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Sunday, July 26, 2020 | History

1 edition of Epidemiology of Fusarium on containerized Douglas-fir seedlings. found in the catalog.

Epidemiology of Fusarium on containerized Douglas-fir seedlings.

Epidemiology of Fusarium on containerized Douglas-fir seedlings.

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Published by U.S. Dept. of Agriculture, Forest Service, Northern Region in Missoula, Mont .
Written in English

    Subjects:
  • Fusarium.,
  • Fusarium diseases of plants.,
  • Douglas fir -- Seedlings, Container.,
  • Douglas fir -- Diseases and pests.

  • Edition Notes

    Statementby R.L. James ... [et al.].
    SeriesForest pest management, Report -- 87-13., Report (United States. Forest Service. Northern Region) -- no. 87-13.
    ContributionsJames, Robert L., United States. Forest Service. Northern Region., United States. Forest Pest Management.
    The Physical Object
    Pagination22 p. ;
    Number of Pages22
    ID Numbers
    Open LibraryOL16140272M

    Forest Pest Management SD/4-• A-3 ft • Report December EPIDEMIOLOGY OF FUSARIUM ON CONTAINERIZED DOUGLAS-FIR SEEDLINGS. 1. SEED AND SEEDLING INFECTION, SYMPTOM PRODUCTION, AND DISEASE PROGRESSION • by R. L. James, Plant Pathologist 1/ R. K Dumroese, Research Associate 2/ D. L Wenny, . Fusarium species can cause severe root disease and damping-off in conifer um inoculum is commonly found in most container and bareroot nurseries on healthy and diseased seedlings, in nursery soils, and on conifer seeds. Isolates of Fusarium spp. can differ in virulence; however, virulence and colony morphology are not correlated. Forty-one isolates of Fusarium .

    1. Introduction. Fusarium head blight (FHB), also called ear blight or scab, is a major fungal disease affecting several gramineous hosts including wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.).The disease occurs throughout much of the world and is associated with several Fusarium spp. including Fusarium graminearum Schwabe (teleomorph: Gibberella Cited by: Greenhouse environment and epidemiology of grey mould of container-grown Douglas-fir seedlings. Canadian Journal of Forestry Research Smith, R.S., Jr. Fusarium .

      In a laboratory experiment, Douglas-fir (Pseudotsuga menziesii var. glauca [Beissn.] Franco) seedlings had similar disease ratings when treated with known Fusarium isolates or concurrently with Fusarium and Streptomyces griseoviridis. When tested under greenhouse conditions and against known Fusarium isolates, more seeds germinated and survived as seedlings . The sources of inoculum on container-grown seedlings is unclear; however, Fusarium can be seed-borne or infection may result from wind-borne spores. Management Disease losses can be reduced in container nurseries that have a well-drained and aerated growing medium and that use irrigation regimes for preventing stress.


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Epidemiology of Fusarium on containerized Douglas-fir seedlings Download PDF EPUB FB2

Epidemiology of Fusarium on containerized Douglas-fir seedlings. I, Seed and seedling infection, symptom production, and disease progression Public Deposited. Investigations were conducted to understand the epidemiology of Fusarium on containerized Douglas-fir seedlings.

Types and importance of Fusarium inoculum sources, relationships Cited by: Investigations were conducted to understand the epidemiology of Fusarium on containerized Douglas-fir seedlings. Types and importance of Fusarium inoculum sources, relationships between seedling infection and symptom production, amounts and types of diseases that occurred throughout typical growth cycles, and the importance of secondary pathogen spread.

Fusarium: Epidemiology, Environmental Sources and Prevention (Botanical Research and Practices): Medicine & Health Science Books @ mat: Hardcover. PDF | On Jan 1,Robert L. James and others published Epidemiology of Fusarium on Containerized Douglas-fir Seedlings.

Seed and Seedling lnfection, Symptom Production, and Disease Progression. Abstract. Investigations were conducted to understand the epidemiology of Fusarium on containerized Douglas-fir\ud seedlings.

Types and importance of Fusarium inoculum sources, relationships between seedling infection\ud and symptom production, amounts and types of diseases that occurred throughout typical growth cycles,\ud and the importance of secondary.

Fusarium oxysporum Protection of Douglas-fir Seedlings from Root Disease removed seedlings from their containers and gently shook the media from roots. All seedlings in the “absent” F. commune H14 treatments were transplanted into non-inoculated Pro-Mix® HP ( total), whereas seedlings inCited by: 7.

