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Tuesday, May 19, 2020 | History

2 edition of Polyporus tomentosus root rot of conifers found in the catalog.

Polyporus tomentosus root rot of conifers

R. D. Whitney

Polyporus tomentosus root rot of conifers

by R. D. Whitney

  • 132 Want to read
  • 27 Currently reading

Published by Minister of Supply and Services Canada. in Ottawa .
Written in English

    Subjects:
  • Conifers -- Diseases and pests.,
  • Root rots.

  • Edition Notes

    Bibliography: p. [10-11]

    StatementR. D. Whitney.
    SeriesForestry technical report -- 18.
    The Physical Object
    Pagination[12] p. :
    Number of Pages12
    ID Numbers
    Open LibraryOL16018358M
    ISBN 100662006348

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    Polyporus varius [ Basidiomycota > Polyporales > Polyporaceae > Polyporus by Michael Kuo. Typically fruiting on smaller hardwood sticks and decaying branches, this polypore is fairly easily recognized by its small size, its pale pore surface, and its black, or half-black, more or less central stem. The black covering on the stem is absent in young specimens, and then appears at the base. In the "olden days" Polyporus was a catch-all genus for any hard, wood-decay mushroom that had pores (instead of gills or teeth) on the underside. Now the genus Polyporus is restricted to polypore fungi that cause a white rot, i.e. are able to digest lignin, see this page for a better explanation of rots.

    Heterobasidion annosum sensu lato (s.l.) species are destructive pathogens causing root and butt rot in conifers. The species complex consists of five species: H. annosum sensu stricto (s.s.), H. abietinum, H. parviporum, H. irregulare and H. occidentale. The aim of this thesis was to improve the understanding of fungal virulence in this species : Yang Hu.   Buy A Natural History of Conifers by Aljos Farjon (ISBN: ) from Amazon's Book Store. Everyday low prices and free delivery on eligible orders/5(15).


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Polyporus tomentosus root rot of conifers by R. D. Whitney Download PDF EPUB FB2

The fungus causes red butt rot in the woody tissues of the roots and the lower part of the trunk. The spores gain entry through a wound on the roots or on the trunk and the infection spreads toward the main root and the large lateral roots.

This fungus produces a white pocket rot commonly called Tomentosus root rot in both roots and butts of naturally seeded or planted conifers.

White spruce and black spruce were found to be the 2 most susceptible species in an inoculation test in Saskatchewan (Whitney ), [4] and high losses to root rot, in large part due to I. tomentosus Family: Hymenochaetaceae.

Common Macrofungi in Eastern Forests and Their Ecosystem Functions Michael E. Ostry Neil A. Anderson (Inonotus tomentosus, Polyporus tomentosus) 80 On the ground Pathogenic fungi such as the root and butt rot fungi illustrated in this guide can be File Size: 5MB.

tomentosus Fr.:Fr. var. circinatus (Fr.) Sartor and Maire), a cause of “red root and butt rot” of various conifers (Boyce ; Whitney ; Patton and Myren ; Sinclair et al. ), is a predominant pathogen in diseased roots of sand.

Conifers is an extremely thorough and well-illustrated book that will be a great asset to landscape architects and horticulturists. -- Landscape Journal This is a scrumptious atlas for all lovers of gymnosperms.

-- Taxon, August Cited by: 7. Phytophthora root rot of conifers is caused by fungi in the genus Phytophthora. Many species of fir, true cedars, white-cedar (arborvitae), larch, pine, spruce, yew and Douglas-fir are affected.

It produces a swimming spore called a zoospore. Symptoms and Diagnosis. POLYPORUS DRYADEUS, A ROOT PARASITE ON THE OAK By W. LONG, Forest Pathologist, Investigations in Forest Pathology^ Bureau of Plant Industry Bulliard (, )* figured and described under the name Boletus pseudo-igniarius a fungus which most European mycologists believe is the plant now called Polyporus ntly the next record.

Diseases of Austrocedrus sp. Austrocedrus chilensis Foliage Disease White needle rust Mikronegeria alba Oehrens & R. Peterson—1 Phytophthora Disease Mal del ciprés Phytophthora austrocedri Gresl.

