Innovative Applications of Microbial Agents for Biological Weed Control

  • Susan M. Boyetchko


The world chemical pesticide market was valued at $26.8 billion in 1991, with herbicides accounting for 44% of the market (Powell and Jutsum, 1993). Annual yield losses due to weeds were $984 million in 58 commodities grown in Canada and $1,060 million in vegetable, fruit and nut crops grown in the United States (Chandler et al., 1984; Charudattan and DeLoach, 1988; Swanton et al., 1993). Rising economic, environmental, and social costs associated with agricultural inputs, spray drift, pesticide residues, government legislation for reduced pesticide use, and development of herbicide-resistance in weeds make biopesticide products attractive alternatives to chemicals (Jacobsen and Backman, 1993; Pimental et al., 1991; Swanton et al., 1993). Countries such as Denmark, Sweden, and the Netherlands have implemented programs to reduce pesticide use by 50% (Pimentai et al., 1991). In Ontario, Canada, a government initiative was proposed to reduce pesticide applications by 50% by the year 2002 (Swanton et al., 1993).


Colletotrichum Gloeosporioides Canada Thistle Biological Weed Control Abutilon Theophrasti Chemical Herbicide 
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  1. Aldrich, R.J. 1987, Predicting crop yield reductions from weeds, Weed Technol. 1:199–206.Google Scholar
  2. Amrhein, N. 1986, Specific inhibitors as probes into the biosynthesis and metabolism of aromatic amino acids, Recent Adv. Phytochem. 20:83–117.Google Scholar
  3. Amsellem, Z., Sharon, A., Fressel, J. and Quimby, P.C., Jr. 1990, Complete abolition of high inoculum threshold of two mycoherbicides (Alternaria casside and A. crassa) when applied in invert emulsion, Phytopathology 80:925–929.Google Scholar
  4. Auld, B.A. 1993, Vegetable oil suspension emulsions reduce dew dependence of a mycoherbicide, Crop Prot. 12:477–479.Google Scholar
  5. Auld, B.A., and Morin, L. 1995, Constraints in the development of bioherbicides, Weed Technol. 9:638–652.Google Scholar
  6. Auld, B.A., Say, M.M., Ridings, H.I. and Andrews, J. 1990, Field applications of Colletotrichum orbiculare to control Xanthium spinosum, Agric. Ecosystems Environ. 23:315–323.Google Scholar
  7. Beste, C.E., Frank, J.R., Bruckart, W.L., Johnson, D.R. and Potts, W.E. 1992, Yellow nutsedge (Cyperus esculentus) control in tomato with Puccinia canaliculata and pebulate, Weed Technol. 6:980–984.Google Scholar
  8. Boyetchko, S.M. 1996a, Formulating bacteria foruse as biological control agents, in: Proc. National Meeting of Expert Committee on Weeds, Victoria, B.C., December 9–12, 1996, pp. 85–88.Google Scholar
  9. Boyetchko, S.M. 1996b, Impact of soil microorganisms on weed biology and ecology, Phytoprotection 77:41–56.Google Scholar
  10. Boyetchko, S.M. 1997, Efficacy of rhizobacteria as biological control agents of grassy weeds, in: Proc. Soils and Crops Workshop’ 97, Saskatoon, Saskatchewan, February 20–21, 1997, pp. 460–465.Google Scholar
  11. Boyetchko, S.M., and Holmström-Ruddick, B. 1995, Host-range of rhizobacteria effective as biocontrol agents of downy brome, Can. J. Plant Pathol. 17, (Abstr).Google Scholar
  12. Boyetchko, S.M., Bailey, K.L., Mortensen, K., Wolf, T.M. and Zhang, W.M. 1997, Survey and evaluation of fungal pathogens for biological control of grass weeds (Abstr), Phytopathology 87 (Suppl):S11.Google Scholar
  13. Boyetchko, S.M., and Mortensen, K. 1993, Use of rhizobacteria as biological control agents of downy brome, in: Proc. Soils and Crops Workshop’ 93, Saskatoon, Saskatchewan, February 25–26, 1993, pp.443–448.Google Scholar
  14. Boyetchko, S.M., Wolf, T.M., Bailey, K.L., Mortensen, K. and Zhang, W.M. 1998, Survey and evaluation of fungal pathogens forbiological control of grass weeds, in: Proc. Soils and Crops Workshop, Saskatoon, Saskatchewan, February 19–20, 1998 (in press).Google Scholar
  15. Boyette, C.D. 1986, Evaluation of Alternaria crossa for biological control of Jimsonweed: host range and virulence, Plant Sci. 45:223–228.Google Scholar
