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    • Rangeland Ecology & Management, Volume 63 (2010)
    • Rangeland Ecology & Management, Volume 63, Number 4 (July 2010)
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    Growth Regulator Herbicides Prevent Invasive Annual Grass Seed Production Under Field Conditions

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    Author
    Rinella, Matthew J.
    Masters, Robert A.
    Bellows, Susan E.
    Issue Date
    2010-07-01
    Keywords
    Aminopyralid
    Bromus japonicus Thunb.
    Japanese brome
    picloram
    seed banks
    seed development
    weed control
    weeds
    
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    Citation
    Rinella, M. J., Masters, R. A., & Bellows, S. E. (2010). Growth regulator herbicides prevent invasive annual grass seed production under field conditions. Rangeland Ecology & Management, 63(4), 487-490.
    Publisher
    Society for Range Management
    Journal
    Rangeland Ecology & Management
    URI
    http://hdl.handle.net/10150/642810
    DOI
    10.2111/REM-D-09-00141.1
    Additional Links
    https://rangelands.org/
    Abstract
    Growth regulator herbicides, such as 2,4-D, dicamba, picloram, and aminopyralid, are commonly used to control broadleaf weeds in rangelands, noncroplands, and cereal crops. If applied to cereals at late growth stages, while the grasses are developing reproductive parts, the herbicides often reduce cereal seed production. We are researching methods for using this injury response to control invasive annual grasses in rangelands by depleting their short-lived seed banks. In a previous greenhouse study, we found picloram and dicamba reduced seed production of the invasive annual grass Japanese brome (Bromus japonicus Thunb.) by nearly 100%. However, this promising greenhouse finding needs to be corroborated in the field before growth regulators can be confidently recommended for invasive annual grass control. This research note describes a study conducted in eastern Montana suggesting growth regulators may provide excellent control of invasive annual grasses. Specifically, we found typical use rates of aminopyralid and picloram reduced Japanese brome seed production by more than 95% (based on sample means) when applied at three different plant growth stages. This promising result contributes to the accumulating body of evidence suggesting growth regulators may control invasive annual grasses. 
    Type
    text
    Article
    Language
    en
    ISSN
    0022-409X
    ae974a485f413a2113503eed53cd6c53
    10.2111/REM-D-09-00141.1
    Scopus Count
    Collections
    Rangeland Ecology & Management, Volume 63, Number 4 (July 2010)

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