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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=185
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Wehtje, G. R.;
Williams, W. A.;
Walker, R. H. |
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| Author Affiliation: | Alabama Agric. Exp. Stn., Auburn University, AL |
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| Title: | Root versus foliar sensitivity of goosegrass to AEF130360 |
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| Section: | Weed management in turf, pasture, and rangeland
Other records with the "Weed management in turf, pasture, and rangeland" Section
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| Meeting Info.: | Houston, Texas: January 27-29, 2003 |
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| Source: | Proceedings: Southern Weed Science Society: 56th Annual Meeting. Vol. 56, 2003, p. 99. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Application methods; Comparisons; Foliar feeding; Goosegrass control; Herbicide efficacy; Herbicide evaluation; Herbicide resistance; Root analysis
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| Trade Names: | AEF130360 |
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| Abstract/Contents: | "Greenhouse experiments were conducted to determine the relative importance of foliar versus root absorption with respect to the poste mergence activity of AEF130360 for controlling goosegrass [Eleusine indica (ELEIN)]. In addition, rimsulfuron and CGA362622 were also included since these herbicides may have similar potential in warm-season turf. And annual bluegrass [Poa annua (POANN)] was included as a second target species. Experiment consisted of a factorial arrangement of the three previously-mentioned herbicides, three herbicide rates, two growth media, and three application types. Herbicides rates were 0.016, 0.032 and 0.064 lb ai/A. Growth media was either a field soil (Kalmia sandy loam; pH = 5.7) or a sand/peat mixture (90/10 v/v). Application types included soil+foliar, soil-only and foliar- only. 'Soil+foliar' was a typical application where the spray fall indiscriminately on either foliage or soil surface. 'Foliar-only' was identical however soil surface was temporarily covered with charcoal to prevent soil entry. These two application were applied with an enclosed-booth greenhouse sprayer at 30 GPA. 'Soil-only' was achieved by applying the appropriate volume of spray solution directly to the soil surface. A methylated seed oil adjuvant was included at 1% v/v. Treatments were applied when seed heads on both species were first evident. POANN control was visually rated at 3 WAT. ELEIN was clipped near soil surface at 3 WAT and subsequent regrowth rated at 7 WAT. Experiment was repeated over time, and the pooled data subjected to an ANOVA that reflected factorial treatment arrangement. Herbicide rate was either insignificant (POANN), or significant but not consistently increased with higher rates (ELEIN). With rimsulfuron, least activity against both species was obtained with foliar-only indicating that its activity was predominately, but not exclusively, root- absorption based. With CGA362622, soil-only and foliar-only were equivalent, but less effective than soil+foliar. This was more apparent in POANN than in ELEI N. This indicates that CGA362622 activity was probably the result of nearly equal root-based and foliar-based absorption. With AEF130360, soil-only was the least effective for both species. For all herbicide-weed combinations except rimsulfuron-POANN and AEF130360-ELEIN , greater control was obtained in soil than in sand/peat. In summary, in contrast to the other two sulfonylurea herbicides, AEF130360 was predominately foliar active." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Invasive weeds: Real or imagined threat?"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wehtje, G. R., W. A. Williams, and R. H. Walker. 2003. Root versus foliar sensitivity of goosegrass to AEF130360. South. Weed Sci. Soc. Proc. 56:p. 99. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=185
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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