  16. Boyette, C.D. 1991a, Host range and virulence of Colletotrichum truncatum, a potential mycoherbicide for hemp sesbania (Sesbania exaltata), Plant Dis. 75:62–64.Google Scholar
  17. Boyette, C.D. 1991b, Control of hemp sesbania with a fungal pathogen, Colletotrichum truncatum, U.S. Patent No. 5, 034, 328.Google Scholar
  18. Boyette, C.D. 1994, Unrefined corn oil improves the mycoherbicidal activity of Colletotrichum truncatum for hemp sesbania (Sesbania exaltata) control, Weed Technol. 8:526–529.Google Scholar
  19. Boyette, C.D., Templeton, G.E. and Oliver, L.R. 1984, Texas gourd (Cucurbita texana) control with Fusarium solani f.sp. cucurbitae, Weed Sci. 32:649–655.Google Scholar
  20. Boyette, C.D., Quimby, P.C. Jr., Caesar, A.J., Birdsall, J.L., Connick, W.J., Jr., Daigle, D.J., Jackson, M.A., Egley, G.H. and Abbas, H.K. 1996, Adjuvants, formulations, and spraying systems for improvement of mycoherbicides, Weed Technol. 10:637–644.Google Scholar
  21. Boyette, C.D., and Walker, H.L. 1986, Evaluation of Fusarium lateritium as a biological herbicide for controlling velvetleaf (Abutilon theophrasti), and prickly sida (Sida spinosa), Weed Sci. 34:106–109.Google Scholar
  22. Boyette, C.D., Quimby, P.C., Jr., Bryson, C.T., Egley, G.H. and Fulgham, F.E. 1993, Biological control of hemp sesbania (Sesbania exaltata) under field conditions with Colletotrichum truncatum formulated in an invert emulsion, Weed Sci. 41:497–500.Google Scholar
  23. Brosten, B.S. and Sands, D.C. 1986, Field trials of Sclerotinia sclerotiorum to control Canada thistle (Cirscium arvense), Weed Sci. 34:377–380.Google Scholar
  24. Burnett, H.C., Tucker, D.P.H. and Ridings, W.H. 1974, Phytophthora root and stem rot of milkweed vine, Plant Dis. Rep. 58:355–357.Google Scholar
  25. Chandler, J.M., Hamill, A.S. and Thomas, A.G. 1984, Crop losses due to weeds in Canada and the United States, Spec. Rep. Weed Sci Soc. Am., Champaign, 111.Google Scholar
  26. Chandramohan, S. and Charudattan, R. 1997, Bioherbicidal control of grassy weeds with a pathogen mixture, WSSA Abstracts 37:56.Google Scholar
  27. Chandramohan, S., Charudattan, R. and Singh, M. 1997, Field testing of a-multiple-pathogen strategy’ for bioherbicidal control of grassy weeds (Abstr), Phytopathology 87(Suppl.):S17.Google Scholar
  28. Charudattan, R. 1991, The mycoherbicide approach with plant pathogens, in: Microbial Control of Weeds, D.O. TeBeest, ed., Chapman and Hall, Inc., New York, p. 24–57.Google Scholar
  29. Charudattan, R., and DeLoach, C.J. Jr. 1988, Management of pathogens and insects for weed control in agroecosystem, in: Weed Management in Agroecosystems: Ecological Approaches, M.A. Altieri and M. Liebman, eds., CRC Press, Boca Raton, Florida, p.245–264Google Scholar
  30. Charudattan, R., Walker, H.L., Boyette, C.D., Ridings, W.H., TeBeest, D.O., Van Dyke, C.G. and Worsham, A.D. 1986, Evaluation of Alternaria cassiae as a mycoherbicide for sicklepod (Cassia obtusifolia) in regional field tests, Southern Coop. Ser. Bull. 317. Alabama Agric. Exp. Sta., Auburn University, Auburn, AL.Google Scholar
  31. Cherrington, C.A. and Elliott, L.F. 1987, Incidence of inhibitory pseudomonads in the Pacific Northwest, Plant Soil. 101:159–165.Google Scholar
  32. Connick, Jr. W.J., Boyette, C.D. and McAlpine, J.R. 1991a, Formulation of mycoherbicides using a pasta-like process, Biol. Control 1:281–287.Google Scholar
  33. Connick, Jr. W.J., Daigle, D.J. and Quimby, P.C., Jr. 1991b, An improved invert emulsion with high water retention for mycoherbicide delivery, Weed Technol. 5:442–444.Google Scholar
  34. Connick, Jr. W.J., Daigle, D.J., Boyette, C.D., Williams, K.S. and Vinyard, B. 1996, Water activity and other factors that affect the viability of Colletotrichum truncatum conidia in wheat flour-kaolin granules (‘pesta’), Biocontrol Sci. Technol. 6:277–284.Google Scholar
  35. Connick, Jr. W.J., Lewis, J.A. and Quimby, P.C., Jr. 1990, Formulation of biocontrol agents for use in plant pathology, UCLA Symp. Mol. Cell Biol. pp. 345–372.Google Scholar
