pythium species

Listing 1 - 10 from 59 for pythium species

nvps journal:PRELIMINARY REPORT ON STEM AND ROOT ROT OF VIOLA AND PANSY
... series of beds planted with cuttings in March 1934, and examined after flowering, on 14th June, 1934. Pythium species were observed in not less than four plants of the following varieties: 'John Adamson', ' ... examination from Wales and H was isolated from soil surrounding certain infected plants. When the three species are grown upon agar jelly, H exhibits more profuse growth than D or E, while the ...
myweb.tiscali.co.uk

Fungal Biology Research-Cornell Plant Pathology
... ; the integration of population biology and plant disease epidemiology. Dr.Eric NelsonEcology and development of oomycetes in the spermosphere and rhizosphere with special emphasis on plant pathogenic Pythium species. Of special interest is understanding how microbial interactions and plant associations influence Pythium development and pathogenesis. Dr. Rebecca NelsonThe genetics of quantitative ...
ppathw3.cals.cornell.edu

Canadian Journal of Plant Pathology, Volume 26, Number 3, September 2004
... H. Toubia-Rahme and B.J. Steffenson Pages 358-364 Abstract / Résumé Soilborne pathogens / Agents pathogènes telluriques Identification of Pythium species associated with cavity-spot lesions on carrots in eastern Quebec N. Allain-Boulé, C.A. Lévesque, C. Martinez, R.R. Bélanger, and R.J. Tweddell Pages 365-370 Abstract / Résumé Taxonomy / Taxonomie Leaf spot ...
pubs.nrc-cnrc.gc.ca

Yephet Ben-Yephet
... Ben-Yephet, Y., Lampel, M., Reuven, M., Kogan, N. and Manulis, S. 1996. Pathogenicity of Pythium spp. isolated from different hosts on Gypsophila paniculata. Dappe Meda 10:70-72 (in Hebrew) ... Yephet, Nelson, Eric, Reuven, Michal, Lampel, Miriam, Kogan, Nina and Manulis, Shulamit 1998. Presence of Pythium species in Gypsophila nurseries in Israel. Dappe Meda 2 (October): 68-69 (in Hebrew). Abstracts ...
www.agri.gov.il

APSnet Education Center - Lab Exercise - Oomycetes
... and damping-off, which involves seed rot and pre- and post-emergence seedling death. Phytophthora species cause late blight of potato and tomato, foliar blights on peppers and cucurbits, and root ... of Phytophthora, differentiation of zoospores occurs in the sporangium. In contrast, in many Pythium species, the sporangium produces a short tube to which is connected a secondary structure referred to as ...
www.apsnet.org

Forest Insect and Disease Management
Forest Insect and Disease Management BOT/FS 415/515 Forest Insect and Disease Management Fall 2006 Pathogens and diseases to recognize and understand SEEDLING PATHOGENS Pythium species Damping off Fusarium oxysporum Fusarium root rot Phoma eupyrena Top blight Phytophthora species Phytophthora root rot ROOT PATHOGENS Phellinus weirii Laminated root rot Armillaria ostoyae Shoestring root rot ...
www.bcc.orst.edu

Diseases of Pickling Cucumbers
... F retard disease development during transit and storage. Cottony Leak Occurrence and importance. Cottony leak (Pythium fruit rot) causes serious losses of cucumber in North Carolina and other southeastern states. Infection ... weather over a wide range of temperatures. Often it is worse after a drought. The Pythium species, which cause this disease, remain in the soil and attack a number of different ...
www.ces.ncsu.edu

Pythium root rot in tobacco greenhouses
... , and colonize them. Zoospores are the main means of dissemination of this pathogen in this system. Pythium will also form resting structures (chlamydospores and oospores) that will allow them to survive for long periods in ... at water temperatures above 72 F. No above ground symptoms have been observed with the other Pythium species at 72 F, but seedlings do have root rot and a poor root system at ...
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CPS-CPDS-Table of Contents-1980
... 25-32 Incidence of Phytophthora root-rot of soybeans in Essex County, Ontario in 1979 T.R. Anderson Pages 33-34 Volume 60 (4), 1980 Pythium species in alfalfa fields in central Alberta D. Srelfox and J.R. Williams Pages 35-36 Current status of little cherry disease in British Columbia J.T. Slykhuis, J. Yorston, J. Raine, R.D. McMullen and Thomas S.C ...
www.cps-scp.ca

Potato Pink Rot, Pythium Leak and Seed-Piece Decay, HYG-3104-95
... rainfall or irrigation either early or late in the season, especially on poorly-drained soils. Symptoms Pythium seed-piece decay often results in delayed emergence and poor stands. Infected seed pieces become a ... leak and seed-piece decay are caused by several species of the closely related soilborne fungus Pythium. These fungi are widely distributed in both water and soil, and their behavior is ...
ohioline.osu.edu