Full TGIF Record # 240869
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Publication Type:
Author(s):Hart, R. D.; Rogers, B. J.; Lee, O. C.
Author Affiliation:Department of Botany and Plant Pathology, Purdue University, Agricultural Experiment Station
Title:Crabgrass control in bluegrass turf with Chlordane
Section:Control of weeds in horticultural crops: Turf
Other records with the "Control of weeds in horticultural crops: Turf" Section
Meeting Info.:Omaha, Nebraska: December 6-8, 1955
Source:Twelfth Annual Research Report: North Central Weed Control Conference. 1955, p. 131-132.
# of Pages:2
Publishing Information:[Lincoln, Nebraska]: [North Central Weed Science Society]
Abstract/Contents:"Three formulations of Chlordane - 75% emulsifiable, 25% granular, and 5% dust - were applied to two replications on a golf course fairway at rates of 20, 40, 60, 80 and 100 lbs/A of actual Chlordane; two formulations, 75% emulsifiable, and 5% dust were applied to four replications on rough (area just off the fairway) at rates of 20, 10 and 80 lbs/A. The fairway area was mowed regularly to 1 ½ inches and consisted chiefly of Kentucky bluegrass (Poa pratensis) and crabgrass (Digitaria sanguinalis); the rough was mowed to 4 inches and consisted of at least 50% Kentucky bluegrass, with red fescue (Festuca rubra) and crabgrass (Digitaria ischaemum) making up the largest percentage of the remaining grass cover. The emulsifiable formulation was applied as a spray in 120 gals/A; the two other formulations were applied dry. Treatments were made with the emulsion on April 2 (pre-emergence), April 21 (emergence), and June 8 (mid-vegetative); granular on April 23, and June 8; and dust on May 2, and June 8. Crabgrass emergence began on April 20. No injury to the established turf was noted in any of the treatments. Visual estimates of the control of crabgrass were made on August 1. The emulsion applied to the rough at 80 lbs reduced the crabgrass stand by 80, 80 and 74%, respectively, for the three dates of treatment. On the fairway the emulsion at 60, 80 and 100 lbs reduced the stand by 65, 85 and 85%, respectively, when applied April 2, and 50, 80 and 90% when applied on June 8. The granular material applied on April 23, at 80 and 100 lbs, gave 90% control. A 50% reduction in crabgrass was obtained with the dust on the fairway when applied at 100 lbs on May 2."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hart, R. D., B. J. Rogers, and O. C. Lee. 1955. Crabgrass control in bluegrass turf with Chlordane. Proc. North Cent. Weed Sci. Soc. p. 131-132.
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