  36. Daigle, D.J. and Cotty, P.J. 1991, Factors that influence germination and mycoherbicidal activity of Alternaria cassiae, Weed Technol. 5:82–86.Google Scholar
  37. Daigle, D.J. and Cotty, P.J. 1992, Production of conidia of Alternaria cassiae with alginate pellets, Biol. Control 2:278–281.Google Scholar
  38. De Jong, M.D., Scheepens, P.C. and Zadoks, J.C. 1990, Risk analysis for biological control: a Dutch case study in biocontrol of Prunus serotina by the fungus Chondrostereum purpureum, Plant Dis. 74:189–194.Google Scholar
  39. Derksen, D.A., Blackshaw, R.E. and Boyetchko, S.M. 1996, Sustainability, conservation tillage and weeds in Canada, Can. J. Plant Sci. 76:651–659.Google Scholar
  40. Dickman, M.B. 1993, Molecular biology of plant-parasite relations, in: Soil Microbial Ecology: Applications in Agricultural and Environmental Management, F. Blaine Metting, Jr., ed., Marcel Dekker, New York, pp. 177–202.Google Scholar
  41. Dickman, M.B., Podila, G.K. and Kolattukudy, P.E. 1989, Insertion of cutinase gene into a wound pathogen enables it to infect intact host, Nature 342:446–448.Google Scholar
  42. Digat, B. 1989, Strategies for seed bacterization, Acta Hortic. 253:121–130.Google Scholar
  43. Digat, B. 1991, A new encapsulation technology for bacterial inoculants and seed bacterization, in: Plant Growth-Promoting Rhizobacteria Progress and Prospects, Int’l Workshop on Plant Growth-Promoting Rhizobacteria, (2nd: 1990: Interlaken, Switzerland), Bulletin SROP, No. 14, pp. 383–391.Google Scholar
  44. DiTommaso, A., and Watson, A.K. 1995, Impact of a fungal pathogen, Colletotrichum coccodes on growth and competitive ability of Abutilon theophrasti, New Phytol. 131:51–60.Google Scholar
  45. DiTommaso, A., Watson, A.K. and Hallett, S.G. 1996, Infection by the fungal pathogen Colletotrichum coccodes affects velvetleaf (Abutilon theophrasti)- soybean competition in the field, Weed Sci. 44:924–933.Google Scholar
  46. Dorworth, C. 1992, The case for biological control — Deleterious rhizobacteria as biocontrol agents for Calamagrostis canadensis, Northern Forest Vegetation Manager, pp. 9–11.Google Scholar
  47. Duke, S.O. 1986, Naturally occurring chemical compounds as herbicides, Rev. Weed Sci. 2:15–44.Google Scholar
  48. Dumas, M.T., Wood, J.E., Mitchell, E.G. and Boyonoski, N.W. 1997, Control of stump sprouting of Populus tremuloides and P. grandidentata by inoculation with Chondrostereum purpureum, Biol. Control 10:37–41.Google Scholar
  49. Egley, G.H. and Boyette, C.D. 1994, Water-corn oil emulsion enhances conidia germination and mycoherbicidal activity of Colletotrichum truncatum, Weed Sci. 43:312–317.Google Scholar
  50. Elliott, L.F., and Lynch, J.M. 1985, Plant growth-inhibiting pseudomonads colonizing winter wheat (Triticum aestivum L.) roots, Plant and Soil 84:57–65.Google Scholar
  51. Gotlieb, A.R., Watson, A.K. and Poirier, C. 1987, First report of Colletotrichum coccodes on velvetleaf, Plant Dis. 71:281.Google Scholar
  52. Grant, N.T., Prusinkiewicz, E., Makowski, R.M.D., Holmström-Ruddick, B. and Mortensen, K. 1990a, Effect of selected pesticides on survival of Colletotrichum gloeosporioides f.sp. malvae, a bioherbicide for round-leaved mallow (Malva pusilla), Weed Technol. 4:701–715.Google Scholar
  53. Grant, N.T., Prusinkiewicz, E., Mortensen, K. and Makowski, R.M.D. 1990b, Herbicide interactions with Colletotrichum gloeosporioides f.sp. malvae a bioherbicide for round-leaved mallow (Malva pusilla) control, Weed Technol. 4:716–723.Google Scholar
  54. Greaves, M.P., and MacQueen, M.D. 1992, Bioherbicides: their role in tomorrow’s agriculture. in: Resistance: Achievements and Developments in Combating Pesticide Resistance, Sci. Symposium, Harpenden, England, UK, pp. 295–306.Google Scholar
  55. Green, S., Stewart-Wade, S.M., Boland, G.J., Teshler, M.P. and Liu, S.H. 1998, Formulating microorganisms for biological control of weeds, in: Plant-Microbe Interations and Biological Control, G.J. Boland and L.D. Kuykendall, eds., Marcel Dekker Inc., New York, pp. 249–281Google Scholar
