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    • Journal of Range Management, Volume 46 (1993)
    • Journal of Range Management, Volume 46, Number 3 (May 1993)
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    Bluegrass billbug feeding response to perennial triticeae grasses

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    Author
    Nielson, D. C.
    Asay, K. H.
    Jones, T. A.
    Issue Date
    1993-05-01
    Keywords
    Sphenophorus parvulus
    host preferences
    screening
    Pascopyrum
    Pseudoroegneria
    crop damage
    pest resistance
    Elymus
    Leymus
    Psathyrostachys
    Elytrigia
    genome
    Agropyron
    genetic variation
    perennials
    mortality
    species differences
    Poaceae
    rangelands
    pasture plants
    grasses
    feeding preferences
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    Citation
    Nielson, D. C., Asay, K. H., & Jones, T. A. (1993). Bluegrass billbug feeding response to perennial triticeae grasses. Journal of Range Management, 46(3), 237-240.
    Publisher
    Society for Range Management
    Journal
    Journal of Range Management
    URI
    http://hdl.handle.net/10150/644516
    DOI
    10.2307/4002613
    Additional Links
    https://rangelands.org/
    Abstract
    In a 4-year field study, 25 perennial triticeae grasses, representing a wide range of genomes and genome combinations, were evaluated as potential hosts for the bluegrass billbug (Sphenophorus parvulus Gyllenhal [Coleoptera: Curculionidae]). Root-sample data suggested that Russian wildrye (Psathyrostachys juncea [Fischer] Nevski) was unsuitable for billbug reproduction. Numbers of immatures varied significantly among remaining entries. Rhizomatous entries were more tolerant of billbug injury than caespitose entries. Plant mortality rates were frequently 50% or higher for self-pollinated caespitose entries with the SH genome complement (Elymus spp.). Losses to billbugs among the remaining species, particularly those with the J, N, and P genomes, were insignificant. Billbugs did not discriminate between native and introduced grasses, as resistant and susceptible entries were identified in both groups. The results obtained here may aid in selecting triticeae grasses for reseeding in areas where billbugs have damaged stands in the past.
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2307/4002613
    Scopus Count
    Collections
    Journal of Range Management, Volume 46, Number 3 (May 1993)

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