pythium species

Listing 1 - 10 from 59 for pythium species

nvps journal:PRELIMINARY REPORT ON STEM AND ROOT ROT OF VIOLA AND PANSY
... 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', ' ... 1926 Solberg reported the presence of Pythium de Baryanum and other Pythium species in diseased roots of cultivated species of Viola in Norway, and in 1934 Kaven described Pythium de Baryanum as a common ...
myweb.tiscali.co.uk

Fungal Biology Research-Cornell Plant Pathology
... 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 Nelson—The genetics of ...
ppathw3.cals.cornell.edu

Canadian Journal of Plant Pathology, Volume 26, Number 3, September 2004
... 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, ... / Résumé Forest pathology / Pathologie forestière Winter damage caused by Typhula ishikariensis biological species I on conifer seedlings and hop roots collected in the Volga–Ural regions ...
pubs.nrc-cnrc.gc.ca

Yephet Ben-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). ... 30:311. Ben-Yephet, Y., Reuven, M., Zviebil, A., 2002. Toxicity of formaldehyde to Pythium following repeated applications. Phytoparasitica 30:310. Current Projects Soilborne diseases: My research activities ...
www.agri.gov.il

APSnet Education Center - Lab Exercise - Oomycetes
... Pythium and Phytophthora. Pythium species cause a variety of diseases including root rots of numerous plant species and damping-off, which involves seed rot and pre- and post-emergence seedling death. Phytophthora species ... by means of two flagella. In species of Phytophthora, differentiation of zoospores occurs in the sporangium. In contrast, in many Pythium species, the sporangium produces a short ...
www.apsnet.org

Forest Insect and Disease Management
... 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 ... wagnerii Blackstain root disease Leptographium species Blue stain CANKER PATHOGENS Atropellis piniphila Atropellis canker Cryphonectria parasitica Chestnut blight Phomopsis species Drought canker Fusarium ...
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. ... is worse after a drought. The Pythium species, which cause this disease, remain in the soil and attack a number of different host plants. Figure 4. Pythium sp. growing on cucumber fruit. ...
www.ces.ncsu.edu

Pythium root rot in tobacco greenhouses
... P. volutum are the most aggressive species affecting tobacco seedlings 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 transplanting time. Aggressive isolates can kill seedlings in a few days. The severity of Pythium ...
www.ces.ncsu.edu More from this site

CPS-CPDS-Table of Contents-1980
... 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 ...
www.cps-scp.ca

Potato Pink Rot, Pythium Leak and Seed-Piece Decay, HYG-3104-95
... species of the soilborne fungus Phytophthora (NOT the species that causes late blight) while Pythium leak and seed-piece decay are caused by several species of the closely related soilborne fungus Pythium ... wounds, but Phytophthora generally infects tubers before harvest, often through stolons. Infection by Pythium usually occurs through harvest wounds, especially at temperatures above 70 F. Seed ...
ohioline.osu.edu

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