  56. Gronwald, J.W., Johnson, D.R., Plaisance, K.L. and Wyse, D.L. 1998, Factors influencing the efficacy of Pseudomonas syringae pv. tagetis on host and nonhost species (Abstr), WSSA Abstracts, 38:46.Google Scholar
  57. Gurusiddaiah, S., Gealy, D.R., Kennedy, A.C. and Ogg, A.G. Jr. 1992, Production, isolation, and characterization of phytotoxic and fungistatic compounds for biocontrol of downy brome (Bromus tectorum L.) and plant pathogenic fungi (Abstr), Weed Sci. Soc. Am. 32:84.Google Scholar
  58. Harris, P.A. and Stahlman, P.W. 1992, Biological weed control using deleterious rhizobacteria, Abstr. Weed Sci. Soc. Am. 32:50.Google Scholar
  59. Harris, P.A. and Stahlman, P.W. 1993, Soil bacteria selectively inhibit winter wheat annual grass weeds in winter wheat, in: Agronomy Abstracts (Soil Science Soc. Amer.), Cincinnati, Ohio, November 7–12, 1993, p. 250.Google Scholar
  60. Hasan, S. and Ayres, P.G. 1990, The control of weeds through fungi:Principles and prospects, New Phytol. 115:201–222.Google Scholar
  61. Hoagland, R.E. 1990. Microbes and microbial products as herbicides: An overview, in: Microbes and Microbial Products as Herbicides, R.E. Hoagland, ed., ACS Symposium Series 439, American Chemical Society, Washington, pp.2–52.Google Scholar
  62. Hoagland, R.E. 1996, Chemical interactions with bioherbicides to improve efficacy, Weed Technol. 10:651–674.Google Scholar
  63. Hoagland, R.E. and Boyette, C.D. 1994, Pathogenic interaction of Alternaria crossa and phenolic metabolism in jimsonweed (Datura stramonium L.) varieties, Weed Sci. 42:44–49.Google Scholar
  64. Howell, C.R. 1982, Effect of Gliocladium virens on Pythium ultimum, Rhizoctonia solani, and damping-off of cotton seedlings, Phytopathology 72:496–498.Google Scholar
  65. Howell, C.R. and Stipanovic, R.D. 1984, Phytotoxicity to crop plants and herbicidal effects on weeds of viridiol produced by Gliocladium virens, Phytopathology 74:1346–1349.Google Scholar
  66. Imaizumi, S., Nishino, T., Miyabe, K., Fujimori, T. and Yamada, M. 1997, Biological control of annual bluegrass (Poa annua L.) with a Japanese isolate of Xanthomonas campestris pv. poae (JT-P482), Biol. Control 8:7–14.Google Scholar
  67. Jackson, M.A. and Schisler, D.A. 1995, Liquid culture production of microsclerotia of Colletotrichum truncatum for use as bioherbicidal propagules, Mycol. Res. 99:879–884.Google Scholar
  68. Jackson, M.A., Schisler, D.A., Slininger, P.J., Boyette, C.D., Silman, R.W. and Bothast, R.J. 1996, Fermentation strategies for improving the fitness of a bioherbicide, Weed Technol. 10:645–650.Google Scholar
  69. Jacobsen, B.J. and Backman, P.A. 1993, Biological and cultural plant disease controls: Alternatives and supplements to chemicals in IPM systems, Plant Dis. 77:311–315.Google Scholar
  70. Jha, P.K., Nair, S. and Babu, S. 1993, Encapsulation of seeds of Sesbania sesban with polyacrylamide and alginate gel entrappted rhizobia leads to effective symbiotic nitrogen fixation, Ind. J. Expt. Biol. 31:161–167.Google Scholar
  71. Johnson, B.J. 1994, Biological control of annual bluegrass with Xanthomonas campestris pv. poannua in bermudagrass, Hort Science, 29:659–662.Google Scholar
  72. Johnson, B.N., Kennedy, A.C. and Ogg, A.G. 1993, Suppression of downy brome growth by a rhizobacterium, in controlled environments, Soil Sci. Soc. Am. J. 57:73–77.Google Scholar
  73. Johnson, D.R. and Wyse, D.L. 1991, Use of Pseudomonas syringae pv. tagetis for control of Canada thistle, Proc. North Cent. Weed Sci. Soc. 46:14–15.Google Scholar
  74. Johnson, D.R., Wyse, D.L. and Jones, K.J. 1995, Efficacy of spring and fall applications of Pseudomonas syringae pv. tagetis for Canada thistle (Cirsium arvense L.) control in soybean, WSSA Abstracts, 35:61.Google Scholar
  75. Johnson, D.R., Wyse, D.L. and Jones, K.J. 1996, Controlling weeds with phytopathogenic bacteria, Weed Technol. 10:621–624.Google Scholar
