Tom Evans

Education

  • Ph.D. Michigan State University, 1985, Botany and Plant Pathology
    Dissertation; Contribution of Asparagus Viruses to Michigan Asparagus Decline.
  • M.S. California State Polytechnic University, Pomona, 1977, Botany. Thesis; Cytological and Biochemical Studies of the Pericycle of Radish Seedling Roots
  • B.S. California State Polytechnic University, Pomona, 1974, Botany, Cum Laude. Outstanding Student in Botany

Current Courses

  • PLSC 140 People and Plants: Feast or Famine
  • PLSC 303 Introductory Plant Pathology
  • PLSC 616 Plant Virology

Research

  • The emphasis of Dr. Evans’ research is on the identification, etiology and control of virus and fungal diseases of vegetable and field crops. A major focus of his research is to provide a better understanding of how plants respond to infection at the cellular and molecular level. The main goal of his work is to reduce crop losses through a better understanding of epidemics and the development of resistance. Dr. Evans’ laboratory currently works on the characterization of new races of the pathogen Phytophthora phaseoli, the causal agent of downy mildew of lima bean. Additionally his group is working on the development of resistant cultivars, and is developing a better understanding of the epidemiology of the disease and chemical and cultural methods of for its control. A new focus of his program is the evolution and functional genomics of P. phaseoli.
    Study Abroad Activities

  • Dr. Evans serves as the University of Delaware’s winter study abroad program co-director for Ecuador and the Galapagos(even-numbered years)
    chagras-1
    Las Chagras, left to right Dr. Tom Evans, Dr. Cliff Keil, Dra. Rocio Bastidas and the real chagra at El Povenir in the Cotopaxi National Park.Study abroad in The Galapagos Islands (odd-numbered years)
    GroupatPinnacleRock
    Pinnacle Rock 2005

Professional Experience

  • 2014 Visiting Professor, Department of Biology, Pontifical Catholic University of Ecuador
  • 2014 Visiting Professor, Department of Life Sciences, University of Siena, Italy.
  • 2007 to Professor of Botany and Plant Pathology, Department of Plant and Soil Sciences, present University of Delaware. Applied research on diseases of vegetable crops and virus diseases of all Delaware crops. Currently teach People and Plants: Feast or Famine, Introductory Plant Pathology and have taught Plants of the Ecuador and the Galapagos, Diagnostic Plant Pathology, Plant Virology, Introductory Botany, and Vegetable Science.
  • 1995-2006 Associate Professor of Plant Pathology. Department of Plant and Soil Sciences, University of Delaware.
  • 1989-1994 Assistant Professor of Plant Pathology, Department of Plant and Soil Sciences, University of Delaware.
  • 1986 1989 Research Plant Pathologist, Department of Plant and Soil Sciences, University of Delaware, Research and Education Center. Applied research on production and pathology of vegetable and agronomic crops.
  • 1981 1985 Graduate Research Assistant, Department of Botany and Plant Pathology, Michigan State University.

GRANTS AND CONTRACTS

 

Byrne, D., T.A. Evans, B. Pemberton, X. Wang, C. Hall, K. Ong, P. Klein, M. Palma and L. Ribera, M. Windham, A. Windham and F. Hale,; M. Paret and G. Knox, F. Ochoa Corona and J. Olson, J. Hammond, R. Jordon and R. Ochoa. 2014-2019. USDA-NIFA Specialty Crops Research Initiative Grant Program $3,135,689 (Plus 100% match, not shown). Combating Rose Rosette Disease; Short term and Long Term Approaches.

 

Donofrio, N.M., T.A. Evans, B.C. Meyers, N.F. Gregory, K. Everts, R.J. Wisser, V. Kalavacharla and E.G. Ernest. 2012-2017. USDA-NIFA Specialty Crops Research Initiative Grant Program, $1,573,112 (Plus 100% match, not shown). Toward a Better Bean; Improving genetic, genomic, breeding and crop management resources for lima bean to benefit the Mid-Atlantic Region.

Evans, T.A., E.G. Ernest and N.F. Gregory. 2012-2015. Delaware Department of Agriculture-USDA Specialty Crops Research Initiative-Block Grant, $13, 316. Lima Bean Breeding for Resistance to Downy Mildew (Phytophthora phaseoli) and Pod Rot (Phytophthora capsici)

Evans, T.A. R.J. Wisser E.G. Ernest and N.F. Gregory. 2011-2014. Delaware Department of Agriculture-USDA Specialty Crops Research Initiative-Block Grant, $35,000. Development of Molecular Markers for Downy Mildew Resistance Genes in Lima Bean.

Evans, T.A. E.G. Ernest and N.F. Gregory. 2010-2013. Delaware Department of Agriculture- USDA Specialty Crops Research Initiative-Block Grant, $23,000. Field and Greenhouse Evaluations of Lima Bean Germplasm for Resistance to Phytophthora capsici, the Causal Agent of Lima Bean Pod Rot.

Evans, T.A., E.G. Ernest and R.J. Wisser. 2009-2012. Delaware Department of Agriculture – USDA Specialty Crops Resereach Initiative-Block Grant, $32,000. Genomic Resources Development for Breeding and Gene Discovery in Lima Bean.

 

Gregory, N.F. and T.A. Evans. 2009. USDA-APHIS-PPQ, $20,000. Delaware Survey for Plum Pox Potyvirus.

 

Gregory, N.F. and T.A. Evans. 2008. USDA-APHIS-PPQ, $5,000. Support for quarantine pathogen detection.

 

Evans, T.A., N.M. Donofrio, Venu Kalavacharla. 2008-2010. Development of a Molecular Map in Lima Bean (Phaseolus lunatus) and the Identification of Molecular Markers Linked for Disease Resistance to Downy Mildew Caused by Phytophthora phaseoli, $20,000. University of Delaware, College of Agriculture and Natural Resources.

 

Donofrio, N.M. and T.A. Evans. 2007-2009. Fungal genomics of Phytophthora phaseoli, the causal agent of downy mildew of lima bean (Phaseolus lunatus). $20,000. University of Delaware, College of Agriculture and Natural Resources Seed Grant Program.

Evans, T.A. and A. Shalaby. Pectobacteria Soft Rot of Potato. Joint US-Egypt Commission on Science Collaboration, 2003, $120,000.

Evans, T.A. and R.B. Carroll. Healthy Plants. MBNA-Cape Henlopen School District, MBNA Excellence in Teaching, 1999, $10,000.

Evans, T.A and R.B. Carroll. Healthy Plants, Healthy Planet: Helping Delaware Students Meet the New Science Standards. MBNA-Education Foundation, 1998-1999, $40,000.

Evans, T.A, N.F. Gregory and R.P. Mulrooney. Survey of Delaware Nurseries for Phytophthora ramorum. 2006. USDA-APHIS, $37,000

Evans, T.A, N.F. Gregory and R.P. Mulrooney. Survey of Delaware Nurseries for Phytophthora ramorum, USDA-APHIS, 2006. $47,400

Evans, T.A., N.F. Gregory. State of Delaware Rose Rosette Disease Survey.   USDA-APHIS. 2006, $5,000.

Evans, T.A. Support for Plant Disease Diagnostic Services, 2005, Delaware Dept. of Ag, $67,300.

Evans, T.A., N.F. Gregory and R.P. Mulrooney (PI). Sentinel Plots for the Early Detection of Asian Soybean Rust in Delaware, 2005. USDA-APHIS, $12,500.

Evans, T.A., N. F. Gregory and R.P. Mulrooney (Co-PI). Survey of Delaware Nurseries for Phytophthora ramorum, USDA-APHIS, 2005, $41,400.

Evans, T.A.. State of Delaware Rose Rosette Disease Survey, 2005, USDA-APHIS. $10,000.

