phytophthora species

Listing 1 - 10 from 100 for phytophthora species

Phytophthora Root and Crown Rot of Fruit Trees, HYG-3029-95
... and Disease Cycle Phytophthora root and crown rots are caused by several Phytophthora species. These are all soilborne fungi, many of which are common inhabitants of most orchard soils. Some species that are not ... margin of safety, especially in a wet year. Select rootstocks or tree species that are less susceptible to Phytophthora and are best adapted to your individual site. Pears are the most ...
ohioline.osu.edu

Phytophthora Root Rot of Raspberry, HYG-3207-98
... Phytophthora root rot is caused by several related species of soilborne fungi belonging to the genus Phytophthora. To date, P. megasperma, P. cryptogea, P. citriocola, P. cactorum, and at least two additional unidentified Phytophthora species ...
ohioline.osu.edu More from this site

Angela Nelson
... have found multiple species of Phytophthora associated with symptomatic tissue, and completed Koch’s postulates for both P. citricola and P. cactorum. Given the impact that Phytophthora species have had on ecosystems in the past, and the current changes occurring in Phytophthora taxonomy, I am working to further define ...
ppathw3.cals.cornell.edu

APSnet Education Center - Lab Exercise - Oomycetes
... 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 ... from filamentous in some species to round in other species. Sporangia of Phytophthora species are often lemon-shaped. Lemon-shaped sporangia of Phytophthora megasperma. (Courtesy F.A. Gray) ...
www.apsnet.org

New Disease Reports - First report of Phytophthora palmivora on olive trees in Argentina
... of citrus leprosis virus (CiLV-C) in Honduras, Central America First report of Phytophthora palmivora on olive trees in Argentina G. Lucero1, A.M. Vettraino2, P. Pizzuolo1, C ... molecular phylogeny of Phytophthora and related Oomycetes. Fungal Genetics and Biology 30, 17–32. Jung T, Blaschke H, Neumann P, 1996. Isolation, identification and pathogenicity of Phytophthora species from declining ...
www.bspp.org.uk

New Disease Reports - First report of Phytophthora citricola on Mangifera indica in Spain
... . 1). In July 2004, a Phytophthora species was isolated at low frequency from surface-disinfected necrotic roots using a Phytophthora-selective medium (Tsao & Ocana, 1969). ... sequences of known Phytophthora species obtained from GenBank. The closest matches (99% identity) were with Phytophthora citricola. Morphological and molecular results confirmed this species as Phytophthora citricola Sawada. ...
www.bspp.org.uk More from this site

Fruit Disease Focus - Phytophthora Root, Crown and Collar Rots  - June, 1998
... contaminated soil and water. Although the individual Phytophthora species vary somewhat in certain biological characteristics and their abilities to attack specific tree species and rootstocks, all have one ... of resistance and susceptibility to Phytophthora root and crown rots must be recognized as generalizations only, due to the array of Phytophthora species that potentially can be involved. ...
www.caf.wvu.edu

Phytophthora Root Rot of Rhododendron and Azalea
... Phytophthora. Several different spe of Phytophthora have been reported to cause similar symptoms, but Phytophthora cinnamomi and Phytophthora parasitica are recovered most frequently from diseased plants in Virginia. In addition to rhododendron and azalea, Phytophthora species ...
www.ext.vt.edu

APSnet Education Center - Plant Disease Lessons - Phytophthora blight of cucurbits
... Phytophthora blight of cucurbits PATHOGEN: Phytophthora capsici HOSTS: cucurbits (cantaloupe, cucumber, gourd, honeydew, pumpkin, squash, watermelon), eggplant, peppers, tomatoes, and several other vegetable and weed species ...
www.apsnet.org

Phytophthora in Forests & Natural Ecosystems - Albany 2001
... Second International Meeting on Phytophthora in Forests and Natural Ecosystems. This will be held in Albany, Western Australia from 30 September to 5 October 2001. Phytophthora cinnamomi has been estimated to directly affect over 2000 of the 9000 native plant species in the Southwest of Western Australia, and ...
wwwscience.murdoch.edu.au

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