  76. Jones, R.W., and Hancock, J.G. 1990, Soilborne fungi for biological control of weeds, in: Microbes and Microbial Products as Herbicides, R.E. Hoagland, ed., American Chemical Society Symposium Series, Washington, D.C.Google Scholar
  77. Kadir, J., Charudattan, R., Berger, R.D., Stall, W.M. and Brecke, B.J. 1997a, Field efficacy of Dactylaria higginsii for control of purple nutsedge (Abstr), Phytopathology 87(Suppl):S49, pp.277–286.Google Scholar
  78. Kadir, J., Charudattan, R., Stall, W.M. and Bewick, T.A. 1997b, Effect of Dactylaria higginsii on the interference of purple nutsedge with tomato and pepper (Abstr), Phytopathology 87(Suppl):S50.Google Scholar
  79. Kennedy, A.C. 1996, Molecular biology of bacteria and fungi for biological control of weeds, in: Molecular Biology of the Biological Control of Pests and Diseases of Plants, M. Gunasekaran and D.J. Weber, eds., CRC Press Inc., Boca Raton, Florida, pp. 155–172.Google Scholar
  80. Kennedy, A.C., Elliott, L.F., Young, F.L. and Douglas, C.L. 1991, Rhizobacteria suppressive to the weed downy brome, Soil Sci. Soc. Am. J. 55:722–727.Google Scholar
  81. Kennedy, A.C., Stubbs, T.L. and Fuerst, E.P. 1995, Biological control of jointed goatgrass (Aegilops cylindrica), WSSA Abstracts. 35:61.Google Scholar
  82. Kenfield, D., Bunkers, G., Strobel, G.A. and Sugawara, F. 1988, Potential new herbicides — phytotoxins from plant pathogens, Weed Technol. 2:519–524.Google Scholar
  83. Kremer, R.J. 1987, Identity and properties of bacteria inhabiting seeds of selected broadleaf weed species, Microb. Ecol. 14:29–37.Google Scholar
  84. Kremer, R.J. 1993, Management of weed seed banks with microorganisms, Ecol. Appl. 3:42–52.Google Scholar
  85. Kremer, R.J. and Kennedy, A.C. 1996, Rhizobacteria as biocontrol agents of weeds, Weed Technol. 10:601–609.Google Scholar
  86. Kremer, R.J., Begonia, M.F.T., Stanley, L. and Lanham, E.T. 1990, Characterization of rhizobacteria associated with weed seedlings, Appl. Environ. Microbiol. 56:1649–1655.PubMedGoogle Scholar
  87. Kremer, R.J., and Sarwar, M. 1995a, Microbial metabolites with potential applications in weed management, Proc. Plant Growth Reg. Soc. Am. 21:48–51.Google Scholar
  88. Lawrie, J., Greaves, M.P., Down, V.M. and Chassot, A. 1997, Some effects of spray droplet size on distribution, germination of and infection by mycoherbicide spores, Aspects Appl. Biol. 48:175–182.Google Scholar
  89. Makowski, R.M.D. 1987, The evaluation of Malva pusilla Sm. as a weed and its pathogen Colletotrichum gloeosporioides (Penz.) Sacc. f.sp. malvae as a bioherbicide, Ph.D. Dissertation, University of Saskatchewan, Saskatoon, 225 pp.Google Scholar
  90. Makowski, R.M.D. 1993, Effect of inoculum concentration, temperature, dew period, and plant growth stage on disease of round-leaved mallow and velvetleaf by Colletotrichum gloeosporioides f.sp. malvae, Phytopathology 83:1229–1234.Google Scholar
  91. Makowski, R.M.D. 1997, Foliar pathogens in weed biocontrol: ecological and regulatory constraints, in: Ecological Interactions and Biological Control, D.A. Andow, D.W. Ragsdale, and R.F. Nyvall, eds., Westview Press, Colorado, pp.87–103.Google Scholar
  92. Makowski, R.M.D., and Mortensen, K. 1992, The first mycoherbicide in Canada: Colletotrichum gloeosporioides f.sp. malvae for round-leaved mallow control, in: Proceedings of the First International Weed Control Congress, Monash University, Melbourne, Australia, February 17–21, 1992, pp. 298–300Google Scholar
  93. Mooney, H.D., Boyetchko, S.M. and Punja, Z.K. 1996, Development of application techniques for biological weed control using rhizobacteria, in: Proc. IX International Symposium on Biological Control of Weeds, V.C. Moran and J.H. Joffmann eds., 19–26 January, 1996, Stellenbosch, South Africa, University of Cape Town, South Africa, pp.297–299.Google Scholar
  94. Morin, L., Derby, J.L. and Kokko, E.G. 1996, Infection process of Colletotrichum gloeosporioides f.sp. malvae on Malvaceae weeds, Mycol. Res. 100:165–172.Google Scholar
  95. Morin, L., Watson, A.K. and Reeleder, R.D. 1989. Efficacy of Phomopsis convolvulus for control of field bindweed (Convolvulus arvensis), Weed Sci. 37:830–835.Google Scholar