& E. Hansen—1 (syn. austrocedrae Gresl. & E. Hansen) Diseases of CALOCEDRUS spP. (Incense Cedar) 1. Calocedrus sp. Polyporus tomentosus Fr., Systema Mycologicum 1: () [MB#].

Polyporus tomentosus root and butt rot of trees in Canada. In: Dimitri, L. (Ed.), Proceedings of the Fifth International Conference on Problems of Root and Butt Rot in Conifers.

: Kathy J. Lewis. Inoculation experiments have shown that P. tomentosus grows about in. per year, and that the fungus is parasitic on white rus tomentosus may enter healthy roots at a point of.

Query: SELECT * FROM img WHERE ready=1 and genre = "Fungi" and taxon = "Polyporus tomentosus" ORDER BY taxon. Click on the thumbnail to see an enlargement. Polyporus tomentosus ID: CalPhotos is a project of BNHM University of California. Wound parasite. It is not uncommon for the diameter of the fruiting bodies to be 40 cm ( in) large.

This fungus may be called many names - including annosum root rot, annosus root rot, or Heterobasidion root rot – and is caused by Heterobasidion irregulare (formerly named Heterobasidion annosum and Fomes annosus).This fungus is present throughout North America, has a very wide host range, and is commonly found in southeastern U.S.

forests. Describes root rots caused by Fomes annosus, F. pinicola, F. robustus, Armillaria mellea and Polyporus tomentosus, and heart rots caused by Lenzites sepiaria, L. striata, L. subferruginea, Poria monticola P. rixosa, Polyporus schweinitzii and Fomes roseus.

KEYWORDS: Annosus butt rot \ Armillaria root rot \ decay \ trees \ fungal diseases \ protection \ forests \ site preparation \ forestry \ Cited by: 6. Conifer - Conifer - Roots: Roots gather water and mineral nutrients from the soil and anchor and support the above-ground portions.

Most conifers have rather shallow, if wide-spreading, root systems, making the trunks highly susceptible to wind and surface disturbance. Even the largest conifers are no exceptions, and many of the individual giant sequoias (Sequoiadendron giganteum) in national.

out of 5 stars A Natural History of Conifers. Reviewed in the United States on November 9, Verified Purchase. This is an excellent book, well-written and well-illustrated - the fascinating story of the rise and decline of conifers through the ages. Read more. 2 Cited by: R. Whitney has written: 'Polyporus tomentosus root rot of conifers' -- subject(s): Diseases and pests, Conifers, Root rots 'The hidden enemy' -- subject(s): Root rots, Trees, Diseases and pests.

Polyporus radicatus [ Basidiomycota > Polyporales > Polyporaceae > Polyporus by Michael Kuo. This Midwestern and eastern polypore appears to be terrestrial, but it actually fruits from buried wood. It is usually solitary, and on casual inspection it looks like anything but a polypore—until you feel its tough consistency and see the underside of the cap, which has a white, Polyporus-ish.

Polyporus squamosus Host: Hardwood Annual or Perennial: Annual Hymenium: Pores Fruiting Location: Main trunk and Upper trunk-branches Stem: Present Shape and Texture: Fleshy mushroom Thickness: None Commont Host: Horsechestnut and Maple Urban.

The disease is a rot of conifers in many temperate parts of the world. The decay, called annosus root rot, often kills conifers. It occurs over much of the Eastern U.S. and is very common in the South. The fungus,Fomes annosus, usually enters by infecting freshly cut stump surfaces.

That makes annosus root rot a problem in thinned pine plantations.Introduction: Heterobasidion annosum (Fr.) Bref., also known as annosum root rot, is a basidiomycete fungus that is considered to be the most economically important forest pathogen in the Northern Hemisphere.

In Europe alone, H. annosum is responsible for the loss of million euros annually (1 billion dollars US), and this pathogen is also widespread in forests in the USA.A study of randomly selected conifers revealed a statistically significant relationship between the presence of bark beetles and root rots (mainly Armillaria [Armillariella] mellea and Polyporus schweinitzii), particularly in Pseudotsuga menziesii, Abies grandis and Pinus ONAL ABSTRACT:Reports statistically significant relations between the presence Cited by: