Plant Pathology Journal1812-53871812-5425Asian Network for Scientific Information10.3923/ppj.2006.356.361AmeinT. 3200653Using soil bioassays and isolations from field plants to survey soil-borne fungi causing sugar beet diseases in commercial fields in southern Sweden, damping-off pathogens, Aphanomyces cochlioides, Pythium sp. and Rhizoctonia solani,were the main pathogens found. Of the 1260 plants sampled from 28 fields, 8.5% were infected by these pathogens. Of 1120 seedlings grown in greenhouses in soil from these fields, 6.4% were infected by A. cochlioides and 10.7% were infected by Pythium sp. P. sylvaticum (for first time reported as a pathogen of sugar beet in Sweden). P. ultimum and A. cochlioides were also frequently isolated and were pathogenic in all tests. R. solani AG-2-1was occasionally isolated and Fusarium sp. were frequently isolated, but were in most cases not pathogenic to test plants. Field soil sampling, seedling sampling, isolations and symptom assessments all indicated that Pythium sp. was predominantly the cause of pre-emergence damping-off, but diseased seedlings in later stages were infected mainly by A. cochlioides. In general, historically high-yielding fields in the area had less seedling diseases and damping-off problems than average yielding fields.]]>Arrhenius, O.,19231923Baker, E.M. and C.M. Rush,1988Pythium sp.]]>7815661566Beale, J.W., C.E. Windels and L.L. Kinkel,2002Aphanomyces cochlioides and root rot in sugar beet fields.]]>86547551Booth, C., 1971Fusarium.]]>Pages: 237Pages: 237Buchholtz, W.F.,1938Pythium debaryanum on sugar beet seedling.]]>28448474Duffus, J.E. and E.G. Ruppel,1993pp: 346-427pp: 346-427Ewaldz, T.,19921169171Harveson, R.M. and C.M. Rush,1997Fusarium oxysporum isolates from sugar beet as determined by vegetative compatibility.]]>818588Harveson, R.M. and C.M. Rush,1998Fusarium root rot isolates from sugar beet by crowth and virulence at different temperatures and irrigation regimes.]]>8210391042Harveson, R.M. and C.M. Rush,200286901908Hendrix, F.F. and W.A. Campbell,1973Pythium as plant pathogens.]]>117798Jacobsen, B.J., D. Collins, N. Zidack, J. Eckhoff and J. Bergman,2000Bacillus sp. seed treatments for control of Pythium and Aphanomyces root rots.]]>30277278Kiewnick, S., B.J. Jacobsen, A. Braun-Kiewnick, J.L.A. Eckhoff and J.W. Bergman,2001Rhizoctonia crown and root rot of sugar beet with fungicides and antagonistic bacteria.]]>85718722Martyn, R.D.,198911879884Nelson, P.E., T.A. Toussoun and W.F.O. Marasas,1983Fusarium Species: An Illustrated Manual for Identification.]]>1st Edn.,Pages: 226Pages: 226Newhook, F.J., B.R. Young, S.D. Allen and R.N. Allen,1981101202209Olsson, A.,2001Aphanomyces cochlioides orsakar Rotbrand pa sockerbeta.]]>44649Olsson, A.,200232832Osburn, R.M., M.N. Schroth, J.G. Hancock and M. Hendson,1989Pythium ultimum and Pseudomonas Species: Effects on rot and damping-off.]]>79709716O'Sulivan, E. and J.A. Kavanagh,1991Rhizoctonia sp. associated with damping-off of sugar beet.]]>40128135O`Sulivan, E. and J.A. Kavanagh,1992Pythium sp. associated with damping-off of sugar beet in Ireland.]]>41582590Papavias, G.C. and W.A. Ayers,1974pp: 1485pp: 1485Payne, P.A., M.J.C. Asher and C.D. Kershaw,1994Pythium sp. and Aphanomyces cochliodes associated with the sugar-beet growing soils of Britian.]]>43300308Persson, L.,200333437Runeson, I.,19903221223Rush, C.M.,1987Aphanomyces cochlioides on sugar beet in Texas.]]>729797Rush, C.M. and S.R. Winter,1990Rhizoctonia root crown rot of sugar beet.]]>74421425Schmidt, C.S., F. Agostini, C. Leifert, K. Killham and C.E. Mullins,2004Pythium damping-off by the antagonistic bacteria Pseudomonas fluorescens and Bacillus subtilis.]]>94351363Scot, W.W.,1961Aphanomyces.]]>151195Sneh, B., L. Burpee and A. Ogoshi,1991pp: 1-125pp: 1-125Van der Plaats-Niterink, A.J.,1981Pythium.]]>211244Weiland, J.J. and J.L. Sundsbak,200084475482Whitney, E.D. and J.E. Duffus,1986pp. 76pp. 76Windels, C.E.,198819125132Windels, C.E. and H.A. Lamey,1998pp: 1142pp: 1142Yamaguchi, T.,1977Pythium.]]>118152