  96. Morin, L., Watson, A.K. and Reeleder, R.D. 1990, Effect of dew, inoculum density, and spray additives on infection of field bindweed by Phomopsis convolvulus, Can. J. Plant Pathol. 12:48–56.Google Scholar
  97. Mortensen, K. 1988, The potential of an endemic fungus Colletotrichum gloeosporioides, for biological control of round-leaved mallow (Malva pusilla) and velvetleaf (Abutilon theophrasti), Weed Sci. 36:473–478.Google Scholar
  98. Mortensen, K. 1998, Biological control of weeds using microorganisms, in: Plant-Microbe Interactions and Biological Control, G.J. Boland and L.D. Kuykendall, eds., Marcel Dekker Inc., New York, pp. 223–248.Google Scholar
  99. Mortensen, K. and Hogue, E.J. 1995, Sclerotinia sclerotiorum as a potential biological control agent for diffuse knapweed on dry rangeland in interior British Columbia, in: Proceedings of VIII Int. Symp. Biol. Contr. Weeds, E.S. Delfosse and R.R. Scott, eds., 1992, Lincoln University, Cantebury, New Zealand, DSIR/CSIRO, Melbourne, Australia, pp. 397–406.Google Scholar
  100. Mortensen, K. and Makowski, R.M.D. 1990, Field efficacy at different rates of Colletotrichum gloeosporioides f.sp. malvae as a bioherbicide for round-leaved mallow (Malva pusilla Sm.) in: Proceedings of the VIIth International Symposium on the Biological Control of Weeds, E.S. Delfosse, ed., Rome, 1988, pp. 523–530Google Scholar
  101. Mortensen, K., and Makowski, R.M.D. 1997, Effects of Colletotrichum gloeosporioides f.sp. malvae on plant development and biomass of non-target field crops under controlled and field conditions, Weed Res. 37:351–360.Google Scholar
  102. Nishino, T., Imaizumi, S., Yamada, M. and Goto, M. 1995, Xanthomonas campestris pv. poae as the causal agent of wilt symptoms on annual bluegrass in Japan, Ann. Phytopathol. Soc. Jpn. 61:555–561.Google Scholar
  103. O’Donovan, J.T., de St. Remy, E.A., O’Sullivan, P.A., Dew, D.A. and Sharma, A.K. 1985, Influence of the relative time of emergence of wild oat (Avena fatua) on yield loss of barley (Hordeum vulgare) and wheat (Triticum aestivum), Weed Sci. 33:498–503.Google Scholar
  104. Ohra, J., Morita, K., Tsujino, Y., Fujimori, T., Goering, M., Evans, S. and Zorner, P. 1995, Production of two phytotoxic metabolites by the fungus Alternaria cassiae, Biosci. Biotech. Biochem. 59:1782–1783.Google Scholar
  105. Phatak, S.C. 1984, Knock out nutsedge, Amer. Veg. Grower 32:44–46.Google Scholar
  106. Phatak, S.C., Sumner, D.R., Wells, H.D., Bell, D.K. and Glaze, N.C. 1983, Biological control of yellow nutsedge with the indigenous rust fungus Puccinia canaliculata, Science 219:1446–1447.PubMedGoogle Scholar
  107. Pimental, D., McLaughlin, L., Zepp, A., Lakitan, B., Kraus, T., Kleinman, P., Vancini, F., Roach, W.J., Graap, E., Keeton, W.S. and Selig, G. 1986, Environmental and economic effects of reducing pesticide use, BioScience 41:402–409.Google Scholar
  108. Poppenborg, L., Friehs, K. and Flaschel, E. 1997, The green fluorescent protein is a versatile reporter for bioprocess monitoring, J. Biotechnol. 58:79–88.PubMedGoogle Scholar
  109. Porteous, L.A., Armstrong, J.L., Seidler, R.J. and Watrud, L.S. 1994, An effective method to extract DNA from environmental samples for polymerase chain reaction amplication and DNA fingerprint analysis, Curr. Microbiol. 29:301–307.PubMedGoogle Scholar
  110. Powell, K.A. and Jutsum, A.R. 1993, Technical and commercial aspects of biocontrol products, Pesticide Sci. 37:315–321.Google Scholar
  111. Prasad, R. 1994, Influence of several pesticides and adjuvants on Chondrostereum purpureum — a bioherbicide agent for control of forest weeds, Weed Technol. 8:445–449.Google Scholar
  112. Ramsfield, T.D., Becker, E.M., Rathief, S.M., Tang, Y., Vrain, T.C., Shamoun, S.F. and Hintz, W.E. 1996, Georgraphic variation of Chondrostereum purpureum detected by polymorphisms in the ribosomal DNA, Can. J. Bot. 74:1919–1929.Google Scholar
  113. Riddle, G.E., Burpee, L.L. and Boland, G.J. 1991, Virulence of Sclerotinia sclerotiorum and S. minor on dandelion, Weed Sci. 39:109–118.Google Scholar
