diseased roots

Listing 1 - 10 from 207 for diseased roots

nvps journal:PRELIMINARY REPORT ON STEM AND ROOT ROT OF VIOLA AND PANSY
... . In 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 ... Pythium were first isolated in July, 1934, and since then have been frequently obtained from diseased material. When compared with one another it was evident that the three species existed which ...
myweb.tiscali.co.uk

Vegetable Crops - pt 3
... terrestris): Pink root is strictly a soilborne disease. Diseased roots turn pink in color, shrivel and die. As the plant sends out new roots, they become infected and die. Affected plants do not ... disease is frequently unnoticed in the field because damage usually occurs during transit and storage. Diseased tissue at the base of the crown becomes sunken and watersoaked in appearance. A gray ...
plantpathology.tamu.edu

Vegetable Crops - pt 5
... the crop will be lost. With a change in weather, the diseased foliage drops off and the healthy foliage goes on to produce ... sometimes confused with growth cracks. The splitting of small whip-like roots with small black surface lesions will reveal tiny, pearly-like ... and spores are easily spread by mites so that a few diseased roots may result in severe storage losses. Select seed potatoes carefully ...
plantpathology.tamu.edu More from this site

New Disease Reports - First report of root rot of stevia caused by Sclerotium rolfsii in India
... spread to the stem and roots, with associated tissue rotting (Fig. 2). On the diseased areas, brown sclerotia were observed. A fungus was consistently isolated from diseased roots plated on potato dextrose ... assessed 30 days after planting. Inoculated plants developed typical symptoms on leaves, stem and roots, and S. rolfsii was consistently re-isolated. Uninoculated plants did not show any symptoms ...
www.bspp.org.uk

New Disease Reports - First report of Fusarium sporotrichioides causing root rot of Erigeron breviscapus in China
... Mile County, Yunnan province of China. The initial symptoms of brown necrosis began in lateral roots, then advanced to the base of the stems. Plants withered, dried and died within ... The disease spread rapidly to neighbouring plants through irrigation water. Tissue fragments taken from the diseased roots, at the edge of necrotic areas, were surface sterilised, transferred to potato dextrose agar ...
www.bspp.org.uk More from this site

SWEETPOTATO SCURF
... roots will produce sprouts but some will be infected and many become contaminated with spores in the soil around the bedded roots. Healthy roots may become contaminated with fungus spores from diseased roots, and contaminated crates, baskets, and storage houses. During grading operations, spores from diseased roots ...
www.ces.ncsu.edu

CPS-CPDS-Table of Contents-1982
... Jacquelin Santerre et Roger Levesque Pages 13-19 Volume 62 (2), 1982 Fungi recovered from diseased roots and crowns of alfalfa in north central Alberta and the relationship between disease severity and ...
www.cps-scp.ca

Miltoniopsis Culture
... begin growing the next spring. GROWING MEDIA: The fine, threadlike roots of Miltoniopsis plants are easily killed if the medium is ... medium intact. All old medium should be removed, any damaged or diseased roots trimmed off, and the plant repotted using all fresh medium ... clean pot with fresh medium. Before repotting, the dark, soft, diseased roots should be trimmed off. The plant should then be soaked ...
www.orchidculture.com

Neofinetia falcata Culture
... Orchid Society Bulletin article, Kichigoro Suszuki reported that this species loves moving air across its roots and must have a well-aerated medium. He recommended repotting in late winter or early ... pot. While potting, the roots are easily broken. Never cut or tear off the broken or damaged roots because they are still alive. However, all dead or diseased roots should be removed before potting ...
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Mycorrhiza, roots and California Native Plants, native landscaping
... plants require fungi growing on their roots. This is called mycorrhiza (Fungus root). Roots can be 5 times bigger than ... many small white root hairs Some differences between plants' roots. (Not cast in cement) Ruderals Circumventers Stress tolerants root ... mycorrhizal partner for some species of plants. Alien species, diseased, or altered native species (watered, fertilized or sprayed) are attacked. ...
www.laspilitas.com

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