Evans, T.A.. Support for Plant Disease Diagnostic Services, 2004, Delaware Dept. of Ag, $20,000

Evans, T.A.. Support for Plant Disease Diagnostic Services, 2004, USDA-APHIS, $25,000.

Evans, T.A. and R.P. Mulrooney. Survey of Delaware Nurseries for Phytophthora ramorum, 2004, USDA-APHIS,   $40,000.

Evans, T.A.. State of Delaware Rose Rosette Disease Survey. 2004, USDA-APHIS. $10,000.

Evans, T.A.. Enhancement of Plant Pathogen Detection Facilities, 2003, USDA.APHIS, $49,454.

Evans, T.A.. USDA-APHIS, Delaware Department of Agriculture, Plum Pox Survey, 2003, $7,500.

Evans, T.A..  State of Delaware Rose Rosette Disease Survey, USDA-APHIS, 2003, $10,000.

Evans, T.A. and R.P. Mulrooney, State of Delaware Survey for Ralstonia solancerum in Greenhouse Geraniums, 2003, USDA-APHIS, $5,200.

Evans, T.A., R.P. Mulrooney and R.B. Carroll. Lima Bean Downy Mildew Research, Delaware Department of Agriculture and USDA, 2003, $40,000.

Evans, T.A., R.P. Mulrooney and W.G. Pill. Seed Treatments for Control of Soilborne Disease, Delaware Department of Agriculture and USDA, 2003, $15,000.

Evans, T.A.. Equipment Enhancement for Detection of Plant Pathogens, Delaware Department of Agriculture, USDA-APHIS, 2003, $40,000.

Evans, T.A.. Equipment Enhancement for Detection of Plant Pathogens, Delaware Department of Agriculture, USDA-APHIS, 2002, $15,000.

Evans, T.A. and R.P. Mulrooney (PI). Lima Bean Downy Mildew Research, Delaware Department of Agriculture and USDA, 2002, $40,000.

Evans, T.A., R.P. Mulrooney and W.G. Pill. Seed Treatments for Control of Soilborne Disease, Delaware Department of Agriculture and USDA, 2002, $20,000.

Evans, T.A.. State of Delaware Rose Rosette Disease Survey, 2002, USDA-APHIS, $10,000.

Evans, T.A.. State of Delaware Plum Pox Potyvirus Survey, USDA-APHIS, 2002, $11,000.

Evans, T.A.. State of Delaware Plum Pox Potyvirus Survey, USDA-APHIS, 2001, $10,000.

Evans, T.A.. State of Delaware Plum Pox Potyvirus Survey, USDA-APHIS, 2000, $15,000.

 

Evans, T.A.. R.W. Taylor (PI) and R.P. Mulrooney (PI). Soybean Cultivar Evaluations. Delaware Soybean Board, 1998-99, $22,300.

 

Evans, T.A. and D.A. Schaff. Soybean severe stunt virus cDNA library construction and clone selection, USDA-NRICGP, 1993-1997, $50,000.

Kitto S.L., T.A Evans and V. Damsteegt. Virus Identification, Elimination and Micropropagation in Tropaeolum tuberosum and Arracacha xanthorrhiza, USAID-PSTC, 1992-1996, $149,965.

Evans, T.A.. Survey of Delaware potatoes for the occurrence of PVY-N. USDA-APHIS, 1993, $3,000.

 

Evans, T.A.. Survey of Delaware potatoes for the Occurrence of plant viruses, Delaware Potato Board, 1993, $2,500.

 

Evans, T.A.. Survey of Cucurbits in Delaware for the Occurrence of Plant Viruses, USDA-APHIS, 1992, $3,000.

 

Evans, T.A.. Survey of Tomatoes and Peppers in Delaware for the Occurrence of Plant Viruses,

USDA-APHIS, 1991, $3,000.

Evans, T.A, R.P Mulrooney and R.W. Taylor, Control of Soybean Severe Stunt Disease Through the Use of Crop Rotation, Delaware Soybean Board, 1990-91, $6,000.

Evans, T.A.. Identification of Weed Reservoirs for Tomato Spotted Wilt Virus, Delaware Disease Survey, USDA-APHIS, 1990, $2,500.

Evans, T.A., W.G. Pill and H.D. Tilmon. Forcing Blanched Asparagus, Delaware Department of Agriculture Alternative Agriculture Program, 1990-91, $2,500.

Evans, T.A., R.B. Carroll and R.P. Mulrooney. Control of Soybean Severe Stunt Disease Through the Use of Crop Rotation and Resistant Cultivars, Delaware Soybean Board, 1989-90, $5,300.

Evans, T.A.. Survey of Delaware Crops for Tomato Spotted Wilt Virus, Delaware Disease Survey Program, USDA-APHIS, 1988, $2,000.

Evans, T.A., R.B. Carroll and R.P. Mulrooney. Characterization and Control of a New Virus Disease Affecting Delaware Soybeans. Delaware Soybean Board, 1988‑1989, $6,000.

Evans, T.A.. Survey of Delaware Soybeans for a New Virus Disease Affecting Delaware Soybeans, Delaware Disease Survey Program, USDA-APHIS, 1987, $2,000.

 

Evans, T.A. Evaluation of an Enzyme‑linked Immunosorbent Assay for Soilborne Plant Pathogenic Fungi. University of Delaware Research Foundation, 1987‑88, $12,000.

Evans, T.A., R.B. Carroll and R.P. Mulrooney. Identification and Characterization of an Unknown Virus‑Like Disease Affecting Delaware Soybeans. Delaware Soybean Board, 1987‑88, $6,000.

Evans, T.A. and R.P. Mulrooney. Virus Disease Survey of Delaware Potatoes, Delaware Potato Board, 1987‑88, $2,000.

Evans, T.A.. Evaluation of Latex Spray Mulches in the Control of Soilborne Disease in Pickles, Polysar Chemical Ltd., 1986-87, $2,000.

NON-COMPETITIVE GRANTS

Evans, T.A. and H. Frick (PI). Graduate Student Support (Revital Herrmann), DuPont AgriSciences, 2004, $22,000.

Evans, T.A. and H. Frick (PI). Graduate Student Support (Revital Herrmann), DuPont AgriSciences, 2003, $17,000.

Evans, T.A. and H. Frick(PI). Graduate Student Support (Revital Herrmann), DuPont AgriSciences, 2002, $17,000

Evans, T.A.. Graduate Student Support (Uta Fuchs), Pioneer, 2002, $20,000

Evans, T.A.and H. Frick. Graduate Student Support (Revital Herrmann), DuPont AgriSsciences, 2001, $17,000

Evans, T.A. and R.B. Carroll (Co-PI). Screening Lima Bean Cultivars for Resistance to Phaseolus phaseoli. Charter Seed Company, 1999, $18,000.

UNIVERSITY OF DELAWARE INTERNATIONAL PROGRAMS GRANTS

Evans, T.A. and R.B. Carrroll (PI). Survey of Moroccan Potatoes for Ralstonia solancearum, 2002, $10,000.

Evans, T.A.. Development of international research linkages with Morocco, Agadir, Morocco, May 4-14, 1997, $1000.

Evans, T.A.. Development and delivery of workshop, “Virus Identification and Elimination”, Ambato, Ecuador, April 15-18, 1991, $1000.

Evans, T.A. Invited presentation, “The Effect of Virus Infection on Tissue Culture Clones and Methods for Virus Eradication”, Ambato, Ecuador, Sept. 18-25, 1991, $300.

TEACHING DEVELOPMENT GRANTS

Evans, T.A., Carroll, R.B. (Co-PI), and Mulrooney, R.P (Co-PI). Planning, Design and Development of University of Delaware Plant Disease Web Site for Teaching Plant Pathology, Office of Associate Vice President Computing and Network Services, University of Delaware, 1996, $1000.