  114. Rosskopf, E.N. 1997, Evaluation of Phomopsis amaranthicola sp. nov. as a biological control agent for Amaranthus spp., Ph.D. Thesis, University of Florida, Gainesville, Florida.Google Scholar
  115. Sands, D.C., Ford, E.J. and Miller, R.V. 1990a, Genetic manipulation of broad host-range fungi for biological control of weeds, Weed Technol. 4:471–474.Google Scholar
  116. Sands, D.C., Miller, R.V. and Ford, E.J. 1990b, Biotechnological approaches to control of weeds with pathogens, in: Microbes and Microbial Products as Herbicides, ACS Symposium Series, R.E. Hoagland, ed., American Chemical Society, Washington, pp. 184–190.Google Scholar
  117. Sarwar, M. and Kremer, R.J. 1995a, Enhanced suppression of plant growth through production of L-tryptophan-derived compounds by deleterious rhizobacteria, Plant and Soil 172:261–269.Google Scholar
  118. Sarwar, M. and Kremer, R.J. 1995b, Determination of bacterially derived auxins using a microplate method, Letters Appl. Microbiol. 20:282–285.Google Scholar
  119. Schippers, B., Bakker, A.W. and Bakker, P.A.H.M. 1987, Interactions of deleterious and beneficial rhizosphere microorganisms and the effect of cropping practices, Annu. Rev. Phytopathol. 25:339–358.Google Scholar
  120. Schippers, B., Bakker, A.W., Bakker, P.A.H.M. and Van Peer, R. 1990, Beneficial and deleterious effects of HCN-producing pseudomonads on rhizosphere interactions, Plant and Soil 129:75–83.Google Scholar
  121. Shabana, Y.M., Charudattan, R., Devalerio, J.T. and Elwakil, M.A. 1997, An evaluation of hydrophilic polymers for formulating the bioherbicide agents Alternaria cassiae and A. eichhomiae, Weed Technol. 11:212–220.Google Scholar
  122. Shamoun, S.F., Ramsfield, T.D., Shrimpton, G. and Hintz, W.E. 1996, Development of Chondrostereum purpureum as a mycoherbicide for red alder (Alnus rubra) in utility rights-of-way (Abstr), in: Proc. National Meeting of the Expert Committee on Weeds, P. Comeau and G. Harper, eds., December 9–12, 1996, p. 199.Google Scholar
  123. Sharon, A., Amsellem, Z. and Gressel, J. 1992, Glyphosate suppression of an elicited defence response, Plant Physiol. 98:654–659.PubMedGoogle Scholar
  124. Smith, R.J. 1986, Biological control of northern jointvetch (Aeschynomene virginica) in rice (Oryza sativa) and soybeans (Glycine max) — A researchers view, Weed Sci. 34(Suppl. l):17–23.Google Scholar
  125. Souissi, T. and Kremer, R.J. 1994, Leafy spurge (Euphorbia esula) cell cultures for screening deleterious rhizobacteria, Weed Sci. 42:310–315.Google Scholar
  126. Strobel, G., Kenfield, D., Bunkers, G., Sugawara, F. and Clardy, J. 1991, Phytotoxins as potential herbicides, Experientia 47:819–826.Google Scholar
  127. Stroo, H.F., Elliott, L.F. and Papendick, R.I. 1988, Growth, survival and toxin production of root-inhibitory pseudomonads on crop residues, Soil Biol. Biochem. 20:201–207.Google Scholar
  128. Swanton, C.J., Harker, K.N. and Anderson, R.L. 1993, Crop losses due to weeds in Canada, Weed Technol. 7:537–542.Google Scholar
  129. Swanton, C.J. and Weise, S.F. 1991, Integrated weed management: the rationale and approach, Weed Technol. 5:657–663.Google Scholar
  130. TeBeest, D.O. 1982, Survival of Colletotrichum gloeosporioides f.sp. aeschynomene in rice irrigation water and soil, Plant Dis. 66:469–472.Google Scholar
  131. TeBeest, D.O. 1996, Biological control of weeds with plant pathogens and microbial pesticides, in: Advances in Agronomy, D.L. Sparks ed., Volulme 56, Academic Press, Toronto, pp.115–137.Google Scholar
  132. TeBeest, D.O. and Templeton, G.E. 1985, Mycoherbicide: progress in the biological control of weeds, Plant Dis. 69:6–10.Google Scholar
  133. TeBeest, D.O., Yang, X.B. and Cisar, C.R. 1992, The status of biological control of weeds with fungal pathogens, Annu. Rev. Phytopathol. 30:637–657.Google Scholar
  134. Tranel, P.J., Gealy, D.R. and Irzyk, G.P. 1993a, Physiological responses of downy brome (Bromus tectorum) roots to Pseudomonas fluorescens strain D7 phytotoxin, Weed Sci. 41:483–489.Google Scholar
