Full TGIF Record # 71157
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Gardner, D. S.; Branham, B. E.
Author Affiliation:Gardner: Ohio State University; and Branham: University of Illinois
Title:Effect of turfgrass cover and irrigation on soil mobility and dissipation of mefanoxam and propiconazole
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 162.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Propiconazole; Metalaxyl-M; Agrostis stolonifera; Cover; Irrigation; Pesticide fate; Half-life
Trade Names:Mefanoxam
Abstract/Contents:"Mefanoxam and propiconazole were applied to 20-cm diam. sampling cylinders placed in either creeping bentgrass (Agrostis palustris Huds.) or bare soil. Mefanoxam (R)-2-[(2,6-dimethylphenyl)- methoxyacetylamino]-propionic acid methyl ester] was applied at 770 g ai/ha and propiconazole (1-[[2-(2,4-dichlorophenyl)-4-propyl-1,3-dioxolan-2-yl]met< >hyl]-1H-1,2,4-triazole) was applied at 1540 g ai/ha. Sampling cylinders were removed two hours after treatment and 4, 8, 16, 32, and 64 days after treatment (DAT) and the cores were sectioned by depth. Soil extracts were assayed by HPLC yielding a pesticide detection limit of 0.01 mg/kg. The half-life of mefanoxam was 5-6 days in turf and 7-8 days in bare soil. Most mefanoxam residues found in soil under turfgrass were in the 0-1 cm section at 0, 4, and 8 DAT. Mefanoxam was found in the 15-30 cm soil layer at 4, 8, 16, 32, and 64 DAT, regardless of surface organic matter or irrigation. The half-life of propiconazole was 12-15 days in turfgrass and 29 days in bare soil. Little vertical movement of propiconazole was observed. Turf cover tends to result in a decreased half-life for those pesticides that are immobile or moderately mobile. Turf cover has much less impact on the movement or persistence of more mobile pesticides such as mefanoxam."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gardner, D. S., and B. E. Branham. 2000. Effect of turfgrass cover and irrigation on soil mobility and dissipation of mefanoxam and propiconazole. Annu. Meet. Abstr. p. 162.
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