Evans, T.A. and R.B. Carroll. Development of a Multimedia Tutorial System for Teaching Diagnosis of Plant Disease, University of Delaware, Center for Teaching Effectiveness, 1992, $500.

Evans, T.A., G.L. Schumann and F.H. Tainter. Interactive Software and Hyperlecturing Using a Plant Disease Videodisc Library, USDA Challenge Grant, 1991-1993, $31,485.

Evans, T.A., G.L. Schumann and F.H. Tainter. Development of Interactive Videodisc Technology for Teaching Plant Pathology, USDA Challenge Grant, 1990-1993, $145,675.

Evans’ Laboratory Current Research Group

  • From left, Bekki Helton (post doctoral fellow), Dr. Ayman Esh (visiting scholar, Agricultural Research Center, Giza, Egypt), Sridhara Gupta Kunjeti (Ph.D. student), Tom Evans (principle investigator), Nancy Gregory (research associate and lab coordinator), Juan Sebastian (research assistant), David Nesnow (M.S. student).
    tom-evans-group

Honors and Appointments

Chair, American Phytopathological Society (APS) organizing committee for ICPP 2018
President’s Volunteer Service Award from USAID Feed the Future Program, 2010
Vice President, International Society for Plant Pathology (ISPP), 2013-2018
Treasurer, ISPP, 2008-2013
APS Financial Advisory Committee, 2005-2007
APS Representative and Councilor to the International Society of Plant Pathology, 2005-2015
Potomac Division Councilor of APS, 2005-2007
Member APS Ad Hoc Committee on the Future of International Programs, 2007
Senior Editor, APS Education Center, 2009-2012
Senior Editor, Laboratory Teaching Manual for Introductory Plant Pathology, APS Press
Panel Chair for USDA-ARS Office of Science Quality Review, 2007
Potomac Division Distinguished Service Award, 2006
Past President, and Vice-President of the Potomac Division, APS. 1992-1994
Past Associate Editor – Plant Disease: an International Journal of Applied Plant Pathology
Sigma Xi – Science Honor Society, inducted 1977
Beta Beta Beta – Biology Honor Society, inducted 1976

SCHOLARLY  PUBLICATIONS  IN DEVELOPMENT

Santamaria, L, T.A. Evans, E.G. Ernest, N.F.Gregory.  The Nature of Resistance to Phytophthora phaseoli in Lima Bean.  Plant Disease

Bartz, W.C., W.G. Pill and T.A. Evans.  Germinations of Scotch Bonnett Pepper Seeds.  Scientia Horticulturae

Evans, T.A, M. Ordonez, R. Montufar and K.B.O. Keil.  The First Report of Bud Blight Caused by Phytophthora palmivora in Hearts of Palm.  Plant Disease

Santamaria, L. N. Khanh and T.A. Evans. Epidemiology of Downy Mildew of Lima Bean Caused by Phytophthora phaseoli.  Plant Disease

Evans, T.A., G. Bonari and C. Perini.  The Terracota Fungi of Valenti Serini.  Feature Article APS Education Center, APS Press.

 

SCHOLARLY PUBLICATIONS

Evans, T.A., E.G. Ernest and N.F. Gregory.  2012.  Field and Greenhouse Evaluation of Lima Bean Germplasm for Resistance to Phytophthora capsici, the Causal Agent of Lima Bean Pod Rot.  Bean Improvement Cooperative V7:70

Kunjeti, S.G., T.A. Evans, A.G. Marsh, N.F. Gregory, S. Kunjeti, B.C. Meyers, V.S. Kalavacharla and N. M. Donofrio. 2012.  RNA-Seq reveals infection-related global gene changes in Phytophthora phaseoli, the causal agent of lima bean downy mildew.  Molecular Plant Pathology 13:454-466.

Pill, W.G., C.M. Collins, N. Gregory and T.A. Evans. 2011.   Application method and rate of Trichoderma species as a biological control against Pythium aphanidermatum (Edson) Fitzp. in the production of microgreen table beets (Beta vulgaris L.).  Scientia Horticulturae 129(4):914-918.

Ernest, E.G.  T.A. Evans and R.J. Wisser. 2011. Lima bean breeding and genetic research at the University of Delaware.  Bean Improvement Cooperative V6: 21-23.

Mulrooney, R.P.  N.F. Gregory and T.A. Evans.  2011.  Evaluation of fungicides applied preventatively for the control of downy mildew of baby lima bean, 2010. V5:80.

Mulrooney, R.P., N.F. Gregory and T.A. Evans.  2010.   Evaluation of fungicides for the control of downy mildew of lima bean, 2009.  Plant Disease Management Reports V4:65

Mulrooney, R.P., N.F. Gregory and T.A. Evans.  2010.  Evaluation of fungicides applied curatively for the control of downy mildew of baby lima bean, 2009.  Plant Disease Management Reports V4:64

Evans, T.A. and C. Keil.  2009.  A survey of scotch bonnet peppers in Jamaica for plant viruses and insect pests.    Journal of Environmental Monitoring and Restoration.  6:68-73.

Mulrooney, R.P., N.F. Gregory and T.A. Evans.  2009.  Evaluation of fungicides for the control of downy mildew of lima bean.  Plant Disease Management Reports V3:108.

Soria, S. C. Taboada, R. Vega Gonzales, T.A. Evans, V.D. Damsteegt, and S. Kitto. 2009.  Effect of virus infection on Tropaeolum tuberosum In Vitro and field performance of virus-tested and virus-infected plants in the field in Ecuador.  Experimental Agriculture 45:483-497.

Mulrooney, R.P., N.F. Gregory, and T.A. Evans.  2008.  Evaluation of fungicides for the control of downy mildew of lima bean, 2007.  Plant Disease Management Reports V2:16.

Davidson, C.R., T. A. Evans, R. P. Mulrooney, N. F. Gregory, R. B. Carroll and N.R. O’Neill. 2007.  Lima bean downy mildew epidemics caused by new physiological races of Phytophthora phaseoli.  Plant Disease 92(5):670-674.

Evans, T. A., L.C Miller, B.L. Vasilas, R.W. Taylor and R.P. Mulrooney.  2007. Management of Xiphinema americanum and soybean severe stunt disease in soybean using crop rotation.  Plant Disease 91(2):216-219.

Evans, T.A.,  R.P. Mulrooney, N.F. Gregory, and E. Kee2007.  Lima bean downy mildew: impact etiology and management strategies for Delaware and the mid-Atlantic U.S.  Plant Disease 91(2):128-135 DOI:10.1094/PDIS-91-2-0128.

Santamaria, L. T.A. Evans, R.P. Mulrooney, and R.B. Carroll.  2006.  Evaluation of USDA and CIAT lima bean germplasm accessions for resistance to downy mildew, 2005.  Biological and Cultural Tests (online) Report 21:V013.  The American Phytopathological Society, St. Paul, MN.

Santamaria, L. T.A. Evans, R.P. Mulrooney, and  R.B. Carroll.  2006.  Evaluation of lima bean cultivars for resistance to downy mildew, 2005.  Biological and Cultural Tests (online) Report 21:V014.  The American Phytopathological Society, St. Paul, MN.

Davey, J.F., R.P. Mulrooney, T.A. Evans and R.B. Carroll.  2006.  Timing of fungicide application for the control downy mildew of baby lima bean, 2005.  Fungicide and Nematicide Tests (online) Report 61:V040.  The American Phytopathological Society, St. Paul, MN.

Pill, W.G., Evans, T.A., M.W. Orzeleski, R.P. Mulrooney, and W.E. Kee.  2005.  The ‘Maffei 15’ lima bean compensates for reduced plant stand.  HortScience 40:2024-2025.

Santamaria, L. T.A. Evans, R.P. Mulrooney, and R.B. Carroll.  2005.  Evaluation of USDA and CIAT lima bean germplasm accessions for resistance to downy mildew, 2004.  Biological and Cultural Tests (online) Report 20:V013.  The American Phytopathological Society, St. Paul, MN.

