Armillaria in the northern Rockies pathogenicity and host susceptibility on pristine and disturbed sites by G. I. McDonald

Cover of: Armillaria in the northern Rockies | G. I. McDonald

Published by U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station in Ogden, UT .

Written in English

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  • Armillaria,
  • Trees -- Rocky Mountains Region -- Growth,
  • Trees -- Diseases and pests -- Rocky Mountains Region

Edition Notes

Book details

StatementG.I. McDonald, N.E. Martin, A.E. Harvey
SeriesResearch note INT -- 371
ContributionsMartin, N. E, Harvey, A. E, Intermountain Research Station (Ogden, Utah)
The Physical Object
Pagination5 p. ;
ID Numbers
Open LibraryOL13611095M

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Title. Armillaria in the northern Rockies: pathogenicity and host susceptibility on pristine and disturbed sites / Related Titles. Series: Research note INT ; By.

McDonald, G. (Geral I.). Get this from a library. Armillaria in the northern Rockies: delineation of isolates into clones.

[G I McDonald; N E Martin; Intermountain Research Station (Ogden, Utah)]. Get this from a library. Armillaria in the northern Rockies: pathogenicity and host susceptibility on pristine and disturbed sites.

[G I McDonald; N E Martin; A E Harvey; Intermountain Research Station (Ogden, Utah); United States. Forest Service.].

Download book Download PDF Download All Download JPEG Download Text Armillaria in the northern Rockies: pathogenicity and host susceptibility on pristine and disturbed sites /Cited by: 1.

Armillaria is a genus of fungi commonly known as honey mushrooms. First treated by Elias Magnus Fries inand later assigned generic rank by Friedrich Staude inArmillaria is classified in the family Physalacriaceae of the Agaricales, the gilled mushrooms.

The majority of species in Armillaria are saprotrophic and live mainly on dead wood, but some are parasites Authority: The author citation—the person who first. Armillaria ostoyae (synonym Armillaria solidipes) is a species of plant-pathogenic fungus in the family is the most common variant, in the western United States, of the group of species under the name Armillaria mellea.

Armillaria ostoyae is common on both hardwood and conifer wood in forests west of the Cascade Range in Oregon, United : Agaricomycetes. A method of sorting a large population of Armillaria spp. isolates into clones is described. It was used to assign isolates from 87 randomly located ha plots within a mile radius of Moscow, Idaho, to by: 4.

Armillaria gallica (synonymous with A. bulbosa and A. lutea) is a species of honey mushroom in the family Physalacriaceae of the order species is a common and ecologically important wood-decay fungus that can live as a saprobe, or as an opportunistic parasite in weakened tree hosts to cause root or butt is found in temperate regions of Asia, North Family: Physalacriaceae.

Armillaria in the northern Rockies: pathogenicity and host susceptibility on pristine and disturbed sites Armillaria, Trees Rocky Mountains Region Growth, Trees Diseases and pests Rocky Mountains Region This book is available with additional data at Biodiversity Heritage Library.

Pages: Armillaria, is a genus of parasitic fungi that includes the A. mellea species known as honey fungi that live on trees and woody shrubs. It includes about 10 species formerly categorized summarily as A. mellea. Armillarias are long-lived and form some of the largest living organisms in the world.

The largest known organism (of the species Armillaria ostoyae) covers more than square Class: Agaricomycetes. Armillaria. 1, likes 63 talking about this. Progetto di ricerca editoriale. Saggistica contemporanea (I Cardinali) e testi antichi in nuove traduzioni, con apparati e testo a ers: K.

Armillaria in the northern Rockies: delineation of isolates into clones. Research Paper - Intermountain Research Station, USDA Forest Service, No.

INT pp. Armillaria. species are the most and broadly distributed forest tree pathogens in the world. ostoyae.

is the most pervasive killer of Douglas-fir and grand fir in the northern Rockies. A Disease of the Site. Armillaria. root disease should be considered a ―disease of the site‖. That is, established mycelia. The fungus, Armillaria mellea, occurs sporadically in this region and has been reported to infect over 25 species of ornamental trees and most distinctive sign of Armillaria infection is the honeycolored mushroom that grows from the roots and base of plants.

