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United States Department of Agriculture

Agricultural Research Service

Stefan T. Jaronski

Research Entomologist


Stefan Jaronski.Stefan T. Jaronski

 

Phone: 406.433.9486
Fax: 406.433.5038
 

 

 

EducationCurrent ResearchResearch ExperienceRelated Web PagesPublications • SymposiaAbstracts



  

Additional Pages: Research Projects,* Publications*

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


 
 
 

EDUCATION

 

B.S. 1969 Manhattan College, Riverdale NY
M.S. 1972 Cornell University, Ithaca NY
Ph. D. 1978 Cornell University, Ithaca NY

 

 

 

Development of Grasshopper Biocontrol Agents a Lengthy Process 
(PDF; 315KB)   
The Roundup (www.esidney.com) By Lois Kerr, June 2010, p. 17-18

 

 

NPARL Research Entomologist Stefan Jaronski and Biological Science Technician Julie Grace hosted a Solid Substrate Fermentation Workshop for ARS scientists from related programs Feb. 16 - 18, 2005 at the Sidney ARS facility.  In addition to the workshop, Grace developed a short how-to manual illustrating the techniques discussed during the workshop.  Click here to download The Art of Fermentation. (PDF; 1.39 MB)

 


CURRENT RESEARCH

 

My research at Sidney centers on biocontrol of grasshoppers on U.S. rangeland, as well as continuation of older research on management of soil dwelling insect pests of various crops, including sugar beets and corn. My grasshopper work concerns evaluating new technologies and new insect pathogenic fungi for the microbial control of grasshoppers, in close collaboration with USDA APHIS CPHST. This research includes identification of baits, and chemical synergists, as well as new, better fungi and other microorganisms, and taking such technologies from the lab bench to the field.  In the process I have created small scale solid substrate mass production systems based on my industrial experience which not only allows Kg amounts of fungus spores for testing, but also to provide technical advice about such technology worldwide. As a side project I am studying the population genetics of Beauveria bassiana derived from grasshoppers using molecular techniques and comparing the molecular data with other phenotypical charactersitics of the more than 400 Beauveria isolates.  My soil insect-targeted research is directed towards developing a practical mycoinsecticide, based on discovery of Metarhizium microsclerotia, that can be transferred to industry for commercialization for use against soil pest insects (sugarbeet root maggot, cabbage maggot, corn rootworm).  The sugarbeet research is within the larger context of a biologically based management system for both pests and pathogens, using microorganisms, cultural practices, resistant/tolerant hybrids, and induced systemic response.
 

 

RESEARCH EXPERIENCE

 

I joined NPARL in March 2000 as an insect pathologist after a 17-year career in industry. After a Ph.D. program and two postdoctoral appointments concerning microbial control of mosquitoes, I did an abrupt left turn and (a) left the academic community for industry, (b) changed from medical entomology to agricultural pests. From 1983 to 1992, I worked at Abbott Laboratories as an insect pathologist, during which time my research involved commercial development of Beauveria bassiana and Bacillus thuringiensis for use against a wide variety of insects. In 1992 I switched to Mycotech Corp., Butte MT, a small, venture-capital biotech group commercializing Beauveria-based mycoinsecticides. There, I spent 8 years involved in all aspects of commercial development of the fungus – from the early basic research through field trials to generation of registration data, from basic mycology to formulation chemistry, from science to marketing. My last position prior to joining ARS was Manager of Biopesticide Research and Development for Mycotech.
 

 

RELATED WEBPAGES

 

Homing in on Hopper Hordes

Grasshopper Research at NPARL

Grasshoppers: Their Biology, Identification and Management

Microbes for Sugar Beet Maggots (PDF; 24 KB)

Pest Management Research Unit Projects

 

 

ARS: NEWS & EVENTS (This link leads to Dr. Jaronski'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.