Santamaria, L. T.A. Evans, R.P. Mulrooney, R.B. Carroll.  2005.  Evaluation of lima bean cultivars for resistance to downy mildew, 2004.  Biological and Cultural Tests (online) Report 20:V014.  The American Phytopathological Society, St. Paul, MN.

Davey, J.F., R.P. Mulrooney, T.A. Evans and R.B. Carroll.  2005.  Timing of fungicide application for the control downy mildew of baby lima bean, 2004 Fungicide and Nematicide Tests (online) Report 60:V040.  The American Phytopathological Society, St. Paul, MN.

Davey, J.F., R.P. Mulrooney, T.A. Evans and R.B. Carroll.  2005.  Timing of Phostrol fungicide application for the control downy mildew of baby lima bean, 2004.  Fungicide and Nematicide Tests (online) Report 60:V043.  The American Phytopathological Society, St. Paul, MN.

                  

Orzeleski, M.W, T.A. Evans, N.F. Gregory and W.G. Pill.  2005.  Enhanced germination of primed mericarps of parsley (Petroselinum crispum Mill. Nyman ex A.W. Hill) limited by Alternaria alternata proliferatum.  Journal of Horticultural Science and Biotechnology.  80(4):427-432.

Davey, J.F., R.P. Mulrooney, T.A. Evans and R.B. Carroll.  2005.  Timing of preventive fungicide application for the control downy mildew of baby lima bean, 2004.  Fungicide and Nematicide Tests (online) Report 60:V043.

Vasilas, B. L. Vasilas, J. Thompson, A. Rizzo, J. Fuhrumann, T. Evans, J. Pesek and K. Kunkle. 2004.  Ectomycorrhizal mantles as indicators or hydrology for jurisdictional wetland determinations.  Wetlands 24(4):784-795.

Birmingham, A.M., E.A. Buzby, D.L. Davies, E.R. Benson, J.L. Glancey, W.G.Pill, T.A. Evans,  R.P. Mulrooney, and M.W. Olszewski. 2004.  A precision planter for large seeds in small plots. HortTechnology 14(4):1-3.

Davey, J.F. R.P. Mulrooney, T.A. Evans, and R.B. Carroll.  2004.  Evaluation of fungicides for the control of downy mildew of baby lima bean, 2003.  Fungicide and Nematicide Tests (online) Report 59:V104.  The American Phytopathological Society, St. Paul, MN.

Davey, J.F., R.P. Mulrooney, T.A. Evans, and R.B. Carroll.  2004.  Timing of preventative fungicide applications for the control of downy mildew of baby lima bean, 2003.  Fungicide and Nematicide Tests (online) Report 59:V105.  The American Phytopathological Society, St. Paul, MN.

 

Davey, J.F., R.P. Mulrooney, T.A. Evans, and R.B. Carroll.  2004.  Timing of post-infection fungicide applications for the control of downy mildew of baby lima bean, 2003.  Fungicide and Nematicide Tests (online) Report 59:V106.  The American Phytopathological Society, St. Paul, MN.

Santamaria, L. T.A. Evans, R.P. Mulrooney, and R.B. Carroll.  2004.  Evaluation of baby lima bean cultivars for resistance to downy mildew caused by Phytophthora phaseoli, 2003.  Biological and Cultural Tests (online) Report 59:V107.  The American Phytopathological Society, St. Paul, MN.

T.A. Evans, L. Santamaria, R.P. Mulrooney, and R.B. Carroll.  2003.  Evaluation of baby lima bean cultivars for resistance to downy mildew, 2002.  Biological and Cultural Tests (online) Report 18:V028. The American Phytopathological Society, St. Paul, MN.

Krishnan P., T.A. Evans, K. Ballal, and L.J. Kemble.  2003.  Scanning electron microscopy studies of new and worn fan nozzles. Applied Engineering in Agriculture 20(2):133-137.

Ford, R. and T.A. Evans. 2003.  Tobacco Mosaic Virus (www.apsnet.org/education/K-12 PlantPathways/Teachers Guide/Activies/TMV/TMV/default). The Plant Health Instructor 10:1094.

Evans, T.A., C.R. Davidson, J.D. Dominiak, R.P. Mulrooney, and R.B. Carroll.  2002.  Two new races of Phytophthora phaseoli from lima bean in Delaware. Plant Disease 86:1091.

Davidson, C.R., R.P. Mulrooney, R.B. Carroll and T.A. Evans.  2002.  First report of Phytophthora capsici on lima bean in Delaware.  Plant Disease 85:886.

Dominiak, J.D., R.P. Mulrooney and T.A. Evans, 2000.  Fungicide evaluation for the control of downy mildew of baby lima beans, 1999.  Fungicide and Nematicides Tests (online) Report 15:V .  The American Phytopathological Society, St. Paul, MN.

Sedegui, M., R.B. Carroll, A.L. Morehart, T.A. Evans, S.H. Kim and R. Lakhdar. 2000.  Genetic structure of Phytophthora infestans populations in Morocco.  Plant Disease 84:173-176.

Evans, T.A.  1999.  Soybean Severe Stunt Nepovirus. Pp 88-89. Chapter In Hartman, G. L., Sinclair, J. B., and Rupe, J. C.  The Compendium of Soybean Disease, 4th edition, APS Press, St. Paul, MN.
Mulrooney, R.P., T.A. Evans and R.W. Taylor. 1999.  Field evaluation of selected soybean

cultivars for resistance to soybean severe stunt virus, 1998.  Biological and Cultural Control Tests. Vol 14: 95.  The American Phytopathological Society, St. Paul, MN.

Elmer W. and T.A. Evans 1998.  Names of Asparagus Diseases, Plant Disease Notes. PhytoPathNews.  APS Press, St. Paul, MN.

Soria, S. L., R. Vega, V.D. Damsteegt, L.L. McDaniels, S.L. Kitto and T.A. Evans.  1998.      Occurrence and partial characterization of a mechanically transmissible virus in mashua (Tropaeolum tuberosum) from Ecuador.  Plant Disease 82:69-73.

Mulrooney, R.P., T.A. Evans, and R.W. Taylor.  1998.  Evaluation of selected soybean cultivars for resistance to soybean severe stunt virus, 1997.  Biological and Cultural Control Tests. Vol 13: 87.  The American Phytopathological Society, St. Paul, MN.

Kitto, S.L., T.A. Evans and R.L. Rojas.  1997.  The Ecuador Odyssey.  Chronica Horticulturae 37(1):17.

Haynes, J., W.G. Pill and T.A. Evans.  1997. Seed treatments improve the germination and seedling emergence of switchgrass (Panicum virgatum L.).  HortScience 32(7):1222-1226.

Mulrooney, R.P., T.A. Evans, and R.W. Taylor.  1997.  Evaluation of selected soybean cultivars for resistance to soybean severe stunt virus, 1996.  Biological and Cultural Control Tests. Vol 12:84.  The American Phytopathological Society, St. Paul, MN.

Vasilas, B. L.  R.L. Nelson, J.J. Fuhrmann and T.A. Evans.  1995.  Relationship of nitrogen utilization patterns with soybean yield and seed-fill period.  Crop Science 35:809-813

Miller, L. C., B.L. Vasilas, R.W. Taylor, T.A. Evans and C.M.Gempesaw.  1995.  Plant population and hybrid consideration for dryland corn production on drought-susceptible soils.

Canadian Journal of Plant Science 75:87-91.

Tainter, F. H., G.L. Schumann and T.A. Evans.  1995.  Development of the plant pathology laser videodisc.  Journal of Natural Resources and Life Sciences Education 24:48-52.

