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United States Department of Agriculture

Agricultural Research Service

Anthony J. Caesar (Tony)

Research Plant Pathologist


Anthony Caesar.Anthony J. Caesar

 

Phone: 406.433.9412
Fax: 406.433.5038
 

 

 

EducationCurrent ResearchResearch ExperienceRelated Web PagesSelected Publications

 


 

Additional Pages: Research Projects,* Publications*

*Taken from the Agricultural Research Information System (ARIS) database. 
 
 
 
 
 

EDUCATION

 

B.S. Plant Science 1978 University of California, Davis
M.S. Plant Pathology 1982 Cornell University
Ph. D. Plant Pathology 1987 Cornell University



CURRENT RESEARCH

 

Investigations center on the role of plant pathogens in the biological control of exotic, highly invasive weeds. The goal is to develop knowledge essential to enabling the incorporation of plant pathogens into biological, cultural and reduced-chemical control programs. A principal theme of my research is to derive the practically useful elements of how plant pathogens act in direct combination with insect damage to target weeds following release and establishment of agents. This avenue of research seeks both to develop the means of supplementing insect releases with plant pathogens for greater and more consistent impact and criteria for selecting new insect and plant pathogen agents. More precise criteria for selecting new classical can result in considerable cost reductions (180,000 USD per new agent) and reduced environmental risks.  

 

 

 

NPARL Plant Pathologists Robert T. Lartey and Anthony J. Caesar are co-editors of a new book just published by Research Signpost of India entitled “Emerging Concepts in Plant Health Management, 2004.”  Click here for more information about the book on the Research Signpost's Website.  To order from the publisher send an e-mail to ggcom@vsnl.com or admin@rsflash.com citing the name of the book, volume number, the required number of copies and the purchaser’s name and mailing address. You can also go to the website at http://www.ressign.com.

 

RESEARCH EXPERIENCE

 

Before joining the ARS rangeland weeds lab in 1990 to investigate the utility as plant pathogens for biocontrol of perennial rangeland weeds, as a Chancellor’ Postdoctoral Fellow, I conducted research on rhizosphere bacteria in the Plant Pathology Department at U. C. Berkeley, focused on phenotypic traits associated with beneficial rhizosphere bacteria to facilitate more rational screening of candidate plant growth-promoting rhizosphere bacteria. My graduate research was on the use of plant growth promoting rhizosphere bacteria for control of the apple nursery replant problem. Beginning as an undergraduate intern, I was employed periodically by the California Department of Food and Agriculture, lab Services in the fungal plant disease diagnostic lab over the years 1978-84.

 

 

RELATED WEB PAGES

 

Disease-causing Pathogens Key Players in NPARL Biocontrol Research (.pdf)

Pest Management Research Unit Projects

 

ARS: NEWS & EVENTS (This link leads to Dr. Caesar's query within ARS's news and events)

 

 

 

SELECTED PUBLICATIONS (last 10 years)
Please note: The most recent publications by this scientist may not yet be listed here. Please check the ARIS "Publications" page for possible new titles.

  • Lartey, R.T., Caesar, T., Caesar, A.J., Sainju, U.M., Evans, R.G. 2013. First report of spot form net blotch caused by Pyrenophora teres f. maculata on barley in the Mon-Dak area of the US. Plant Disease. 97(1): 143-143.

  • Caesar, A.J., Lartey, R.T., Caesar, T. 2012. Disease Notes: First report of Pilidium concavum causing root lesions of meadow hawkweed in France. Plant Disease. 96(12):1830- 1830.

  • Caesar, A.J., Lartey, R.T., Caesar, T. 2012. First report of a root and crown disease of the invasive weed Lepidium draba caused by Phoma macrostoma. Plant Disease. 96(1):145.

  • Guermache, F., Rodier-Goud, M., Caesar, A.J., Héraud, C., Claude-Bon, M. 2012. Bifluorescence imaging for estimating accurately the nuclear condition of Rhizoctonia spp. Letters in Applied Microbiology. 54(6): 568–571. doi:10.1111/j.1472-765X.2012.03245.x.

  • Sainju, U.M., Caesar, T., Caesar, A.J. 2011. Comparison of soil carbon dioxide flux measurements by static and portable chambers in various management practices. Soil and Tillage Research. 118:123-131.

  • Upendra M. Sainju, Thecan Caesar, Anthony J. Caesar. 2010. Comparison between portable and static chamber methods in measuring soil carbon dioxide fluxes under various management practices. Agriculture, Ecosystems and Environment. Submitted 10/13/2010.