The fungus is especially prevalent on oak but also affects many different kinds of fruit and nut trees. Armillaria nabsnona, a new species from western North America. Thomas J. Volk 1. Harold H. Burdsall, Jr. Mark T. Banik. Center for Forest Mycology Research, Forest Products Laboratory, Forest Service, United States Department of Agriculture, One Gifford Pinchot Dr., Madison, Wisconsin 2.

1 Tom Volk’s current address: Dept. of Biology & Microbiology. Armillaria Root Rot (Also known as Mushroom Root Rot, Shoestring Root Rot, Honey Mushroom Rot) 4 should commit to planting a more diverse landscape because they tend to better withstand pests, diseases, and even severe weather events.

Symptoms of Armillaria root rot often do not appear until 1–3 years after infection has taken place. Armillaria sinapina Bérubé & Dessureault.

This species is similar in color to A. solidipes, with similar, although somewhat smaller dark scales on the pileus. It normally occurs singly or sometimes in clusters of two or three.

In the Northeast it can be found mainly on hardwoods and occasionally conifers, but in the Pacific Northwest (Idaho, Washington, Alaska, British. The Genus Armillaria [ Basidiomycota > Agaricales > Physalaciaceae by Michael Kuo. The genus Armillaria contains wood-rotting gilled mushrooms with white spore prints and gills that are attached to the stem or run down it.

Most of the species have a partial veil, but the veil can manifest in several different forms—from cob-webby ring zones to full-blown rings.

Armillaria-caused pine mortality was higher next to stumps with A. novae-zelandiae fruitbodies than to those with A. limonea fruitbodies, but this result, also, may merely reflect the relative colonising or fruiting ability of the two species.

The pathogenicity to P. radiata of other species of Armillaria in New Zealand is unknown. Scientific Name: Armillaria mellea Other Scientific Names: A.

mellea was used as a catch for most Armillaria species in the distant past. The genus has many species with a large number of obligate saprophytes and small number of true pathogens.

Rockies and Northwest groups (Figures 2b and 2c). It has been hypothesized that the origin of Armillaria species, A. novae-zelandiaeand A. luteobubalina of the Southern Hemisphere may precede the breakup of the supercontinent Gondwanaland (Coetzee et al.

In the Northern Hemisphere, the presence of a circumboreal group of A. ostoyae. Disease Notes: Armillaria Root Rot Robert Hartig () is considered the father of Forest Pathology.

It was he who in a monographic treatise in on Agaricus melleus described the pathology of what we now call Armillaria mellea.

mellea. Armillaria é um género de fungos parasitas que vivem em árvores e arbustos lenhosos. Inclui mais de 40 espécies antes agrupadas numa única, A.

fungos têm uma vida longa e formam alguns dos maiores organismos do mundo. O maior organismo individual (da espécie Armillaria ostoyae) cobre mais de km² e tem milhares de anos de idade. Algumas Classe: Agaricomycetes. The basidiomycete genus Armillaria s.l. (Armillaria s.s. and Desarmillaria) has a worldwide distribution and plays a central role in the dynamics of.

Armillaria mellea is a common disease producing fungus found in much of California. It commonly occurs naturally in roots of oaks but does not damage them unless they are weakened by other fac-tors.

When oaks are cut down, the fungus moves through the dead wood more rapidly than through living wood and can exist in old roots for many years. Armillaria root rot symptoms can by sly, starting out slowly with slowed growth and culminating with wood rot and mortality. Recognizing the disease and implementing a process of Armillaria root rot control can slow the disease.

More information can be found here. Hosts: Douglas-fir, spruce, true firs, oaks, and ponderosa pine. Figure White mycelial fans are found under the bark of infested trees. Symptoms/signs: The most diagnostic trait of Armillaria is the thick, fan-shaped mat of white mycelium in the cambium of roots and root crown.

This may be accompanied by copious resin flow on bark surfaces, although this trait is not common in. Armillaria ostoyaeand A. sinapina were found only in the northern portion of the sampling area (FIG. Their range seems to approximate the native range of a majority of northern conifer species.

