State University Agricultural Center Publication 3423.
Singh, R., and Roussel, C. 2015. Bitter Rot of Apples. Louisiana State University Agricultural Center Publication 3420.
Singh, R. 2015. Sweet Olive Leaf Scorch. Louisiana State University Agricultural Center Publication 3368.
Co-author, 2015. Plant Disease Management Guide. Louisiana State University Agricultural Center Publication 1802.
Co-author, 2014. Louisiana Home Vegetable Gardening. Louisiana State University Agricultural Center Publication 3000.
Singh, R., and Owings, A. 2014. Boxwood Blight. Louisiana State University Agricultural Center Publication 3361.
Singh, R. 2014. Citrus Greening. Louisiana State University Agricultural Center Publication 3359.
Singh, R. 2014. Sweet Basil Downy Mildew. Louisiana State University Agricultural Center Publication 3358.
Singh, R., and Owings, A. 2014. Rose Rosette Disease. Louisiana State University Agricultural Center Publication 3355.
Singh, R. 2014. Plant Diagnostic Center 2012 and 2013 Progress Report. Louisiana State University Agricultural Center Publication Misc-107.
Co-author, 2014. Plant Disease Management Guide. Louisiana State University Agricultural Center Publication 1802.
Singh, R. 2014. Texas Phoenix Palm Decline Louisiana State University Agricultural Center Publication 3351.
Singh, R. 2013. Citrus Canker. Louisiana State University Agricultural Center Publication 3269.
Singh, R. 2012. Plant Diagnostic Center Report 2010 and 2011. Louisiana State University Agricultural Center Publication MISC-90.
Singh, R. 2012. Chapter 4, the Plant Diagnostic Center; in the Plant Disease Management Guide. Louisiana State University Agricultural Center Publication 1802.
Singh, R., and Ferrin, D. 2011. Sweet Orange Scab and Citrus Scab Disease Identification Card. Louisiana State University Agricultural Center Publication 3215.
Singh, R., and Ferrin, D. 2011. Plant Diagnostic Center Brochure. LSU AgCenter Publication MISC-41.
Singh, R., and Ferrin, D. 2011. Rapid Turfgrass Diagnostics Brochure. Louisiana State University Agricultural Center Publication -42.
Singh, R. 2011. Plant Diagnostic Center Report 2009 and 2010. Louisiana State University Agricultural Center Publication.
Singh, R., and Ferrin, D. 2010. Powdery Mildew of Mirliton. Louisiana State University Agricultural Center Publication 3181.
Singh, R., and Ferrin, D. 2010. Oleander Leaf Scorch. Louisiana State University Agricultural Center Publication 3144.
Overstreet, C., McGawley, E. C., Hollier, C. A., Ferrin, D., and Singh, R. 2010. Strategies for Sampling Plant-Parasitic Nematodes in Field Crops. Louisiana State University Agricultural Center Publication 3143.
Ferrin, D., and Singh, R. 2009. Leaf and Crown Rot of Liriope. Louisiana State University Agricultural Center Publication.
Singh, R. 2009. Plant Disease Diagnostic Clinic report 2007 and 2008. Louisiana State University Agricultural Center Publication.

Singh, R. 2020. Take All Patch. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 71: 25
Singh, R. 2020. Slime Mold in Louisiana Landscapes and Lawns. LSU AgCenter Horticulture Hints. Fall 2020.
Singh, R. 2020. Slime Mold in Louisiana Landscapes and Lawns. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 70: 21.
Singh, R. 2020. Plant Disease Management in Home Vegetable Gardens. LSU AgCenter Horticulture Hints. Summer 2020.
Singh, R. 2020. Large Patch in Louisiana Lawns. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 69: 27.
Singh, R. 2020. Exobasidium Leaf Gall of Camellia and Azalea. LSU AgCenter Horticulture Hints. Spring 2020.
Singh, R. 2019. Boxwood Diseases in Louisiana Landscapes and Gardens. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 68: 24-25
Singh, R. 2019. Boxwood Diseases in Louisiana Landscapes and Gardens. LSU AgCenter Horticulture Hints, December 2019.
Singh, R. 2019. Lethal Bronzing and Lethal Yellowing of Chinese Windmill Palm in Louisiana. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 67: 21.
Singh, R. 2019. Entomosporium Leaf Spot of Indian Hawthorn. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 66: 20.
Singh, R. 2019. Large Patch-The Most Common Lawn Disease in Louisiana. LSU AgCenter Horticulture Hints, June 2019.
Singh, R. 2019. Integrated management of Boxwood dieback in Louisiana Nurseries and Landscapes. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 65: 25.
Singh, R. 2019. Southern Bacterial Wilt of Solanaceous Vegetables. LSU AgCenter 5 Acres or Fewer Farm News, Volume 1 (2): 7.
Singh, R. 2019. Phytophthora root and crown rot management in Louisiana Landscapes. LSU AgCenter Horticulture Hints, February 2019.
Singh, R. 2018. Integrated Vegetable Disease Management in Urban Farms, LSU AgCenter 5 Acres or Fewer Farm News, Volume 1 (1): 10-11.
Singh, R. 2018. Citrus canker. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 64: 26.
Singh, R. 2018. Citrus canker. LSU AgCenter Ornamental Update November 2018.
