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| Publication Type:
| Refereed |
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| Author(s): | Starke, Robert J.;
Oliver, Lawrence R. |
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| Author Affiliation: | Starke: Department of Agronomy, University of Arkansas, Fayetteville, AR 72701 and Oliver: Corresponding author. Department of Agronomy, University of Arkansas, fayetteville , AR 72701 |
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| Title: | Interaction of glyphosphate with chlorimuron, fomesafen, imazethapyr, and sulfentrazone |
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| Source: | Weed Science. Vol. 46, No. 6, November/December 1998, p. 652-660. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America |
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| # of Pages: | 9 |
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| Keywords: | TIC Keywords: Glyphosate; Fomesafen; Imazethapyr; Sulfentrazone; Interactions; Echinochloa crusgalli; Ipomoea; Eleusine indica; Amaranthus palmeri; Synergism; Incompatibility
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| Abstract/Contents: | "Field experiments were conducted on eight weed species to determine if chlorimuron, fomesafen, imazethapyr, or sulfentrazone at two rates (labeled and one-half the labeled rate) were complementary tank mixtures with glyphosphate at 210 and 420 g ai ha⁻1. Laboratory experiments were conducted on barnyardgrass, pitted morningglory, Palmer amaranth, and velvetleaf using radiolabeled glyphosphate, chlorimuron, and imazethapyr to determine the absorptionadding anslocation pattern of these herbicides applied alone and in combination. In the field, glyphosphate plus chorimuron tank mixtures were generally additive. Adding chlorimuron did not decrease absorption or translocation of ¹4C-glyphosphate by barnyardgrass, pitted morningglory, or velveleaf. Adding glyphosphate increased absorption of ¹4 C-chlorimuron by Palmer amaranth and velvetleaf. All four fomesefan plus glyphosphate rate combinations were antagonistic to goosegrass, sicklepod, Palmer amaranth, and velvetleaf, and three of the four were antagonistic to barnyardgrass and entireleaf morningglory. Fomesefan decreased absorption and translocation of ¹4C-glyphosphate in barnyard-grass, pitted morningglory, and velvetleaf. Ninety percent of glyphosphate plus imazethapyr combinations were additive or synergistic, with all rate combinations synergistic for pitted morningglory. Adding glyphosphate to imazethapyr increased absorption of ¹4C-imazethapyr by Palmer amaranth and velvetleaf. Glyphosphate plus sulfentrazone tank mixtures were antagonistic at all rate combinations for barnyardgrass and Palmer amaranth and at three of the four combinations for goosegrass and entireleaf morningglory, indicating that these herbicides are not complementary in tank mixtures." |
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| Language: | English |
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| References: | 29 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Starke, R. J., and L. R. Oliver. 1998. Interaction of glyphosphate with chlorimuron, fomesafen, imazethapyr, and sulfentrazone. Weed Sci. 46(6):p. 652-660. |
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