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| DOI: | 10.21273/HORTTECH.20.4.772 |
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| Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/20/4/article-p772.xml
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| Publication Type:
| Refereed |
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| Author(s): | Baldos, Orville C.;
DeFrank, Joseph;
Sakamoto, Glenn |
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| Author Affiliation: | Baldos and DeFrank: Department of Tropical Plant and Soil Sciences, University of Hawaii at Manoa, Honolulu, HI; Sakamoto: Natural Resources Conservation Service Hoolehua Plant Materials Center, United States Department of Agriculture, Hoolehua, HI |
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| Title: | Tolerance of transplanted seashore dropseed to pre- and postemergence herbicides |
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| Source: | HortTechnology. Vol. 20, No. 4, August 2010, p. 772-777. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Herbicide evaluation; Herbicide phytotoxicity; Herbicide resistance; Postemergence herbicides; Preemergence herbicides; Sporobolus virginicus; Weed control
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| Abstract/Contents: | "Field experiments were conducted to assess the tolerance of seashore dropseed (Sporobolus virginicus) to pre- and postemergence herbicides labeled for roadside right-of-way use. Dithiopyr (0.25 and 0.50 lb/acre a.i.), trifluralin + isoxaben (2.0 + 0.5 and 4.0 + 1.0 lb/acre a.i.), oxyfluorfen (0.25 and 0.50 lb/acre a.i.), oxadiazon (2.0 and 4.0 lb/acre a.i.), and granular table salt (99% sodium chloride, 1% sodium silicoaluminate; 83% of particles 0.50.25 mm in diameter, 400 lb/acre a.i.) were applied at 2 and 84 days after transplanting (DAT). Preemergence weed control with crop response measures as visual foliar injury ratings and aboveground biomass accumulation were recorded 38 days after the second application of herbicides (DAH2). Crop response to postemergence herbicides aminopyralid (1.10 lb/acre a.i.), triclopyr (3.0 lb/acre a.i.), a prepackaged mix of carfentrazone + (4-chloro-2-methylphenoxy)acetic acid + mecoprop + dicamba (0.02 + 1.11 + 0.22 + 0.11 lb/acre a.i.), and sulfosulfuron (0.06 lb/acre a.i.) applied at 70 and 98 DAT included visual foliar injury ratings and aboveground biomass accumulation at 28 DAH2. Although all pre-emergence herbicides (except table salt) exhibited acceptable weed control ratings, only oxadiazon and oxy- fluorfen showed exceptional weed control and safety. The postemergence herbicide sulfosulfuron was the least injurious to seashore dropseed. The mixture of carfentrazone + (4-chloro-2-methylphenoxy)acetic acid + mecoprop + dicamba and triclopyr were the most injurious to seashore dropseed and should only be used as a directed spray treatment. An unintended overapplication of aminopyralid was phytotoxic, but it did not lead to complete plant death at 28 DAH2. These data identified oxadiazon, oxyfluorfen, and sulfosulfuron as safe and effective for establishing transplanted seashore dropseed plugs." |
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| Language: | English |
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| References: | 40 |
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| Note: | Summary appears as abstract
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Baldos, O. C., J. DeFrank, and G. Sakamoto. 2010. Tolerance of transplanted seashore dropseed to pre- and postemergence herbicides. HortTechnology. 20(4):p. 772-777. |
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| DOI: 10.21273/HORTTECH.20.4.772 |
| Web URL(s):
https://journals.ashs.org/horttech/view/journals/horttech/20/4/article-p772.xml
Last checked: 04/30/2020
Access conditions: Item is within a limited-access website
https://journals.ashs.org/horttech/downloadpdf/journals/horttech/20/4/article-p772.xml
Last checked: 04/30/2020
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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