Pests, # of the USDA Forest Service Ag. Handbooks. Diseases of Douglas-fir seedlings caused by Fusarium oxysporum, a Phytopathology book written by W.J. Bloomberg, was also a helpful source. Fusarium root rot is a disease that is a concern for container.

seedlings are often infected with Fusarium spp., they rarely dis­ play disease symptoms (James and Gilligan a). However, Douglas-fir (James and others ), Engelmann spruce (James and Gilligan ), and western larch (James c) seedlings display disease symptoms much more commonly.

Fusarium circinatum is the causal agent of the disease known as pitch canker of pine. The fungus causes resinous cankers on stems and branches of mature trees, dieback of female flowers and cones, as well as root rot and pre- and post emergence damping off of seedlings.

Since the s, our scientific research has helped create some of the most successful working forests in the world, available to you today in Weyerhaeuser seed and seedlings. Christmas Tree Seedlings. Decades of scientific research in popular Christmas tree species provides an advantage to growers nationwide.

Availability and Ordering. Fusarium oxysporum Protects Douglas-fir (Pseudotsuga menziesii) Seedlings from Root Disease Caused by Fusarium commune Epidemiology of Fusarium on Containerized Douglas-fir Seedlings. The role of seedborne Fusarium in root colonization of container-grown Douglas-fir seedlings was studied in two coastal Douglas-fir seedlots; one contaminated with Fusarium and the other with minimal Fusarium.

Seedlots were treated using either a standing water imbibition, or a running water imbibition with a post-stratification hydrogen peroxide sanitation treatment. The. Twenty Fusarium isolates from Douglas fir (Pseudotsuga menziesii var. glauca) seed and seedlings were evaluated for their effects on Douglas fir seed germination, post-emergence damping-off and seedling root disease.

The Fusarium isolates were classified as F. oxysporum, and the F. 'roseum' group - F. acuminatum [Gibberella acuminata], F. sambucinum [G. Cited by: Occurrence of Fusarium on Douglas-fir seed and containerized seedlings at the Plum Creek Nursery, Pablo, Montana. USDA Forest Series, Northern Region Report10 p.

USDA Forest Series, Northern Region Report10 by: Title: Epidemiology of Fusarium fruit and stem rot of greenhouse grown sweet pepper: Creator: Smudja, Mirej: Date Issued: Description: Spore monitoring, using Burkard Continuous Recording Air Samplers, in Lower Mainland commercial pepper crops during three different growing seasons strongly suggests that ascospores of Nectria haematococca are both the.

The members of the genus Fusarium are among the most important plant pathogens in the world. In recent years the genus has acquired additional importance as many Fusarium species have been shown to produce mycotoxins causing both animal and human diseases.

One of the problems encountered by workers interested in Fusarium species, particularly in the toxigenic Author: Paul E. Nelson. References Bloomberg, W. A model of damping-off and root rot of Douglas-fir seedlings caused by Fusarium athology Campbell, C.

L File Size: KB. A study was initiated in to assess Cylindrocarpon and Fusarium root infection in planted and naturally regenerating (natural) Douglas-fir seedlings from seven affected plantations. Percentages of seedlings harboring Cylindrocarpon percent root colonization were significantly greater for planted seedlings compared with natural Cited by:   James RL, Dumroese RK, Wenny DL, Myers JF, Gilligan CJ () Epidemiology of Fusarium on containerized Douglas-fir seedlings.

(1) Seed and seedling infection, symptom production, and disease progression. Missoula, Montana: USDA For. Cited by: Dumroese, R.K., James, R.L.

and Wenny, D.L. Trial of a granular etridiazole and thiophanate-methyl fungicide to control Fusarium root disease of container-grown Douglas-fir seedlings.

New Forests 4: – Google ScholarCited by:. Suppression of cranberry girdler damage in beds of Douglas-fir seedlings, Coeur d' Alene Nursery, Idaho Panhandle National Forest— Appears in 4 books from Page - Theodorou, C.

& Bowen, GD ().Forest Pest Management Report December EPIDEMIOLOGY OF FUSARIUM ON CONTAINERIZED DOUGLAS-FIR SEEDLINGS.

1. SEED AND SEEDLING INFECTION, SYMPTOM PRODUCTION, AND DISEASE PROGRESSION by R. L. James, Plant Pathologist 1/ R. K. Dumroese, Research Associate 21 D. L. Wenny, Associate Professor 21 J. F. Myers. PATHOGENICITY OF FUSARIUM PROLIFERATUM IN CONTAINER-GROWN DOUGLAS-FIR SEEDLINGS' R.L. Jamess, R.K.

Dumroese- and D.L Wenny3 ABSTRACT Fusarium proliferatum (teleomorph: Gibberella fujikuro/) is one of the most commonly-isolated fungi from roots of both diseased and healthy container.