Krishnan, P., T.A. Evans and W.G. Pill.  1994.  Threshing cylinder speed effect on Amaranthus

hypochondriacus seed germination – A preliminary study.  HortScience  29:652-654.

Pill, W.G., P. Krishnan and T.A. Evans.  1994.  Effect of priming on germination of mechanically threshed seed of Amaranthus hypochondriacus seed.  HortScience 29:655-658.

Schumann, G.L., T.A. Evans and F.H. Tainter.  1993.  An Interactive Videodisc Introduction to Plant Pathogens and Plant Disease.  American Phytopathological Society, St. Paul, MN. translated into Spanish and French (1998).  APS Press, St. Paul, MN.

Evans, T.A., G.L. Schumann and F.H. Tainter.  1993.  A Plant Disease Interactive Video Image Glossary. APS Press, St. Paul, MN.

Pill, W.G., T.A. Evans and S.A. Garrison.  1993.  Forcing white asparagus in various substrates under cool and warm regimes.  HortScience 28:996-998.

Evans, T.A., G.L. Schumann and F.H. Tainter.  1992.  A Plant Disease Video Image Resource Database.  American Phytopathological Society Press, St. Paul, MN, 10,000 records.

Weldekidan, T., T.A. Evans, R.B. Carroll and R.P. Mulrooney.  1992.  Etiology of soybean severe stunt disease and some properties of the causal virus.  Plant Disease 76:747-750.

DeVries, R.M., T.A. Evans and C.T. Stephens.  1992.  Effect of asparagus virus infection on asparagus tissue culture propagation and persistence through culture.  Plant Cell, Tissue and Organ Culture 31:31-35.

Evans, T.A., G.L. Schumann and F.H. Tainter.  1992.  A Plant Disease VideoImage Resource.  American Phytopathological Society Press, St. Paul, MN, 10,000 images.

Evans, T.A.  1991.  Occurrence of asparagus virus I and asparagus virus II in Delaware asparagus. Plant Disease 75:1075.

 

Evans, T.A. and R.P. Mulrooney. 1991.  First report of watermelon fruit blotch in Delaware.  Plant Disease 75:1074.

Pill, W.G and T.A. Evans.  1991.  Seedling emergence and economic yield from osmotically primed or hydrated seeds of carrot (Daucus carota L.).  Journal of Horticultural Science 66:67-74.

Evans, T.A., R.M. DeVries, T.L. Wacker and C.T. Stephens.  1990.  Epidemiology of asparagus viruses in Michigan asparagus. Acta Horticulturae 271:285-290.

Evans, T.A., and C.T. Stephens.  1989.  First report of asparagus virus I in Michigan asparagus.  Plant Disease 73:273.

Evans, T.A., and C.T. Stephens.  1989.  Increased susceptibility to Fusarium crown and root rot in virus‑infected asparagus.  Phytopathology 79:253‑258.

Mulrooney, R.P., J.C. Windsor and T.A. Evans.  1989.  First report of wheat spindle streak virus in Delaware.  Plant Disease 73:444.

Evans, T.A. and W.G. Pill.  1989.  Emergence and seedling growth from osmotically primed or pregerminated seeds of asparagus (Asparagus officinalis L.).  Journal of Horticultural Science  64:275‑282.

Evans, T.A., and C.T. Stephens.  1989.  First report of asparagus virus I in Michigan asparagus.  Plant Disease 73:273.

Evans, T.A., and C.T. Stephens.  1988.  Association of asparagus virus II with pollen from infected asparagus (Asparagus officinalis L.).  Plant Disease 72:195‑198.

Evans, T.A. and C.T. Stephens.  1986.  Effect of irrigation on radish cultivar reactions to common scab.  Biological and Cultural Tests 1:19.

Evans, T.A., and C.T. Stephens. 1985.  The first report in Michigan of the teleomorph of Stemphylium vesicarium; the causal agent of purple spot of asparagus.  Plant Disease 68:1099.

Levick, D.R., Evans, T.A., Stephens, C.T., and M.L. Lacy.  1985.  Etiology of radish scab and its control through irrigation.  Phytopathology 75:568‑572.

Evans, T.A. and  C.T.Stephens.  1985.  Contribution of asparagus viruses to Michigan asparagus decline.  Proceedings 6th International Asparagus Symposium.  12 pp.

Hartung, A.C., T.A. Evans and C.T. Stephens.  1984.  Occurrence of asparagus virus II in commercial asparagus in Michigan.  Plant Disease  69:501‑504.

Webster, B.D., R.M. Ross and T.A. Evans.  1982.  Nectar and the nectary of Phaseolus vulgaris L.  J. American Society of HortScience 107:497‑503.

Blakely, L.M., M. Durham, T.A. Evans and R.M. Blakely.  1982.  Experimental studies on lateral root formation in radish seedling roots.  I. General methods, developmental stages and spontaneous formation of laterals.  Bot. Gaz. 143:341‑352.

Blakely, L.M. and T.A. Evans.  1979.  Cell dynamics studies on the pericycle of radish seedling roots.  Plant Science Letters 14:79‑83.

EXTENSION PUBLICATIONS

 

Evans, T.A.  1991.  Virus diseases, In Delaware Soybean Production Guide.  University of Delaware, Newark, DE, 7 pp.

Evans, T.A. and R.W. Taylor. 1991. Virus diseases of soybeans. Soybean Facts SF-18, University of Delaware, Newark, DE.

Carroll, R.B., Taylor, R.W., Mulrooney, R.P. and T.A. Evans.  1991.  Seed and seedling

diseases of soybeans.  Soybean Facts SF-19, University of Delaware, Newark, DE.

Carroll, R.B., Taylor, R.W., Mulrooney, R.P. and T.A. Evans.  1991.  Pod and stem diseases of soybeans.  Soybean Facts SF-20, University of Delaware, Newark, DE.

Carroll, R.B., Taylor, R.W., Mulrooney, R.P. and T.A. Evans.  1991.  Root and leaf diseases of soybeans.  Soybean Facts SF-21, University of Delaware, Newark, DE.

Uniatowski, R., Taylor, R.W., Mulrooney, R.P. and T.A. Evans.  1988.  Delaware Soybean Variety Performance Tests.  Cooperative bulletin #17, University of Delaware,  Newark, DE.

CONTRIBUTED PAPERS WITH ABSTRACTS OR PROCEEDINGS

Smith, K. T., G. Johnson, T. A. Evans, S. Meyers, J..Desaeger.  Sampling techniques and detection methods for developing risk assessments for root-knot nematode (Meloidogyne incognita) on lima bean (Phaseolus lunatus) in the mid-Atlantic region.  APS Potomac Division Meeting, Annapolis, MD. March 2014.

Nguyen, K. T.A. Evans, N. F. Gregory, N. Kleczewski, L. Madden.  Epidemiological studies of Phytophthora phaseoli: Relationship between leaf wetness duration and development. APS Potomac Division Meeting, Annapolis, MD. March 2014.

Mhora, T.  N. Donofrio, R. J. Wisser, W. Fry and T.A. Evans.  Genotyping-by-seuencing in bulk segregant analysis of race F resistance to downy mildew (Phytophthora phaseoli) on lima bean. APS Potomac Division Meeting, Annapolis, MD. March 2014.

Kness, A.  G. Johnson, K. Everts and T. A. Evans.  Chemical, biological and cultural control of pod rot of lima bean caused by Phytophthora capsici. APS Potomac Division Meeting, Annapolis, MD. March 2014.

Evans, T.A., E.G. Ernest, N.F. Gregory.  Evaluation of Lima Bean Germplasm for Resistance to

Phytophthora capsici, the Causal Agent of Lima Bean Pod Rot.  APS National Meeting, Providence, RI.  August 2012.

