Knudsen, G. R.  2010.  Biofuels: The environmental downside.  ABA Agricultural Management  Comm. Newsletter 14:13-16.

 

Knudsen, G. R.  2010.  Microbial source tracking: Pointing the finger of blame for waterborne pathogens.  ABA Water Quality and Wetlands Comm.  Newsletter 8:(in press).

 

Knudsen, G. R.  2009.  Biotechnology and the environment:  Navigating the regulatory maze.  ABA Young Lawyers Division 201 Practice Series, Environmental Law.  American Bar Association.

 

Kim, T. G., and G. R. Knudsen.  2009.  Colonization of Sclerotinia sclerotiorum sclerotia by a biocontrol isolate of Trichoderma harzianum, and effects on myceliogenic germination.  Biocontrol Sci. and Technol.  19:1081-1085.

 

Knudsen, G. R.  2009.  Biotech crop litigation update.  ABA Agricultural Management Comm. Newsletter 13:5-8.

 

Kim, T. G., and G. R. Knudsen.  2008.  Quantitative real-time PCR effectively detects and quantifies colonization of sclerotia of Sclerotinia sclerotiorum by Trichoderma spp.  Appl. Soil Ecol. 40:100-108.

 

Knudsen, G. R., and L. M. Dandurand.  2007.  Analysis of spatial patterns of rhizoplane colonization.  Pages 109-133 in: R. B. Franklin and A. L. Mills, The Spatial Distribution of Microbes in the Environment.  Springer Press.

 

Dandurand, L. M., G. R. Knudsen, and C. V. Eberlein.  2006.  Susceptibility of five nightshade (Solanum) species to Phytophthora infestans.  Am. J. Potato Res. 83:205-210.

 

Knudsen, G. R.  2006.  Quantifying the metabolic activity of soil- and plant-associated microbes.  Pages 697-703 in: C. Hurst et al. (eds), Manual of Environmental Microbiology, 3rd Edition.

 

Knudsen, G. R., J. P. Stack, S. O. Schuhmann, K. Orr, and C. LaPaglia.  2006.  Individual-based approach to modeling hyphal growth of a biocontrol fungus in soil.  Phytopathology 96:1108-1115.

 

Sudarshana, P., and G. R. Knudsen.  2006.  Quantification and modeling of plasmid mobilization on seeds and roots.  Curr. Microbiol. 52:455-459.

 

Bae, Y. S., and G. R. Knudsen.  2006.  Effect of sclerotial distribution pattern of Sclerotinia sclerotiorum on biocontrol efficacy of Trichoderma harzianum.  Appl. Soil Ecol. 35:21-24.

 

Knudsen, G. R.  2005.  Bacteriology of soils and plants.  In:  S. P. Borriello, P. R. Murray, and G. Funke (eds.), Topley & Wilson's Microbiology & Microbial Infections,10th edition, volume 1, Bacteriology, pages 195-210.  Hoder Arnold.

 

Bae, Y. S., and G. R. Knudsen.  2005.  Soil microbial biomass influence on growth and biocontrol efficacy of Trichoderma harzianum.  Biol. Control 32:236-242.

 

Orr, K. A., and G. R. Knudsen.  2004.  Use of green fluorescent protein and image analysis to quantify proliferation of Trichoderma harzianum in nonsterile soil.  Phytopathology 94:1383-1389.

 

Smolinska, U., M. J. Morra, G. R. Knudsen, and R. James.  2003.  Isothiocyanates produced by Brassicaceae species as inhibitors of Fusarium oxysporum.  Plant Disease 87:407-412.

 

Bae, Y. S., and G. R. Knudsen.  2001.  Influence of a fungus-feeding nematode on growth and biocontrol efficacy of Trichoderma harzianum.  Phytopathology 91:301-306.

 

Dandurand, L. M., and G. R. Knudsen.  2001.  Isolation of microbes from the rhizosphere and phyllosphere.  in:  C. J. Hurst, R. Crawford, G. R. Knudsen, M. J. McInerney, and L. D. Stetzenbach (eds).  Manual of Environmental Microbiology, 2nd ed. American Society for Microbiology, Washington, DC.

 

Hurst, C. J., R. Crawford, G. R. Knudsen, M. J. McInerney, and L. D. Stetzenbach (eds).  2001.  Manual of Environmental Microbiology, 2nd ed..  ASM, Washington, DC.

 

Knudsen, G. R.  2001.  Introduction: Soil, Rhizosphere, and Phyllosphere.  (in:  C. J. Hurst et al. eds) Manual of Environmental Microbiology, 2nd ed. ASM Press.