  • Lartey Robert T., Thecan Caesar, Anthony J. Caesar, Andrew Lenssen, Sophia L. Hanson, and Robert G. Evans. 2010. Detection of Pyrenophora teres f teres in field soils by polymerase chain reaction. Submitted 9/21/2010.

  • Caesar, A.J. 2010. The importance of intertrophic interactions in biological weed control. Pest Technology. 5(Special Issue 1): 28-33.  (PDF; 141 KB)

  • Caesar, A.J., Caesar, T., Lartey, R.T. 2010. First report of anthracnose stem Canker of the invasive perennial weed Lepidium draba caused by Colletotrichum higginsianum in Europe. Plant Disease. 94:1166-1166.

  • Caesar, A.J., Caesar, T., Maathuis, M. 2010. Pathogenicity, characterization and comparative virulence of Rhizoctonia spp. from insect-galled roots of Lepidium draba in Europe. Biological Control. 52(2): 140-148. (PDF; 267 KB)

  • Caesar, A.J., Caesar, T., Sainju, U.M. 2010. The plant pathology of native plant restoration. Environmental Research. Volume 4 Issue 3/4.

  • Caesar, T., Lenssen, A.W., Caesar, A.J., Sainju, U.M., Gaskin, J.F. 2010. Effects of tillage on microbial populations associated to soil aggregates under dryland spring wheat system. European Journal of Soil Biology. 46:119-127.

  • Caesar, A.J., Lartey, R.T. 2009. First Report of a Leaf Spot Caused by Alternaria brassicae on the Invasive Weed Lepidium draba in North America. Plant Disease. 93(8):846-846. (PDF; 513 KB)

  • Caesar, A.J., Lartey, R.T., Berner, D.K., Souissi, T. 2009. First report of leaf spot caused by Cercospora bizzozeriana on Lepidium draba in the United States. Plant Disease. 93(1):108-108. (PDF; 107 KB)

  • Caesar, A.J., Lartey, R.T., Caesar, T. 2009. First Report of a Root and Crown Disease caused by Rhizoctonia solani on Centaurea maculosa in Russia. Plant Disease. 93(12): 1350-1350. (PDF; 628 KB)

  • Caesar, T., Lartey, R.T., Solberg Rodier, L.L., Caesar, A.J. 2009. Effects of Basidiomycete laccase on Cercosporin. Journal of Plant Pathology. 91(2):347-355.

  • Caesar, T., Busscher, W.J., Novak, J.M., Gaskin, J.F., Kim, Y. 2008. Effects of Polyacrylamide and Organic Matter on Microbes associated to Soil Aggregation of Norfolk Loamy Sand. Applied Soil Ecology. 40(2):240-249. (PDF; 1238 KB)

  • Caesar, A.J., Lartey, R.T. 2008. First report of crown gall caused by Agrobacterium tumefaciens on Euphorbia esula/virgata in Europe. Plant Disease 92(12):1710-1710. (PDF; 1957 KB)

  • Eskandari, F., Bruckart, W.L., Schaad, N.W., Sechler, A.J., Postnikova, E.N., Caesar, A.J., Coombs, E. 2008. First report of crown gall caused by Agrobacterium sp. on Diffuse Knapweed (Centaurea diffusa). Plant Disease. 92:487. (PDF; 424 KB)

  • Caesar, T., Caesar, A.J., Gaskin, J.F., Sainju, U.M., Busscher, W.J. 2007. Taxonomic diversity of predominant culturable bacteria associated with microaggregates from two different agroecosystems and their ability to aggregate soil in vitro. Applied Soil Ecology. 36(1):10-21. (PDF; 536 KB)

  • Holtz, B., Mckenry, M., Caesar, T., Caesar, A.J. 2006. The effect of tillage on decomposing mulch, Verticillium, the microbial community, soil nutrients, and soil aggregation. California Pistachio Industry Annual Report. p. 103.

  • Caesar, A.J. 2006. Uromyces Scutellatus as a keystone species affecting Euphorbia spp. in Europe as shown by effects on density in the field. Biocontrol Science and Technology. 16:1079-1086. (PDF; 66 KB)

  • Kremer, R.J., Caesar, A.J., and Souissi, T. 2006. Soilborne Microorganisms of Euphorbia Are Potential Biological Control Agents of the Invasive Weed Leafy Spurge. Applied Soil Ecology. 32(1):27-37. (PDF; 180 KB)

  • Sainju, U.M., Lenssen, A.W., Caesar, T., Waddell, J.T. 2006. Carbon sequestration in dryland soils and plant residue as influenced by tillage and crop rotation. Journal of Environmental Quality. 35:1341-1347. (PDF; 90 KB)

  • Caesar, A.J. 2005. Melding Ecology, Weed Biocontrol and Plant Microbial Ecology Can Inform Improved Practices in Invasive Plant Species Biocontrol. Biological Control. 35(3):240-246. (PDF; 203 KB)