Singh, R. 2018. Bacterial Leaf Scorch of Landscape Trees and Woody Ornamentals. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 63: 24.
Singh, R. 2018. Bacterial Leaf Scorch of Landscape Trees and Woody Ornamentals. LSU AgCenter Horticulture Hints, September 2018. 
Singh, R. 2018. Bacterial Leaf Scorch of Landscape Trees and Woody Ornamentals. LSU AgCenter Ornamental Update August 2018.
Singh, R. 2018. Armillaria Root Rot of Woody Ornamental, Fruits and Trees. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 62: 22.
Singh, R. 2018. Exobasidium leaf gall. LSU AgCenter Horticulture Hints, summer 2018.
Singh, R. 2018. Chinese windmill palm, a new host of date palm lethal decline. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 61: 28.
Singh, R. 2018. Common Plant Disorders in Home Vegetable Gardens. LSU AgCenter Horticulture Hints, spring 2018.
Singh, R. 2018. Deadly Palm Disease Detected in Louisiana. Louisiana State Horticulture Society Newsletter Volume 13: 22-23.
Singh, R. 2017. Lethal Yellowing of Palms. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 60: 23.
Singh, R. 2017. Lethal Yellowing of Palms Detected in Louisiana. LSU AgCenter Horticulture Hints, winter 2017.
Singh, R. 2017. Entomosporium Leaf Spot. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 59: 19.
Singh, R. 2017. How to Differentiate Boxwood Dieback caused by Colletotrichum theobromicola from other important diseases and disorders of Boxwood. LSU AgCenter Horticulture Field Day Handbook. October 11, 2017.
Singh, R. 2017. How to Manage Phytophthora in Commercial Landscape. LSU AgCenter Horticulture Field Day Handbook. October 11, 2017.
Singh, R. 2017. Plant Disease Management in Home Vegetable Gardens. LSU AgCenter Horticulture Hints, fall 2017.
Singh, R. 2017. Management of Phytophthora aka Plant Destroyer in Louisiana Landscapes. LSU AgCenter Ornamental Update Monthly Newsletter. September 9, 2017.
Singh, R. 2017. Southern bacterial wilt and southern blight of tomatoes, bell peppers and eggplants. LSU AgCenter Horticulture Hints, summer 2017,
Singh, R. 2017. Citrus Diseases and Quarantine Update. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 58: 19.
Singh, R. 2017. Recognizing and Managing Diseases in the Home Vegetable Garden, Louisiana State Horticulture Society Newsletter Volume 7: 9-11.
Singh, R. 2017. Large Patch. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 57: 14.
Singh, R. 2016. Phytophthora Root and Crown Rot Management in Landscapes. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 56: 12.
Singh, R. 2016. Ball Moss. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 55: 10.
Singh, R. 2016. Fatal Diseases of Palm in Louisiana. Louisiana Nursery and Landscape Special Industry Outreach, Education, Marketing News, July-August 2016.
Singh, R. 2016. Exobasidium Galls of Camellia and Azalea. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 54: 10.
Singh, R. 2016. Lichens. Louisiana Nursery and Landscape Association Quarterly Newsletter, Volume 53: 12.
Singh, R., and Owings, A. 2015. Rose rosette disease confirmed in Louisiana. Louisiana State Horticulture Society Newsletter Vol. 1 (6): 5-6.
Singh, R. 2015. Loropetalum Stem Gall. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 52: 12.
Singh, R. 2015. Rose rosette disease detected in Louisiana. NPDN Newsletter Vol. 10: 6.
Singh, R. 2015. Take-all Patch. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 51: 12.
Singh, R. 2015. Boxwood Blight. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 50: 12.
Singh, R. 2015. Sweet Olive Leaf Scorch. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 49: 12.
Singh, R. 2015. New Boxwood Disease Documented in U.S. Louisiana State Horticulture Society Journal Vol. 10: 36.
Singh, R. 2014. Boxwood Dieback. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 48: 19.
Singh, R. 2014. Important New Disease Diagnosed in Boxwood. LSU AgCenter Ornamental Horticulture E-News Update. September 2014.
Singh, R. 2014. Citrus Greening. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 47: 17.
Singh, R. 2014. Rose Rosette Disease. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 46: 17.
Singh, R. 2014. Texas Phoenix Palm Decline. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 45: 17.
Singh, R., and Owings, A. 2014. Get the Facts About Rose Rosette Disease. LSU AgCenter Ornamental Horticulture E-News Update. February 2014.
Singh, R. 2014. Texas Phoenix Palm Decline Confirmed in Louisiana. National Plant Diagnostic Network Newsletter Vol. 9: 1.
Singh, R. 2014. Texas Phoenix Palm Decline Found for First Time in New Orleans. LSU AgCenter Ornamental Horticulture E-News Update. January 2014.
Singh, R. 2014. Leaf and Crown Rot of Liriope. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 44: 1.
Singh, R. 2013. Citrus Canker. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 43: 3.
Singh, R. 2013. Armillaria Root Rot of Roses. Louisiana Nursery and Landscape Association Quarterly Newsletter Vol. 42: 2.
Singh, R. 2012. Armillaria Root Rot of 'Knock Out' Roses. Tri County Rose Society Bud n Bloom Quarterly Newsletter. June, 2012.