Full TGIF Record # 247923
Item 1 of 1
Publication Type:
i
Report
Author(s):Shafer, Neal E.
Author Affiliation:Dept. of Agron., Coll. of Agri., Lincoln, Nebr.
Title:Controlling crabgrass selectively in bluegrass lawns
Section:Use of herbicides for control of undesirable seedling grasses
Other records with the "Use of herbicides for control of undesirable seedling grasses" Section
Meeting Info.:Sioux Falls, South Dakota: December 6-8, 1949
Source:1949 Research Report: Sixth Annual North Central Weed Control Conference. 1949, p. 207-208.
# of Pages:2
Publishing Information:[Urbana, Illinois: Department of Agronomy, University of Illinois]
Abstract/Contents:"Crabrass (Digitaria sanguinalis) L. Scop. infesting a bluegrass lawn was treated in plots 4 feet x 10 feet on June 25. One treated area contained only crabgrass seedlings, another treated area contained larger crabgrass plants with runners 4 to 6 inches long. Spray materials used included L-2687, S-1980, S-1998, potassium cyanate, phenyl mercuric acetate, and ordinary kerosene. L-2687 caused discoloration and reduced vigor but did not reduce the stand of crabgrass at either 80 gallons per acre or 120 gallons per acre. Potassium cyanate (1% and 2% in 10 gallons per 1000 square feet) gave an estimated 90 per cent kill of crabgrass but also eliminated much of the bluegrass. Phenyl mercuric acetate gave generally poor results. Kerosene at 80 gallons per acre gave 70 to 80 per cent kills of the seedling crabgrass, 120 gallons per acre gave 90 to 95 per cent kills without any visible injury or discoloration of the bluegrass. S-1980 (1% and 2% in 16 gallons per 1000 square feet) gave 60 and 75 per cent kills respectively without injury to the bluegrass. S-1998 (1% and 2% in 16 gallons per 1000 square feet) gave 95 per cent kill of the crabgrass with no injury to bluegrass. Much poorer results were obtained from all treatments which were applied to the larger crabgrass plants. A second crop of seedlings was sprayed August 5 with approximately the same results. At the end of the growing season plots treated with S-1998 and kerosense were practically free of crabgrass and had a dense stand of bluegrass."
Language:English
References:0
Note:This item is an abstract only!
"Contribution of the Dept. of Agronomy, Nebraska Agri. Exp. Station, Lincoln, Nebraska"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Shafer, N. E. 1949. Controlling crabgrass selectively in bluegrass lawns. Res. Rep. North Cent. Weed Control Conf. p. 207-208.
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