  • Cossentine, J., Jaronski, S., Thistlewood, H., Yee, W.L. 2011. Impact of Metarhizium brunneum (Hypocreales: Clavicipitaceae) on pre-imaginal Rhagoletis indifferens (Diptera: Tephritidae) within and on the surface of orchard soil. Biocontrol Science and Technology. 21(2): 1501-1505. (PDF; 204 KB)

  • Foster, N.R., Jaronski, S., Reuter, K.C., Black, L.R., Schlothauer, R.J., Harper, J.D. 2011. Simulated aerial sprays for field cage evaluation of Beauveria bassiana and Metarhizium brunneum (Ascomycetes: Hypocreales) against Anabrus simplex (Orthoptera: Tettigoniidae) in Montana. Biocontrol Science and Technology. 21(11): 1331-1350. (PDF; 619 KB)

  • Cossentine, J., H. Thistlewood, M. Goettel and S.T. Jaronski. 2010. Susceptibility of preimaginal western cherry fruit fly, Rhagoletis indifferens (Diptera: Tephritidae) to Beauveria bassiana (Balsamo) Vuillemin (Deuteromycotina: Hyphomycetes). J. Invertebr. Pathol 104(2): 105-109. (PDF; 153 KB)

  • Dunkel, F.V., S.T. Jaronski, S.U. Meiler, C.W. Sedlak, and K.D. La Veaux-Veo. 2010. Effects of steam-distilled shoot extract of Tagetes minuta (Asterales: Asteraceae) and entomopathogenic fungi on larval Tetanops myopaeformis (Röder). Environ. Entomol. 39(3): 979-988. (PDF; 128 KB

  • Foster, N.R., Jaronski, S., Reuter, C.K., Black, L.R. 2010. Explaining mycoinsecticide activity: poor performance of spray and bait formulations of Beauveria bassiana and Metarhizium brunneum against Mormon cricket in field cage studies. Journal of Orthoptera Research. 19(2): 303-313. (PDF; 961 KB)

  • Jackson, M.A., C. Dunlap and S.T. Jaronski. 2010. Ecological considerations in producing and formulating fungal entomopathogens for use in insect biocontrol. In, Ecology of Fungal Entomopathogens. (H.E. Roy, F. E. Vega, D. Chandler, M. Goettel, J.K. Pell, and E. Wajnberg, eds.) Springer, Dordrecht. pp. 129-146. (PDF; 451 KB)

  • Jaronski, S.T. 2010. Ecological Factors in the Inundative Use of Fungal Entomopathogens. BioControl 55:159–185. (PDF; 760 KB)

  • Searle, K., N. Hobbs, and S. Jaronski. 2010. Asynchrony, fragmentation, and scale determine benefits of landscape heterogeneity to mobile herbivores. Oecologia. 163(3): 815-824.  (PDF; 410 KB)

  • Srygley, R.B., and S. Jaronski. 2010. Immune response of Mormon crickets that survived infection by Beauveria bassiana. Psyche. Vol. 2011, 5 pp., Article ID 849038, DOI:10.1155/2011/849038. (PDF; 1218 KB)

  • Wraight, S.P., M.E. Ramos, P.B. Avery, S.T. Jaronski, and J.D. Vandenberg. 2010. Comparative virulence of Beauveria bassiana isolates against Lepidopteran pests of vegetable crops. J. Invertebr. Pathol. 103(3): 186-199. (PDF; 239 KB)

  • de Crecy, E., S.T. Jaronski, B. Lyons, T. J. Lyons, and N. O. Keyhani. 2009. Directed evolution of a filamentous fungus to thermotolerance. BMC Biotechnology 2009, 9:74. doi:10.1186/1472-6750-9-74. (PDF; 567 KB)

  • Jackson, M.A. and S.T. Jaronski. 2009. Production of microsclerotia of the fungal entomopathogen Metarhizium anisopliae and their use as a biocontrol agent for soil-inhabiting insects. Mycol. Res., 113(8):842-850. (PDF; 388 KB)

  • Jaronski, S.T. and M.A. Jackson. 2009. Further Progress with Metarhizium microsclerotial production. “Insect Pathogens and Insect Parasitic Nematodes” (R-U Ehlers, N. Crickmore, J. Enkerli, I Glazer, M. Lopez-Ferber and C. Tkaczuk, eds. Bulletin IOBC/wprs 45: 275-278.

  • Searle, K.R., N.T. Hobbs and S.T. Jaronski 2009. How does habitat fragmentation influence consumers feeding on pulsed resources? Oecologia 2010, pp.1-10.

  • Turnbow, J. H., K. O’Neill, and S. T. Jaronski. 2009. Thermal biology of the mormon cricket (Anabrus simplex Haldeman [Orthoptera: Tettigoniidae]): I. behavioral thermoregulation. Journal of Insect Science - Submitted and in revision.