Kunjeti, S.G., N. M. Donofrio, B. C. Meyers, T. A. Evans.  Identification of pathogenesis-related genes in Phytophthora phaseoli during infection of lima bean. APS National Meeting, Honolulu, HI.  August 2011

Kunjeti, S.G., N. M. Donofrio, B. C. Meyers, T. A. Evans.  Identification of pathogenesis-related genes in Phytophthora phaseoli during infection of lima bean. APS Potomac Division Meeting, Rehoboth Beach, DE. March 2011.

Kunjeti, S.G., N. M. Donofrio, B. C. Meyers, T. A. Evans.  Identification of pathogenesis-related genes in Phytophthora phaseoli during infection of lima bean. APS National Meeting In Charlotte, N.C.  August, 2010.

Kunjeti, S.G., N. M. Donofrio, B. C. Meyers, T. A. Evans.  Identification of pathogenesis-related genes in Phytophthora phaseoli during infection of lima bean. APS Potomac Division Meeting In Ocean City, MD.  August, 2010.

Kunjeti, S.G., N. M. Donofrio, B. C. Meyers, T. A. Evans.  Identification of pathogenesis-related genes in Phytophthora phaseoli during infection of lima bean. APS National Meeting In Portland, Oregon.  August 2009.

Evans, T.A.  2009.  Etiology of Lima bean downy mildew.  University of Delaware Lima Bean Forum, Georgetown, DE.  Dec. 10 2009.

Evans, T.A.  2009.  Scotch Bonnet Peppers and Plants Viruses, Jamaican me Crazy.  Department of Plant and Soil Sciences, Current Concepts in Plant Health Seminar Series.  Oct. 6, 2009.

Evans, T.A. and C. B. Keil.  2009.   A survey of Scotch Bonnet Peppers in Jamaica for Plant Viruses.  Third National Conference on Agriculture and Natural Resource Conservation and Management, Delaware State University, Oct. 15-17, 2009.

Esh, A. and T.A. Evans.  2008.  Endoparastic microorganism infecting plant pathogenic fungi. International Congress of Plant Pathology, Torino, Italy, August 2008.

Santamaria, L., T.A. Evans, N. F. Gregory, R.B. Carroll,  R.P.Mulrooney A. Grybauskas and  K. E. Everts. 2006.   Environmental conditions affecting the development of downy mildew of lima bean caused by Phytophthora phaseoli. APS National Meeting,Quebec City, July 29-

Aug 2.

Santamaria, L., T.A. Evans, N.F. Gregory, R.B. Carroll, and R.P. Mulrooney. 2006 Screening of lima bean (Phaseolus lunatus) germplasm for resistance to downy mildew caused by  Phytophthora. phaseoli.  APS National Meeting, Quebec City, July 29-Aug 2.

Santamaria L., R.P. Mulrooney, and T.A. Evans. 2005.  Epidemiological studies of downy mildew of lima bean caused by Phytophthora phaseoli.  Bean Improvement Cooperative (BIC), Eighteenth Biennial Meeting, Oct. 31 – Nov. 3, Newark, DE.

Evans, T.A., R.P. Mulrooney and L. Santamaria. 2005.   Development of races of Phytophtrora phaseoli, the causal agent of downy mildew of lima bean  (Phaseolus lunatus) and development of resistance.  Bean Improvement Cooperative (BIC), Eighteenth Biennial Meeting, Oct. 31 – Nov. 3, Newark, DE.

Pill, W.G., T.A.Evans, M.W. Olszewski, R.P. Mulrooney, and W.E. Kee Jr.  2005.  The ‘Maffei 15’ Lima bean compensates for reduced plant stand.  Bean Improvement Cooperative (BIC), Eighteenth Biennial Meeting, Oct. 31 – Nov. 3, Newark, DE.

Mulrooney R.P, J.F Davey, and T.A. Evans.  2005.   Chemical control strategies for downy mildew (Phytophthora phaseoli) of baby lima bean. Bean Improvement Cooperative (BIC), Eighteenth Biennial Meeting, Oct. 31 – Nov. 3, Newark, DE.

Hermann, R., A. Lou, H. Frick and T.A. Evans.  2005.  Characterization and efficacy testing of novel antifungal peptides in transgenic rice. APS Potomac Division Meeting, Ocean City, MD.

Davey, J.F., R.P. Mulrooney, R.B. Carroll and T.A. Evans.  2004. Fungicide control of downy mildew of lima bean.  APS National Meeting, Anaheim, CA.

Santamaria, L. R.P. Mulrooney, R.B. Carroll and T.A. Evans.  2004.  Epidemiology of downy mildew of lima bean.  APS Potomac Meeting, Sheperdstown, WV.

Davey, J.F., R.P. Mulrooney, R B. Carroll, and T.A. Evans.  2004.  Evaluation of fungicide efficacy for the control of downy mildew of lima bean.  APS Potomac Meeting, Sheperdstown, WV.

Fuchs, U, T.A. Evans and J. Swiegart.  2003.  The role hydrophobins in pathogenesis in Fusarium. Plant Molecular Biology Conference, Monterey Bay, CA.

Sedegui, M., M. Medhat, T.A. Evans, and D. Maxwell.  2002.  First report of tomato yellow leaf curl geminivirus in Morocco. APS National Meeting, Milwulakee, WI.

Dominiak, J.D., T.A. Evans, R.P. Mulrooney and R.B. Carroll. 2001. Evaluation of fungicide efficacy for the control of downy mildew of lima bean.  APS National Meeting, Salt Lake City, UT.

Dominiak, J.D., T.A. Evans, R.P. Mulrooney, and R.B. Carroll 2001. Evaluation of isolates of Phytophthora phaseoli for resistance to Metalaxyl.  APS National Meeting, Salt Lake City, UT.

Davidson, C.R. R.P. Mulrooney, R.B. Carroll, and T.A. Evans. 2001.  Evaluation of genotypes of Phytophthora phaseoli, the causal agent of downy mildew of lima bean.  APS National Meeting, Salt Lake City, UT.

Basanayake, M.D.V.R. and T.A. Evans.  2000.  Gene expression patterns during pathogenesis in soybean.  APS National Meeting, New Orleans, LA.

Dominiak, J.D., R.P. Mulrooney, and T.A. Evans.  2000.  Evaluation of fungicides for control of downy mildew of baby lima bean.  APS Potomac Division, Newark, DE.

Davidson, C.R., R.B. Carroll, M. Sedegui and T.A. Evans.  2000.  Determination of the race profile of Phytophthora phaseoli, causal agent of lima bean downy mildew, on Delmarva.  APS Potomac Division Meeting, Newark, DE.

Evans, T.A. and D.P. Whittington.  2000.  The search for resistance to race E of Phytophthora phaseoli, the cause of downy mildew of lima bean.  APS Potomac Division Meeting, Newark, DE.

Basanayake, M.D.V.R. and T.A. Evans. 2000.  Gene expression patterns during pathogenesis in soybean.  APS Potomac Division Meeting, Newark, DE.

Basnayake, M.D.V.R. and T.A. Evans.  1999.  Differential hybridization analysis of a cDNA library from soybean severe stunt-infected soybean leaf tissue.  APS Potomac Division Meeting, Annapolis, MD.

Evans, T.A., R.P. Mulrooney and R.B. Carroll. 1998.  Characterization and control of soybean severe stunt: A new soilborne virus disease affecting soybeans in the U.S.  International Society of Plant Pathology, Edinburgh, Scotland.

Evans, T.A.  1998.  Integrated management strategies for control of insect transmitted viruses in selected vegetable crops.  Invited Presentation Moroccan Integrated Pest and Disease Management National Symposium, Agadir, Morocco.

Evans, T.A., R.P.  Mulrooney, R.P., R.W. Taylor and R.B. Carroll.  1997.  Characterization and control of soybean severe stunt: A new soilborne virus disease.  Southern Soybean Disease Workers Conference, Ft. Walton Beach, FL.

