Full TGIF Record # 228378
Item 1 of 1
Publication Type:
i
Report
Author(s):Boyd, J. W.
Author Affiliation:University of Arkansas Cooperative Extension Services, Little Rock, AR
Title:MSMA plus iron for turf
Section:Weed control in turf, pasture, and rangeland
Other records with the "Weed control in turf, pasture, and rangeland" Section
Meeting Info.:Nashville, Tennessee: January 16-18, 1989
Source:Proceedings: Southern Weed Science Society. Vol. 42, 1989, p. 141.
Publishing Information:Champaign, Illinois: Southern Weed Science Society
# of Pages:1
Abstract/Contents:"During July, August and September of 1988 an 8% chelated plant nutrient (Agri-Plex Fe) was evaluated in 6 experiments spread over 4 locations (lawns, golf course fairways, and sod farms) for its ability to lessen turfgrass injury and speed recovery from application of MSMA (2, 4 and 6 lb ai/A) and MSMA + metribuzin (4 and 6 + 0.25 lb ai/A) to common and 'Tifgreen' bermudagrass. 'Meyer' zoysiagrass received only the 2 and 4 lb ai/A rates of MSMA with and without iron. In addition, chelated iron plus asulam (2 lb ai/A) and iron plus fenoxaprop (0.18 lb ai/A) was applied to St. Augustinegrass. The chelated iron rate for all treatments was 0.34 gal/A. Another formation (Lawn-Plex) is recommended for this use but is not available at this time. Agri-Plex Fe contains 8% iron. Plots were 8 feet by 16 feet, arranged in a randomized block design with 3 replications. Herbicides were applied with a CO powered backpack sprayer using 110-02 flat fan nozzles, 50 psi and 20 gpa carrier volume. Visual ratings were done approximately 14, 21, and 28 DAT (days after treatment). Injury was minimal from MSMA and MSMA + metribuzin on common and 'Tifgreen' bermudagrass with and without the addition of iron. At the two common bermudagrass sites there seemed to be a slight (5 to 10%) safening effect from the iron. The 'Tifgreen' site showed no effect due to addition of iron, but at 22 DAT, metribuzin treatments with or without iron were 30% greener than check plots and herbicide treatments without metribuzin. Chelated iron significantly reduced MSMA injury to zoysiagrass. Injury was greater with the 4 lb ai/A rate of MSMA than with the 2 lb ai/A rate but the relative effects of the iron were the same. Adding iron to asulam or fenoxaprop before treating St. Augustinegrass did not reduce the amount of discoloration or speed the recovery of the grass from injury. Experiments will be repeated next year with the Lawn-Plex formulation and the addition of nitrogen to the tank mix."
Language:English
References:0
Note:"Finding a common ground"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Boyd, J. W. 1989. MSMA plus iron for turf. South. Weed Sci. Soc. Proc. 42:p. 141.
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