  • Jaronski, S. 2008. Australian Metarhizium anisopliae var. Acridum strain FI985 vs. Beauveria bassiana Strain GHA - laboratory efficacy against North American acridids and anabrus simplex. Advances in Applied Acridology.

  • Jaronski, S.T. and M.A. Jackson. 2008. Efficacy of Metarhizium anisopliae microsclerotial granules. Biocont. Sci. Technol. 18(8): 849-863. (PDF; 120 KB)

  • Jaronski, S.T. 2007. Soil Ecology of the Entomopathogenic Ascomycetes: A Critical Examination of What We (Think) We Know. In, Use of Entomopathogenic Fungi in Biological Pest Management (K. Maniana and S. Ekesi, eds.) Research SignPosts, Trivandrum India. Pp. 91-144.

  • Jaronski, S.T., C. Fuller-Schaeffer, K. Jung, M. Boetel and A. Majumdar. 2007. Challenges in using Metarhizium anisopliae for biocontrol of Sugarbeet Root Maggot, Tetanops myopaeformis. Working Group “Insect pathogens and Entomopathogenic Nematodes.” J. Enkerli, ed. Bulletin IOBC/wprs 30(7): 119-124.

  • Kabaluk, T., M. Goettel, Jerry Ericsson, M. Erlandson, B. Vernon, S. Jaronski, K. Mackenzie, L. Cosgrove. 2007. Promise versus performance: Working toward the use of Metarhizium anisopliae as a biological control for wireworms. Working Group “Insect pathogens and Entomopathogenic Nematodes.” J. Enkerli, ed. Bulletin IOBC/wprs 30(7): 69-76.

  • Majumdar, A., M. Boetel, and S. T. Jaronski. 2007. Discovery of Fusarium solani as a naturally occurring pathogen of Sugarbeet Root Maggot (Diptera: Ulidiidae) pupae: prevalence and baseline susceptibility. J. Invertebr. Pathol. 97 (1): 1-8. (PDF; 500 KB)

  • Tharp, C.I., S.L. Blodgett, and S.T. Jaronski. 2007. Control of Wireworms (Elateridae) in Potatoes with Microbial Metarhizium, 2006. Arthropod Management Tests 32:E43. http://www.entsoc.org/Protected/AMT/members_only/AMT32/E/E43.pdf 

  • Campbell, L.G., Boetel, M., Jonason, N.B., Jaronski, S., Smith, L. 2006. Grower-Adoptable Formulations of the Entomopathogenic Fungus Metarhizium anisopliae (Ascomycota: Hypocreales) for Sugarbeet Root Maggot (Diptera: Ulidiidae) Management. Environmental Entomology. 35(4):986-991. (PDF; 93 KB)

  • Jaronski, S., Campbell Jr, J.E. 2006. Integration of a resistant sugarbeet variety with the insect pathogenic fungus Metarhizium anisopliae to manage the sugarbeet root maggot. Sugarbeet Research and Extension Reports. 36: 185-189.

  • Majumdar, A., Boetel, M., Jaronski, S., Dregseth, R.J., Schroeder, A.J. 2006. Cereal cover crops and a microbial insecticide for integrated control of sugarbeet root maggot. Sugarbeet Research and Extension Reports. 36:222-227. (PDF: 51 KB)

  • Bruck, D.J., Snelling, J., Dreves, A.J., Jaronski, S. 2005. Laboratory Bioassays of Entomopathogenic Fungi for Control of Delia Radicum (L.) Larvae. Journal of Invertebrate Pathology. 89:179-183. (PDF; 197 KB)

  • Jaronski, S.T., Grace, J.A., Schlothauer, R. 2005. Metarhizium anisopliae for biocontrol of sugarbeet root maggot: constraints and challenges. Proceedings, 33rd Biennial Meeting, American Society of Sugar Beet Technologists. pp. 185-187. (PDF; 4017 KB)

  • Leland, J.E., Mcguire, M.R., Grace, J.A., Jaronski, S.T., Ulloa, M., Park, Y.H., and Plattner, R.D. 2005. Strain selection of a fungal entomopathogen, Beauveria bassiana, for control of plant bugs (Lygus spp.) (Heteroptera: Miridae). Biological Control. 35(2):104-114. (PDF; 409 KB)

  • Dunkel, F.V., and Jaronski, S.T. 2003. Development of a bioassay system for the predator Xylocoris flavipes (Reuter) and its use in subchronic toxicity/pathogenicity studies of Beauveria bassiana (Bals.) Vuill. Strain GHA. Journal of Economic Entomology 96(4): 1045-1053.