 

 

Knudsen, G. R.  2001. Quantifying the metabolic activity of soil- and plant‑associated microbes.  (in: C. J. Hurst et al. eds) Manual of Environmental Microbiology, 2nd ed. ASM Press.

 

Bae, Y. S., and G. R. Knudsen.  2000. Cotransformation of Trichoderma harzianum with b‑Glucuronidase and green fluorescent protein genes provides a useful tool for monitoring fungal growth and activity in natural soils.  Appl. Environ. Microbiol. 66:810-815.

 

Dandurand, L. M., R. D. Mosher, and G. R. Knudsen.  2000.  Combined effects of Brassica napus seed meal and Trichoderma  harzianum on two soilborne plant pathogens.  Can. J. Microbiol. 46:1051-1057.

 

Knudsen, G. R., and D. J. Schotzko.  1999.  Spatial simulation of epizootics caused by Beauveria bassiana in Russian wheat aphid populations.   Biological Control 16:318-326.

 

Scott, J. S., and G. R. Knudsen.  1999.  Soil amendment effects of rape (Brassica napus) residues on pea rhizosphere bacteria.  Soil Biol. Biochem. 31:1435-1441.

 

Mousseaux, M. R., R. K. Dumroese, R. L. James, D. L. Wenny, and G. R. Knudsen.  1998.  Efficacy of Trichoderma harzianum as a biological control of Fusarium oxysporum in container-grown Douglas-fir seedlings.  New Forests 15:11-21.

 

Dandurand, L. M., D. J. Schotzko, and G. R. Knudsen.  1997.  Spatial patterns of rhizoplane populations of Pseudomonas fluorescens.  Appl. Environ. Microbiol. 63:3211-3217.

 

Knudsen, G. R., and Z. G. Wang.  1997.  Microbial control of the Russian wheat aphid with the entomopathogen Beauveria bassiana. Thomas Say Publ., Entomol. Soc. Am.

 

Schotzko, D. J., S. S. Quisenberry, & G. R. Knudsen.  1997.  Spatio-temporal dynamics of the Russian wheat aphid, within spatially varied hosts.  Thomas Say Publ., Entomol. Soc. Am.

 

Smolinska, U., G. R. Knudsen, M. J. Morra, and V. Borek.  1997.  Inhibition of Aphanomyces euteiches f. sp. pisi by volatiles produced by hydrolysis of Brassica napus seed meal.  Plant Disease 81:288-292.

 

Smolinska, U., M. J. Morra, G. R. Knudsen, and P. Brown.  1997. Toxicity of glucosinolate degradation products from Brassica napus seed meal toward Aphanomyces euteiches f. sp. pisi.  Phytopathology 87:77-82.

 

Dandurand, L. M., and G. R. Knudsen.  1996.  Isolation of microbes from the rhizosphere and phyllosphere.  Pages 391-399 in:  C. J. Hurst, G. R. Knudsen, M. J. McInerney, L. D. Stetzenbach, and M. V. Walter (eds).  Manual of Environmental Microbiology.  American Society for Microbiology, Washington, DC.

 

Hurst, C. J., G. R. Knudsen, M. J. McInerney, L. D. Stetzenbach, and M. V. Walter (eds).  1996.  Manual of Environmental Microbiology.  American Society for Microbiology, Washington, DC.

 

Knudsen, G. R.  1996.  Introduction: Soil, Rhizosphere;, and Phyllosphere.  Pages 381-382 in:  C. J. Hurst, G. R. Knudsen, M. J. McInerney, L. D. Stetzenbach, and M. V. Walter (eds).  Manual of Environmental Microbiology.  American Society for Microbiology, Washington, DC.

 

Sudarshana, P., and G. R. Knudsen.  1995.  Effect of parental growth on dynamics of conjugative plasmid transfer in the pea spermosphere.  Appl. Environ. Microbiol. 61:3136-3141.

 

Dandurand, L. M., G. R. Knudsen, and D. J. Schotzko.  1995. Quantification of Pythium ultimum var. sporangiiferum zoospore encystment patterns using geostatistics.  Phytopathology 85:186-190.

 

Knudsen, G. R., D. J. Schotzko, and C. R. Krag.  1994.  Fungal entomopathogen effect on numbers and spatial patterns of the Russian wheat aphid (Homoptera: Aphididae) on preferred and nonpreferred host plants.  Environ. Entomol. 23:1558-1567.

 

Dandurand, L. M., and Knudsen, G. R.  1993.  Influence of Pseudomonas fluorescens on hyphal growth and biocontrol efficacy of Trichoderma harzianum in the spermosphere and rhizosphere of pea.  Phytopathology 83:265-270.