Evans, T.A., S.L. Soria, S. L., Kitto, V.D. Damsteegt, L. McDaniels and R.L. Rojas.  1996.  Occurrence and partial characterization of a mechanically transmissible virus in mashua (Tropaeolum tuberosum) from Ecuador.  Second International Congress on Underutilized Crops, Southampton, England.

Kitto, S.L., S.L. Soria, T.A. Evans, V.D. Damsteegt and R.L. Rojas. 1996.  Micropropagation of mashua (Tropaeolum tuberosum) and the elimination of Tropaeolum mosaic virus via shoot tip culture. Second International Congress on Underutilized Crops, Southampton, England.

Evans, T.A., S.L. Soria, S.L. Kitto, V.D. Damsteegt, L. McDaniels and R.L. Rojas.  1996.  Effect of potyvirus infection on productivity of  mashua (Tropaeolum tuberosum) in Ecuador.   National APS Annual Meeting, Indianapolis, IN.

Evans, T.A., R. Rouse, H. Dillard.  1995. Occurrence of microdochium blight of squash on Delmarva.   National APS Annual Meeting, Pittsburgh, PA.

Evans, T.A., V.D. Damsteegt, S.L. Soria, R. Vega de Rojas, A.S. Stone, R.L. Jordan and S.L. Kitto.  1993.  Occurrence of a mechanically transmissible virus in Tropaeolum tuberosum from Ecuador.  Presented at National APS Annual Meeting, Nashville, TN.

Evans, T.A., and D.A. Schaff.  1992.  Control of soybean severe stunt through the use of crop rotation and resistant cultivars and further characterization of its causal agent.  Phytopathology 82:1089.  Presented at the APS Annual Meeting.

De Vries-Paterson, R.M., V.B. Steward, and T.A. Evans.  1992.  Management of tomato spotted wilt virus in public gardens.  Phytopathology 82:719.  Presented at APS Potomac Division Meeting, Newark, DE.

Evans, T.A., G.L. Schumann and F.H. Tainter.  1991.  Videodisc technology for teaching plant pathology.  Phytopathology 81:1213.  Presented at APS Annual Meeting.

Sindermann, A.B., M.L. Putnam and T.A. Evans.  1991.  Tomato spotted wilt and potato wart – current situations in Maryland.  Phytopathology 81:701.  Presented at APS Potomac Division Meeting, College Park, MD.

Evans, T.A., G.L. Schumann and F.H. Tainter.  1991.  Development of interactive videodisc technology for teaching plant pathology.  Phytopathology 81:704.  Presented at APS Potomac Division Meeting, College Park, MD.

Evans, T.A., T. Weldekidan, R.B. Carroll and R.P. Mulrooney.  1990.  Etiology of soybean severe stunt disease and some properties of the causal virus.  Phytopathology 80:1021.  Presented at APS Annual Meeting, Grand Rapids, MI.

Muth, R.S., T.A. Evans and S.A. Johnston, S.A. 1990.  Effect of reflective mulches on yield of Bell Peppers.  HortScience 25:625.  Presented at Northeast Division ASHS Meeting.

De Vries-Patterson, R.M., C.T. Stephens and T.A. Evans. 1990.  Effect of virus infection on rooting and survival of asparagus tissue culture clones.  HortScience  25:626.  Presented at

Northeast Division ASHS Meeting.

Weldekidan, T., R.B. Carroll and T.A. Evans.  1988.  Association of Fusarium oxysporum with a new virus‑like disease affecting Delaware soybeans.  Phytopathology 78:532.  Presented at APS Annual Meeting, San Diego, CA.

Evans, T.A., R.P. Mulrooney and T. Weldekidan.  1988.  Update on unknown soil‑transmitted virus‑like disease affecting Delaware soybeans.  Presented at APS Potomac Division Meeting, Frederick, MD.

Evans, T.A. and R.P. Mulrooney.  1987.  Observations of an unknown mechanically transmissible virus‑like disease affecting Delaware soybeans.  Proceedings of Southern Soybean Disease Workers Annual Meeting.  Savannah, Georgia.

Evans, T.A. and C.T. Stephens.  1986.  Effect of virus infection on root initiation and survivability of asparagus tissue culture clones.   Presented at APS Annual Meeting.

 

Evans, T.A., G.R. Safir and C.T. Stephens. 1985. Vesicular‑arbuscular mycorrhizal fungi and their role in Michigan asparagus decline. Proceedings of the 6th International Asparagus Symposium, Guelph, Ontario, Canada.



INVITED TALKS & PROFESSIONAL PRESENTATIONS

The Re-Emergence of TSWV in the Constanza Valley, Dominican Republic:

A case study in integrated pest and disease management.  APS Potomac Division Meeting, Shepardstown, MD, April 2013.

Downy mildew and lima bean pod rot update.  Lima Bean Processors Round Table Meeting, Georgetown, DE, Dec 2012.

Downy mildew and lima bean pod rot.  Lima Bean Processors Round Table Meeting.  Georgetown, DE, Dec. 2009.

Observations on the Ramorum blight survey in the Mid-Atlantic States.  Northeastern Plant Board, Rehoboth Beach, DE, April 2006.

A tale of two invasive species, multiflora rose and rose rosette disease.  Delaware Invasive Species Council.  Newark, DE, Nov, 2005

Overview of five years of research on the management of downy mildew of lima bean.  Delaware Vegetable Growers Association Meeting, Harrington, DE, Jan 11, 2005.

Evaluation of lima bean cultivars for resistance to Phytophthora phaseoli. Mid-Atlantic

Vegetable Workers Meeting.  Newark, DE, November 7, 2003.

Update on downy mildew of lima beans on Delmarva.  Delaware Vegetable Growers Association Annual Meeting, Harrington, DE, Jan 10, 2003.

The Delaware and National Plum Pox Potyvirus Survey.  Delaware Invasive Species Conference, Dover, DE, March 10, 2002.

Update on downy mildew of lima beans on Delmarva.  Delaware Vegetable Growers Association Annual Meeting, Milford, DE, Jan. 7, 1999.

Integrated management strategies for control of insect transmitted viruses in selected vegetable crops.  1998.  Moroccan Integrated Pest and Disease Management National Symposium, Agadir, Morocco.

Update on soybean severe stunt: A soilborne virus disease. Delaware Crop Improvement Association Annual Meeting, Felton, DE, Feb. 24, 1997.

Occurrence of downy mildew of lima beans on Delmarva.  Delaware Vegetable Growers Annual Meeting, Dover, DE, Jan 18, 1995.

Squash viruses; problems and solutions.  Delaware/Maryland Vegetable Growers Annual Meeting, Dover, DE, Jan. 13, 1994.

Potato viruses in Delaware potatoes.  Delaware/Maryland Vegetable Growers Annual Meeting, Dover, DE, Jan. 14, 1994.

Virus identification, elimination and micropropagation in mashua and zannoria blanca.  USDA Foreign Disease and Weed Research Laboratory, Ft. Detrick, Frederick, MD, May 26, 1993.

Impact of viruses on plant growth, development and productivity.  Department of Biological Sciences, California State Polytechnic University, Pomona, CA, May 17, 1993.

Methods for the identification of diseases caused by viruses in economically important plants of Ecuador, National Seminar on Virus Diseases and Plant Quarantine.  Ambato, Ecuador, April 15, 1993.

Etiology and control of soybean severe stunt, Mid-Atlantic Soybean Workers Meeting, Beltsville, MD, Jan. 29, 1992.

Virus problems in tomatoes and peppers, Delaware-Maryland Vegetable Conference, Salisbury, MD, Dec. 13, 1991.

Impact of plant viruses on germplasm collection, Second National Congress on Plant Genetic Resources, Quito, Ecuador, April 12, 1991.

Tomato spotted wilt virus and western flower thrips, Longwood Gardens in-service training, Kennett Square, PA, Dec. 12, 1990.