  • Jaronski, S.T. 2003. Mycoinsecticides—Regulations and Risks. Symposium, Assessing impact of inundative biocontrol fungi. 4th National Integrated Pest Management Symposium, Indianapolis IN, April 8-10, 2003.

  • Jaronski, S. Sugarbeet Root Maggots Can Cause Future Headaches in Area. Miscellaneous Publishing Information Bulletin. 2003. Available from Sidney Herald-Leader, Sidney, Mt.

  • Jaronski, S.T., Goettel, M.A., and Lomer, C. 2003. Regulatory Requirements for Ecotoxicological Assessments of Microbial Insecticides – How Relevant are They? In: Assessment of Environmental Safety of Biological Insecticides (H. Hokkanen, A. Hayek, eds.) Kluwer Academic Publishers, Dordrecht Netherlands. pp. 237-260.

  • Majumdar, A., Boetel, M.A., Jaronski, S.T., Dregseth, R.J., and Schroder, A.J. 2003. Integration of the fungal entomopathogen and cereal cover crops for Sugar beet root maggot management – first year trial. Sugar beet Research and Extension Reports 33:163-169.

  • Meikle, W.G., Jaronski, S.T., Mercadier, G., and Quimby, P.C. 2003. A distributed delay routine-based simulation model of Beauveria bassiana conidial stability in response to environmental stressors. Biocontrol. 48: 561-578. (PDF; 136 KB)

  • Inglis, G. D., Jaronski, S. T., and Wraight, S. P. 2002. Use of spray oils with entomopathogens. In: Spray Oils Beyond 2000: Sustainable Pest and Disease Management. (G. A. C. Beattie & D. M. Watson, Eds.). University of Western Sydney, Hawkesbury, Australia. pp. 302-312.

  • Johnson, D.J., Smits, J. E., Jaronski, S.T., and Weaver, D.K. 2002. Assessment of health and growth of ring-necked pheasants following consumption of infected insects or conidia of entomopathogenic fungi, Metarhizium anisopliae var. acridum and Beauveria bassiana, from Madagascar and North America. J. Toxicol. Environ. Health. 65(24): 2145-2162.

  • Brownbridge, M., Costa, S., and Jaronski, S.T. 2001. Effects of in vitro passage of Beauveria bassiana on virulence to Bemisia argentifolii. J. Invertbr. Pathol. 77 (4):280-283.

  • Vandenberg, J. D., Sandvol, L. E., Jaronski, S. T., Jackson, M. A., Souza, E. J., and Halbert, S. E. 2001. Field efficacy of Beauveria bassiana and Paecilomyces fumosoroseus for the Russian wheat aphid in irrigated wheat. Southwestern Entomologist 26(1): 73-85. (PDF; 704 KB)

  • James, R.R., and Jaronski, S.T. 2000. Effect of low viability on infectivity of Beauveria bassiana conidia toward the Silverleaf whitefly. Journal of Invertebrate Pathology. 76 (3): 227-228.
  • Wraight, S. P., Carruthers, R.I., Jaronski, S.T., Bradley, C.A., Garza, C.J., and Galaini-Wright, S. 2000. Evaluation of the entomopathogenic fungi Beauveria bassiana and Paecilomyces fumosoroseus for the microbial control of the silverleaf whitefly, Bemisia argentifolii. Biological Control. 17: 203-217. (PDF; 198 KB)

SELECTED SYMPOSIA AND INVITED PRESENTATIONS (LAST 10 YEARS) 

  • Jaronski, S., Jackson, M.A., Dunlap, C.A., Meikle, W.G. 2010. Novel approaches in formulation of entomopathogenic fungi for control of insects in soil, foliar, and structural habitats: thinking outside the box and expecting the unexpected. In: Proceedings of the 10th International Colloquium on Invertebrate Pathology and Microbial Control. 43th Annual Meeting of the Society for Invertebrate Pathology Conference , July 11-15, 2010, Trabzon, Turkey. 2010 CD-ROM. (PDF; 1003 KB)

