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| DOI: | 10.1614/WT-05-017R1.1 |
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| Web URL(s): | http://www.bioone.org/doi/full/10.1614/WT-03-268R3.1
Last checked: 03/02/2012
Access conditions: Item is within a limited access website
http://www.bioone.org/doi/pdf/10.1614/WT-03-268R3.1
Last checked: 03/02/2012
Requires: PDF Reader
Access conditions: Item is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Ni, Hanwen;
Wehtje, Glenn;
Walker, Robert H.;
Belcher, Jason L.;
Blythe, Eugene K. |
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| Author Affiliation: | Ni: Former Visiting Scientist, Beijing Agricultural University; Wehtje: Professor; Walker: Professor; Belcher: Research Associate III, Agronomy and Soils Department; Blythe: Graduate Research Assistant, Horticulture Department, Auburn University, Auburn University, AL |
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| Title: | Turf tolerance and Virginia buttonweed (Diodia virginiana) control with fluroxypyr as influenced by the synergist diflufenzopyr |
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| Source: | Weed Technology. Vol. 20, No. 2, April-June 2006, p. 511-519. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America. |
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| # of Pages: | 9 |
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| Related Web URL: | http://www.bioone.org/doi/abs/10.1614/WT-03-268R3.1
Last checked: 03/08/2012
Notes: Abstract only |
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| Keywords: | TIC Keywords: Cultivar evaluation; Cynodon dactylon x Cynodon transvaalensis; Diflufenzopyr; Diodia virginiana; Eremochloa ophiuroides; Fluroxypyr; Herbicide injury; Herbicide trials; Poa pratensis X Poa arachnifera; Stenotaphrum secundatum; Weed control; Zoysia japonica X Zoysia tenuifolia
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| Cultivar Names: | Thermal Blue; Common; Tifway; Emerald; Raleigh |
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| Abstract/Contents: | "Virginia buttonweed control in warm-season turfgrass species requires high application rates and/or repeated applications of herbicides (or both) with an auxin-type mode of action. These treatments often lead to unacceptable turfgrass injury. Diflufenzopyr functions as a synergist with auxin-type herbicides, and it has been suggested that it may do the same when combined with pyridine herbicides such as fluroxypyr. The objective of this field and laboratory research was to determine whether Virginia buttonweed control could be improved with admixtures of fluroxypyr and diflufenzopyr without unacceptable turf injury. Treatments consisted of fluroxypyr applied alone at 140 and 280 g ae/ha, diflufenzopyr alone at 70 and 140 g/ha, and all possible two-way admixtures. Treatments were applied to a hybrid bluegrass Thermal blue infested with Virginia buttonweed. Sod of centipedegrass common, hybrid bermudagrass Tifway, hybrid zoysiagrass Emerald, and St. Augustinegrass Raleigh, which had been previously established in pots, were treated simultaneously and returned to a greenhouse. Fluroxypyr plus diflufenzopyr at 280 and 70 g/ha, respectively, controlled Virginia buttonweed nearly 40% more than fluroxypyr alone. Turfgrass injury was species-dependent, and was generally either equivalent to or less than that obtained with fluroxypyr alone. Radiotracer studies established that, depending upon the turfgrass species, fluroxypyr absorption was either not influenced or reduced by the addition of diflufenzopyr. Neither root nor foliar absorption of fluroxypyr by Virginia buttonweed was influenced by diflufenzopyr. Translocation of foliar-absorbed fluroxypyr was reduced, but translocation of root-absorbed fluroxypyr was increased by diflufenzopyr. The diflufenzopyr-induced synergism may indicate that a significant portion of the applied fluroxypyr was absorbed by roots or by other subsoil tissues, or both." |
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| Language: | English |
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| References: | 14 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ni, H., G. Wehtje, R. H. Walker, J. L. Belcher, and E. K. Blythe. 2006. Turf tolerance and Virginia buttonweed (Diodia virginiana) control with fluroxypyr as influenced by the synergist diflufenzopyr. Weed Technol. 20(2):p. 511-519. |
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| DOI: 10.1614/WT-05-017R1.1 |
| Web URL(s):
http://www.bioone.org/doi/full/10.1614/WT-03-268R3.1
Last checked: 03/02/2012
Access conditions: Item is within a limited access website
http://www.bioone.org/doi/pdf/10.1614/WT-03-268R3.1
Last checked: 03/02/2012
Requires: PDF Reader
Access conditions: Item is within a limited access website |
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MSU catalog number: b2174615a |
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