  135. Tranel, P.J., Gealy, D.R. and Kennedy, A.C. 1993b, Inhibition of downy brome (Bromus tectorum L.) root growth by a phytotoxin from Pseudomonas fluorescens strain D7 phytotoxin, Weed Technol. 7:134–139.Google Scholar
  136. Tu, J.C. 1980, Gliocladium virens, a destructive mycoparasite of Sclerotinia sclerotiorum, Phytopathology 70:670–674.Google Scholar
  137. Turgeon, G. and Yoder, O.C. 1985, Genetically engineered fungi for weed control, in: Biotechnology Applications and Research, P.N. Cheremisinoff and R.P. Ouellette, eds., Technomic Publishing Co. Inc., Lancaster pp. 221–230Google Scholar
  138. Walker, H.L. 1982, A seedling blight of sicklepod caused by Alternaria cassiae, Plant Dis. 66:426–428.Google Scholar
  139. Walker, H.L. and Boyette, C.D. 1985, Biocontrol of sicklepod (Cassia obtusifolia) in soybeans (Glycine max) with Alternaria cassiae, Weed Sci. 33:212–215.Google Scholar
  140. Walker, H.L. and Riley, J.A. 1982, Evaluation of Alternaria cassiae for the biocontrol of sicklepod (Cassia obtusifolia), Weed Sci. 30:651–654.Google Scholar
  141. Wall, R.E. 1990, The fungus Chondrostereum purpureum as a silvicide to control stump sprouting in hardwoods, North J. Appl. For. 7:17–19.Google Scholar
  142. Wall, R.E. 1994, Biological control of red alder using stem treatments with the fungus Chondrostereum purpureum, Can. J. For. Res. 24:1527–1530.Google Scholar
  143. Wang, R. 1990, Biological control of weeds in China: a status report, in: Proc. VII Int. Symp. Biol. Contr. Weeds, E.S. Delfosse, ed., Rome, Italy, 1988, 1st Sper, Patol. Veg. (MAF), Rome, Italy, pp.689–693.Google Scholar
  144. Weete, J.D. 1992, Induced systemic resistance to Alternaria cassiae in sicklepod, Physiol. Molec. Plant Pathol. 40:437–445.Google Scholar
  145. Weaver, S.E. 1984, Critical period of weed competition in three vegetable crops in relation to management practices, Weed Res. 24:317–325.Google Scholar
  146. Wei, Y.D., Byer, K.N. and Goodwin, P.H. 1997, Hemibiotrophic infection of round-leaved mallow by Colletotrichum gloeosporioides f.sp. malvae in relation to leaf senescence and reducing reagents, Mycol. Res. 101:357–364.Google Scholar
  147. Weidemann, G.J. and Templeton, G.E. 1988, Control of Texas gourd, (Cucurbita texana) with Fusarium solani f.sp. cucurbitae, Weed Technol. 2:271–274.Google Scholar
  148. Womack, J.G., Eccleston, G.M. and Burge, M.N. 1996, A vegetble oil-based invert emulsion for mycoherbicide delivery, Biol. Cont. 6:23–28.Google Scholar
  149. Wymore, L.A. and Watson, A.K. 1989, Interaction between the velvetleaf isolate of Colletotrichulm coccodes and thidiazuron for velvetleaf (Abutilon theophrasti) control in the field, Weed Sci. 37:478–483.Google Scholar
  150. Wymore, L.A., Watson, A.K. and Gotlieb, A.R. 1987, Interaction between Colletotrichum coccodes and thidiazuron for control of velvetleaf (Abutilon theophrasti), Weed Sci. 35:377–383.Google Scholar
  151. Wymore, L.A., Poirier, C., Watson, A.K. and Gotlieb, A.R. 1988, Colletotrichum coccodes, a potential bioherbicide for control of velvetleaf (Abutilon theophrasti), Plant Dis. 72:534–538.Google Scholar
  152. Zhang, W.M., Wolf, T.M., Bailey, K.L., Mortensen, K. and Boyetchko, S.M. 1998, Principles for selection of adjuvants used in bioherbicide formulations (Abstr), WSSA Abstracts 38:44.Google Scholar
  153. Zidack, N.K. and Backman, P.A. 1996, Biological control of kudzu (Pueraria lobata) with the plant pathogen Pseudomonas syringae pv. phaseolicola, Weed Sci. 44:645–649.Google Scholar
  154. Zidack, N.K., Backman, P.A. and Shaw, J.J. 1992, Promotion of bacterial infection of leaves by an organosilicone surfactant: implications for biological weed control, Biol. Control 2:111–117.Google Scholar

Copyright information

© Springer Science+Business Media New York 1999

Authors and Affiliations

  • Susan M. Boyetchko
    • 1
  1. 1.Saskatoon Research CentreAgriculture and Agri-Food CanadaSaskatoonCanada

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