  • Jaronski, S. 2007. Mycosis Inhibits Grasshopper Necrophagy. Entomological Society of America Miscellaneous Publications. Paper No. 31456. Available: http://esa.confex.com/esa/2007/techprogram/paper_31456.htm

  • Jaronski, S., Fuller Schaefer, C.A., Larson, B., Jacobsen, B.J. 2007. Effect of three bacterial disease-control agents on the entomopathogenic fungi, Metarhizium anisopliae and Beauveria bassiana. Proceedings, 34th Biennial Meeting American Society of Sugarbeet Technologists, February 28-March 3, 2007, Salt Lake City, Utah. p. 206-210. (PDF; 2947 KB)

  • Jaronski, S.T., Grace, J.A., and Schlothauer, R. 2005. Metarhizium anisopliae for Biocontrol of Sugarbeet Root Maggot: Constraints and Challenges. Proceedings, 33rd Biennial Meeting, American Society of Sugar Beet Technologists. Pp. 185-187.

  • Leland, J.E., Mcguire, M.R., and Jaronski, S. 2005. Field Evaluation of Beauveria bassiana Isolates for Control of Plant Bug (Lygus SPP.). National Cotton Council Beltwide Cotton Conference. 

  • Jaronski, S.T. 2003. Potential of Sugar beet root maggot biological control: Is there hope? Symposium on Sugar beet Root Maggot Management – Multidisciplinary and Innovative Approaches. 51st Annual Meeting of the Entomological Society of America, Cincinnati OH, Oct. 26-29, 2003.

  • Jaronski, S.T. 2003. Commercializing Mycoinsecticides: The U.S. Experience. In Symposium on Microbial Control – Research to Implementation. 51st Annual Meeting of the Entomological Society of America, Cincinnati OH, Oct. 26-29, 2003.

  • Jaronski, S.T. 2003. Commercializing Mycoinsecticides: The U.S. Experience. In Symposium on "Is bigger always better? A comparison of industrial-scale vs. cottage-scale production of microbial pesticides." 2003 Annual Meeting Society for Invertebrate Pathology, Burlington VT July 26-30, 2003.

  • Majumdar, A., Boetel, M.A., Jaronski, S.T., Dregseth, R.J., and Schroeder, A.J. 2003. Integration of a fungal entomopathogen and cereal cover crops for Sugar beet root maggot management. 33rd Annual Sugar beet Reporting Session. Sugar beet Research and Education of Minnesota and North Dakota, Fargo ND, Jan 8, 2003. [Oral Presentation]

  • Dregseth, R.J., Jonason, N.B., Boetel, M.A., Campbell, L.A., Schroeder, A.J., and Jaronski, S.T. 2003. Mycoinsecticide methodology for Sugar beet root maggot management. 33rd Annual Sugar beet Reporting Session. Sugar beet Research and Education of Minnesota and North Dakota, Fargo ND, Jan 8, 2003. [Oral Presentation]  
     

SELECTED PROCEEDINGS AND ABSTRACTS (LAST 10 YEARS) 

  • Jackson, M.A., Jaronski, S. 2009. Production of Microsclerotia of Metarhizium anisopliae Using Deep-Tank Liquid Fermentation [abstract]. Society for Invertebrate Pathology Annual Meeting. Abstract No. 114.

  • Wraight, S.P., Jaronski, S., Ramos, M., Griggs, M., Vandenberg, J.D. 2009. Statistical considerations in the analysis of data from replicated bioassays. Meeting Abstract. 42:82.

  • Jackson, M.A., Jaronski, S. 2008. Production of Microsclerotia of the Entomopathogenic Fungus Metarhizium anisopliae in Liquid Culture [abstract]. American Society for Microbiology. Abstract No. O-053.

  • Jackson, M.A., Schisler, D.A., Shearer, J.F., Jaronski, S. 2007. Liquid culture production of fungal microsclerotia for use in biological control [abstract]. XV Congress of European Mycologists, St. Petersburg, Russia. p. 191.

  • Majumdar, A., Boetel, M.A., Jaronski, S., Dregseth, R., and Schroeder, A. Integration of Metarhizium Anisopliae and Cover Crops for Controlling Sugarbeet Root Maggot. Society for Invertebrate Pathology Annual Meeting. Burlington, Vt, July 26-30 2003. Abstract. P. 71.

  • Jaronski, S.T. Commercializing Mycoinsecticides: the U.S. Experience. Abstract. 2003 Annual Meeting of the Society for Invertebrate Pathology, Burlington VT Usa July 26-30, 2003. P. 36.