  • Lartey, R.T., Caesar, T., Caesar, A.J., Shelver, W.L., Sol, N.I., and Bergman, J.W. 2005. Safflower: A New Host of Cercospora Beticola. Plant Disease. 89(8):797-801.
    (PDF; 320 KB)

  • Thelen, G.C., Vivanco, J.M., Newingham, B., Good, W., Bais, H.P., Landres, P., Caesar, A.J., and Callaway, R.M. 2004. Insect Herbivory Stimulates Allelopathic Exudation by An Invasive Plant and the Suppression of Natives. Ecological Applications. 14:209-217. (PDF; 172 KB)

  • Caesar, T., Caesar, A., and Sainju, U. 2004. Isolation, Identification, and Characterization of Soil Aggregating Bacteria in Soil Microaggregates. Abstracts, American Society of Agronomy Meetings.

  • Lartey, R.T., and Caesar, A.J. 2004. Emerging Concepts in Plant Health Management. In: Robert T. Lartey and Anthony J Caesar, Editors. Research Signpost. Pp. 300.

  • Lartey, R.T., Caesar, T., Caesar, A.J., Shelver, W.L., and Sol, N.I. 2004. Safflower: An Alternate Host of Cercospora Beticola. Phytopathology. 94(6):s57.

  • Caesar, A. J. 2004. Insect-Plant Pathogen Synergisms for the Biological Control of Rangeland Weeds In: Cullen, J. M. (ED.), Proceedings of the XI International Symposium on Biological Control of Weeds, Csiro, Canberra. Pp. 493-495. (PDF; 915 KB)

  • Caesar, A.J., and Kremer, R.J. 2004. Bacterial Communities Associated with a Flea Beetle Used for the Biological Control of the Perennial Weed Euphorbia Esula/virgata. In: Cullen, J. M. (ED.), Proceedings of the XI International Symposium on Biological Control of Weeds, Csiro, Canberra. Pp. 496-499.

  • Bruckart, W.L., Berner, D.K., Caesar, A.J., and Widmer, T.L. Plant Pathology and Biological Control of Invasive Weeds. Biological Control of Invasive Plants in the United States. in Plant Pathology and Biological Control of Invasive Weeds. E.M. Combs, J.K. Clark, G.L. Piper, and A.F. Cofrancesco (Eds). Oregon State University Press, Corvallis, Or. 2004. (PDF; 635 KB)
  • Caesar, A. J. and Kremer, R. J. 2004. Bacterial Communities Associated with a Flea Beetle Used for the Biological Control of the Perennial Weed Euphorbia Esula/virgata. In: Cullen, J. M. (ED.), Proceedings of the XI International Symposium on Biological Control of Weeds, Csiro, Canberra. Pp. 496-499.

  • Caesar, A.J. 2003. Insect-Plant Pathogen Synergisms for the Biological Control of Rangeland Weeds (Duplicated-See Log 159421). Biocontrol Symposium Proceedings.
  • Caesar, A.J. 2003. Synergistic Interaction of Plant Pathogens and Insects in Classical Biological Control of Exotic Rangeland Weeds. XI International Symposium on Biological Control of Weeds.

  • Caesar, A.J. Synergistic Interaction of Plant Pathogens and Insects in Classical Biological Control of Exotic Rangeland Weeds. International Congress of Plant Pathology Abstracts and Proceedings. 2003. Poster.

  • Caesar, A.J. 2003. Synergistic interaction of soilborne plant pathogens and root-attacking insects in classical biological control of an exotic rangeland weed. Biological Control 28: 144-153. (PDF; 187 KB)

  • Boyetchko, S.M., Rosskopf, E.N., Caesar, A.J., and Charudattan, R. Biological weed control with pathogens: Search for candidates to applications. p. 239-274. In: G.G. Khachatourians and D.K. Arora (eds.), Applied Mycology and Biotechnology, Vol. 2. Agriculture and Food Production. Elsevier Science B.V., The Netherlands.

  • Caesar, A.J., Campobasso, G., and Terragitti, G. 2002. Identification, pathogenicity and comparative virulence of Fusarium spp. associated with insect-damaged, diseased Centaurea spp. in Europe. BioControl 47:217-229. (PDF; 206 KB)

  • Kremer, R.J., Caesar, A.J., and Souissi, T. Soilborne Microorganisms of Euphorbia from Europe As Potential Biocontrol Agents of Leafy Spurge (Euphorbia Esula L.). Weed Science Society of America Abstracts. 2001. V. 41. P. 31. 

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Last Modified: 11/18/2014
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