Effect of virus infection on tissue culture clones and methods for virus eradication, First National Congress on Plant Tissue Culture, Ambato, Ecuador, Sept. 20, 1990.

Tomato spotted wilt virus in processing tomatoes, Delaware Vegetable Growers Meeting, Dover, DE, Jan.11, 1990.

Soybean severe stunt disease, Department of Plant Pathology and Weed Science at Mississippi State University, Starkville, MS, Aug. 3, 1989.

Soybean severe stunt disease, Delaware Crop Improvement Association Annual Meeting, Felton, DE, Mar. 21, 1989.

Tomato spotted wilt virus: a threat to the greenhouse industry, Peninsula Horticultural Society  Annual Meeting, Salisbury, MD, Nov. 9, 1988.

Soybean Severe Stunt Disease, Mid-Atlantic Soybean Association Annual Meeting, Georgetown, DE, Aug. 23, 1988.

Asparagus production for Maryland, in-service training University of Maryland Cooperative Extension Service, College Park, MD, March 29, 1988.

Vegetable gardening, University of Delaware Master Gardeners Program, Newark, DE, March 16, 1988.

Virus diseases of vegetables, Fieldsman’s Vegetable Production Short Course, Delaware Cooperative Extension Service, Dover, DE, Feb. 22, 1988.

Virus diseases of vegetables, Delaware Vegetable Growers meetings, Dover, DE, Jan. 13, 1988.

Asparagus production in Delaware, Delaware Vegetable Growers meeting, Dover, DE, Jan. 29, 1987.

Asparagus production on Delmarva, Peninsula Horticultural Society Annual Meeting, Salisbury, MD, Dec. 4, 1986.

PROFESSIONAL MEETINGS CHAIRED

International congress of plant pathology 2018, Boston, MA, August 2018

The future of biotechnology and GMOs in agriculture, APS Potomac Division Annual Meeting, Newark, DE, March 22, 2000.

Integrated management strategies for control of insect-transmitted viruses.  Moroccan Integrated Pest and Disease Management National Symposium, Agadir, Morocco.  April 19-22, 1998.

New Technologies in Plant Pathology Symposium, APS Potomac Division 50th Annual Meeting, St. Michaels, MD, March 26, 1993.

Graduate Student Paper Competition, APS Potomac Division 50th Annual Meeting, St. Michaels, MD, March 25, 1993.

Virology Session, APS Potomac Division Meeting, Newark, DE. March 19, 1992.

Viral Disease Session, APS Annual Meeting, Grand Rapids, MI, Aug. 8, 1990.

Vegetable Session, Northeastern Division American Society for Horticultural Science Meeting, Chadds Ford, PA, Jan. 12, 1990.

Vegetable Session of the 12th Annual Delaware Vegetable Growers Meeting, Dover, DE, Jan. 11, 1990.

Vegetable Session, International Stand Establishment Conference, Lancaster, PA, April 26, 1988.

General Session at Mid-Atlantic Food Processors Meeting, Ocean City, MD, Nov. 24, 1987.

Virology Session, APS Potomac Division Meeting, Newark, DE, March 26, 1987.

 

WORKSHOPS AND SYMPOSIA DELIVERED

USAID Farmer to Farmer Growers Summit Jan 29, 2013.   Discussion of Area Wide Management of TSWV and Thrips in the Constanza-Tireo Valleys.  Alto Cerro Hotel, Constanza.

USAID Farmer to Farmer Symposium.   Jan 16 – Feb 1, 2013.  Microgreen Production in the Dominican Republic.  Delivered to 160 potential growers in Jarabacoa, Santiago and Constanza, Dominican Republic.

USAID Farmer to Farmer Symposium.   May 28-29, 2012, Sustainable greenhouse vegetable production was provided to 20 greenhouse vegetable growers in Jarabacoa, Dominican Republic.

IICA Workshop, Ocho Rios, Jamaica, May 31 to June 2, 2011.  A three day workshop on sustainable greenhouse vegetable production was provided to 30 greenhouse growers.

The Lima Bean Forum and Processors Round Table.  Dec. 10, 2009.  Coordinated and developed the Forum and Round Table at the University of Delaware’s Research and Education Center in Georgetown with 7 invited speakers, 75 growers and 8 vegetable processors in attendance.

USAID Farmer to Farmer Symposium on “Greenhouse Vegetable Production and Pathology in Jamaica”, April 30, 2009.  Coordinated and delivered to 20 local greenhouse producers.

USAID Farmer to Farmer Symposium “Greenhouse Vegetable Production and Pathology”.  Oct. 30, 2009.  Coordinated and delivered to 85 regional greenhouse produces in Jarabacoa, Dominican Republic.

USAID Farmer to Farmer Symposium on “Greenhouse Vegetable Production and Pathology” in Jamaica”, Coordinated and delivered on April 23 (Mandeville 50 growers) and April 24 (Montego Bay – 40 growers), 2008.

USAID Farmer to Farmer Symposium on “Greenhouse Vegetable Production and Pathology” in Jamaica”, April 27, 2007.  Coordinated and delivered to 27 growers and students in Green Island, Hanover Parish, Jamaica.

ISEQ High School Teachers Workshop, “Plants, Soil, Biology”, University of Delaware, July 15, 2005.

Co-Chaired workshop,  “Plant Pathology for Middle and High School Biology Teachers”,  Annual APS meeting, New Orleans, LA, sponsored by the Teaching and Youth Committees of APS, August 12, 2000.

Delivered invited workshop, “Plant Pathology for Delaware Middle and High School Biology Teachers”, Rehoboth Beach, DE, sponsored by the Delaware Biology Teachers Association, April 17-19, 1997.

Delivered invited workshop, “Plant Pathology for Delaware Middle and High School Biology Teachers”, Dover, DE.  Sponsored by DownState Quest and Delaware Science Teachers, March 6, 1996.

Delivered invited workshop, “Third National Short-Course in Plant Virology”, Quito, Ecuador.  Sponsored by USAID, the University of Delaware and AMDE, June 19-21, 1995.

Delivered invited workshop, “Second National Short-Course in Plant Virology, Ambato, Ecuador.  Sponsored by AMDE, USAID, and the Foundation for Agriculture (FUNDAGRO), April 13-14, 1993.

Delivered workshop, “First National Short-Course in Plant Virology”, at AMDE Corp Ambato, Ecuador.  Sponsored by the University of Delaware, AMDE, USAID, FUNDAGRO, April 15-18, 1991.

PEER REVIEW OF RESEARCH PROPOSALS AND JOURNAL ARTICLES

5 journal articles reviewed for APS journals, 2014

6 journal articles reviewed for APS journals, 2013

2 journal articles reviewed for APS journals, 2012

4 journal articles reviewed for APS journals, 2011

3 journal articles reviewed for APS Education Center, 2010

5 journal articles reviewed for Plant Disease, 2009.

5 journal articles reviewed for Plant Disease, 2007.

13 USDA-ARS Research Proposals (OSQR panel chair), 2007

6 proposals for USAID-MERC and CDR program, 2004.

5 journal articles reviewed for Plant Disease, 1999.

9 journal articles reviewed for Plant Disease, 1998.

7 disease notes reviewed for Plant Disease, 1998.

10 journal articles reviewed for Plant Disease, 1997.

6 disease notes reviewed for Plant Disease, 1997.

12 journal articles reviewed for Plant Disease, 1996.

10 disease notes reviewed for Plant Disease, 1996.

6 proposals as primary reviewer: Agency for International Development, 1992.

2 journal articles reviewed for American Society Horticultural Sciences, 1992

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Contact Information
Tom Evans

Professor

Plant and Soil Sciences
152 Townsend Hall

Newark, DE 19716
Phone: (302) 831-2534

Email: tomevans@udel.edu