  • Majumdar, A., Boetel, M.A., Jaronski, S., Dregseth, R.J., and Schroder, A.J. Bio-Based Sugarbeet Root Maggot (Diptera: Otitidae) Management by Integrating Cereal Cover Crops and the Fungal Entomopathogen Metarhizium Anisopliae. Ncb-Esa North Central Branch Entomological Society of America. 2003. Poster Abstract.

  • Jaronski, S.T., Grace, J., and Gaffri, S. 2003. Development of a biologically based pest and disease management system in sugar beets. 51st Annual Meeting of the Entomological Society of America, Cincinnati OH, Oct. 26-29, 2003.

  • Jaronski, S.T., Grace, J., and Gaffri, S. 2003. Development of a Biologically Based Pest and Disease Management System in Sugar Beets. 2003 Annual Meeting Society for Invertebrate Pathology, Burlington VT July 26-30, 2003. P. 51.

  • Wraight, S.P., Ramos, M.E., Williams, J.E., Avery, P.B., Jaronski, S.T., and Vandenberg, J.D. 2003. Comparative virulence and host specificity of Beauveria bassiana isolates assayed against lepidopteran pests of vegetable crops. 2003 Annual Meeting Society for Invertebrate Pathology, Burlington VT July 26-30, 2003. 36:36.

  • Jaronski, S.T., Dregseth, R., Boetel, M., Jacobsen, B., and Larson, B. 2003. Post-planting Applications of Insect Pathogenic Fungi for the Control of Sugar beet Root Maggot Within a Bio-Based System for Management of Sugar beet Pests and Diseases. 33rd Annual Sugar beet Reporting Session. Sugar beet Research and Education of Minnesota and North Dakota, Fargo ND, Jan 8, 2003.

  • Jaronski, S.T., Jacobsen, B., Zidack, N., and Larson, B. Development of a Biologically-based Pest and Disease Management System in Sugar Beets. 4th National Integrated Pest Management Symposium, Indianapolis IN, April 8-10, 2003. (Poster)

  • Jonason, N.B., Boetel, M.A., Campbell, L.G., Smith, L.J., and Jaronski, S.T. 2002. Development of bioinsecticide methodology for sugar beet root maggot (Diptera: Otitidae) management. Entomological Society of America, North Central Branch Meetings, Lansing MI March 24-27, 2002.

  • Jaronski, S., Chernysh, A.V., Schell, S.P., and Lockwood, J.A. Enhancement of Beauveria Bassiana Against Grasshoppers with Vegetable Oil Carriers. Entomological Society of America Annual Meeting. 2002. Abstract #d0373.

  • Avery, P., and Jaronski, S. Effect of Induced Systemic Resistance on the Susceptibility of Insect Herbivores to Entomopathogens. Entomological Society of America Annual Meeting. 2002. P. 39.

  • Jaronski, S.T. 2002. Pathogen prevalence among Grasshoppers populations as affected by rotational grazing – an interim report. Grasshopper Management Board Meeting, Denver CO 1/30-31/02.

  • Jaronski, S.T. 2001. "Orthopteran Thermoregulation and Behavioral Fever in Central Alaska – A Chilling Prospect for Entomopathogens such as Beauveria bassiana?" Proc. 34th Ann. Meeting Society for Invertebrate Pathology, Aug 25-30, 2001, Netherlands.

  • Jaronski, S.T., Rex, T., and Lutz, R. 2000. Screening Deuteromycete fungi for the control of larval fleas. 33rd Annual Meeting of the Society for Invertebrate Pathology, University of Guanajuato, Mexico, Aug.13-18, 2000.

  • Jaronski, S.T., and Liebman, J. 2000. Direct spore counts vs. colony forming unit counts as methods for quantifying viable Beauveria bassiana conidia. 33rd Annual Meeting of the Society for Invertebrate Pathology, University of Guanajuato, Mexico, Aug.13-18, 2000.

  • Brownbridge, M., Costa, S. and Jaronski, S.T. 2000. Effect of in vitro passage of Beauveria bassiana on virulence to Silverleaf whitefly. 33rd Annual Meeting of the Society for Invertebrate Pathology, University of Guanajuato, Mexico, Aug.13-18, 2000.

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Last Modified: 5/13/2013