This is similar to the findings of other researchers for these species (Blodgett, a; Guillaumin et al.,). Armillaria. Armillaria survives well in dead roots and stumps and in the soil as long, brown, shoestring-like structures.

These rhizomorphs (root-like structures) can grow for several feet through soil from stumps to nearby trees and from tree to tree. Occurrence of armillaria spp. in forests of the northern Rocky Mountains Item Preview remove-circle Armillaria, Root rots Rocky Mountains Region, This book is available with additional data at Biodiversity Heritage Library.

Abstract does not appear. First page follows. The root-rot fungus, Armillaria mellea (Vahl.) Quél., is known to occur throughout the world in both temperate and tropical regions.

The fungus, which was originally described as Agaricus melleus Vahl., is sometimes called Armillariella mellea Karst.

Armillaria fuscipes Petch is also a synonym. Armillaria mellea: a destructive pathogen of trees. The genus Armillaria contains about 40 species of important wood-rot fungi which are widely distributed across the world. Their basic behaviour is similar, because all the species invade the roots and cause a progressive white rot (see later).

Armillaria root disease is caused by several closely related species of Armillaria. Armillaria ostoyae is the most prevalent and destructive of the Armillaria spp. The causal fungus of Armillaria root rot can remain alive for many years in rotting wood on the ground.

Some root disease centers have been estimated to be more than years in age. INTRODUCTION. Armillaria root disease is attributed to a group of fungi that occurs worldwide in boreal, temperate and tropical forests.

The fungi affect a broad variety of tree species (4). These fungi were previously thought to be one species, known as Armillaria mellea, however, research has shown that there are actually a number of species within the Armillaria group.

SYMPTOMS AND SIGNS. Roots infected with Armillaria mellea have white to yellowish, fan-shaped mycelial mats between the bark and the wood. Dark brown to black rhizomorphs sometimes can be seen on the root surface. All stone fruit rootstocks are susceptible sometimes to Armillaria root rot.

Identification of Armillaria species in California The origin of clamped and clampless basidia in Armillaria ostoyae Infection, Disease Development, Diagnosis and Detection Jan Armillaria, honey mushrooms at the base of oak tree. A fungal disease causing decay and death Armillaria is a root rotting fungus.

Most tree diseases affect only one type of tree. Armillaria kills almost any kind of tree. There are multiple species of this fungus, ranging from mild to aggressive. Infected trees need altered environmental conditions. Scientific Name: Armillaria tabescens Other Scientific Names: Clitocybe tabescens Common Names: Mushroom root rot; Clitocybe root rot; Ring-less Armillaria Common Hosts: Hardwoods and conifers; Often fruiting from the roots of maples and oaks but a very wide host range; Over plants species in 60 families and genera (Rhodes.

), including shrubs, fruit trees. Armillaria Fungus. The Armillaria family is composed of approximately 30 different fungal species. Although many types of Armillaria fungi cause Armillaria rot, the Armillaria mellea and. Plants Resistant or Susceptible to Armillaria Root Rot Resistant Susceptible Trees incense cedar all pines arborvitae larch cedar Scots pine Douglas Plants Resistant or Susceptible to Verticillium Wilt Raabe, R.D.

Resistance or Susceptibility of Certain Plants to Armillaria Root Rot. University of California Leaflet Fungi. Pests in Gardens and Landscapes.

Armillaria root rot (Oak root fungus) — Armillaria mellea. Armillaria root rot, also known as oak root fungus disease or shoestring disease, affects mostly woody plants but also affects certain herbaceous perennials, such as begonia, carnation, daffodil, dahlia, geranium, and peony.Armillaria mellea [ Basidiomycota > Agaricales > Physalaciaceae > Armillaria by Michael Kuo.

The classic "honey mushroom," Armillaria mellea, was first named from Europe in the 18th Century; here in North America it turns out to be limited to roughly the eastern half of North America, from about the Great Lakes to the Gulf Coast and the East Coast—although it has.

Michigan is first in tart cherry producing state in the US with total production of approximately million pounds each year. Michigan also contributes about 10% of the national production of sweet cherry. All together, the production of tart and sweet cherries is an important part of the overall agricultural economy of Michigan.

Armillaria root rot is a potentially .

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