 

Wang, Z. G., and Knudsen, G. R.  1993.  Effect of the entomopathogen Beauveria bassiana  (Fungi: Hyphomycetes) on fecundity of the Russian wheat aphid (Diuraphis noxia) (Homoptera: Aphididae).  Environ. Entomol. 22:874-878.

 

Schotzko, D. J.,  and Knudsen, G. R.  1992.  Use of geostatistics to evaluate a spatial simulation model of aphid population dynamics.  Environ. Entomol. 21:1271-1282.

 

D. K. Arora, K. G. Mukerji, B. Rai, and G. R. Knudsen (eds).  1991.  Handbook of Applied Mycology, Vol. I: Soil and Plants.  Marcel Dekker, New York.

 

Bin, L., Knudsen, G. R., and Eschen, D. J.  1991.  Influence of an antagonistic strain of Pseudomonas fluorescens on growth and ability of  Trichoderma harzianum to colonize sclerotia of Sclerotinia sclerotiorum in soil.  Phytopathology  81:994-1000.

 

Knudsen, G. R. 1991.  Models for the survival of bacteria applied to the foliage of crop plants.  Pages 191-216 in: C. J. Hurst, ed., Modeling the Environmental Fate of Microorganisms.  ASM Publications.

 

Knudsen, G. R., Eschen, D. J., Dandurand. L. M., and Wang, Z. G.   1991.  Method to enhance growth and sporulation of  pelletized biocontrol fungi.   Appl. Environ. Microbiol. 57:2864-2867.

 

Knudsen, G. R., and Schotzko, D. J.  1991.  Simulation of Russian wheat aphid movement and population dynamics on preferred and non-preferred host plants.  Ecol. Modell. 57:117-131.

 

Knudsen, G. R., and Stack, J. P. 1991.  Modeling growth and dispersal of fungi in natural environments.   Pages 625-645 in: D. K. Arora, K. G. Mukerji, B. Rai, and G. R. Knudsen, eds., Handbook of Applied Mycology, Vol. I: Soil and Plants.  Marcel Dekker, New York.

 

Knudsen, G. R., Eschen, D. J., Dandurand, L. M., and Bin, L. 1991.  Potential for control of Sclerotinia sclerotiorum through colonization of sclerotia by Trichoderma harzianum.  Plant Disease 75:466-470.

 

Knudsen, G. R., and Bin, L. 1990.  Effects of temperature, soil moisture and wheat bran on growth of Trichoderma harzianum from alginate pellets.  Phytopathology 80:724-727.

 

Knudsen, G. R., Johnson, J. B., and Eschen, D. J. 1990.  Alginate pellet formulation of a Beauveria bassiana (Fungi: Hyphomycetes) isolate pathogenic to cereal aphids.  J. Econ. Entomol. 83:2225-2228.

 

Knudsen, G. R.  1989.  Model to predict aerial dispersal of bacteria during environmental release.  Appl. and Environ. Microbiol. 55:2641-2647.

 

Lindow, S. E., Knudsen, G. R., Seidler, R. J., Walter, M. V., Lambou, V. W., Amy, P. S., Schmedding, D., Prince, V., and Hern, S.  1988.  Aerial dispersal and epiphytic survival of Pseudomonas syringae during a pretest for the release of genetically engineered strains into the environment.  Appl. and Environ. Microbiol. 54:1557-1563.

 

 Knudsen, G. R., Johnson, C. S., and Spurr, H. W., Jr.  1988.  A simulation model explores fungicide strategies to control peanut leafspot.  Peanut Science 15:39-43.

 

Knudsen, G. R., Walter, M. V., Porteous, L. A., Prince, V. J., Armstrong, J. L., and Seidler, R. J.  1988.  Predictive model of conjugative plasmid transfer in the rhizosphere and phyllosphere.  Appl. and Environ. Microbiol. 54:343-347.

 

Knudsen, G. R., and Spurr, H. W., Jr.  1988.  Management of bacterial populations for foliar disease biocontrol.  In: K. G. Mukerji, ed., Biocontrol of Plant Diseases.  CRC Press.

 

Spurr, H. W., Jr., and Knudsen, G. R.  1985.  Biological control of leaf diseases with bacteria.  Pages 45-62 in: C. E. Windels and S. E. Lindow (eds.), Biological Control on the Phylloplane.  American Phytopathological Society, St. Paul, Minn.

 

Knudsen, G. R., and Hudler, G. W.  1984.  Interactions between epiphytic bacteria and conidia of Gremmeniella abietina.  Pages 217-225 in: P. D. Manion, ed.  Scleroderris Canker of Conifers.  Nijhoff/Junk, The Hague, The Netherlands.