Full TGIF Record # 247825
Item 1 of 1
Publication Type:
Author(s):Lantz, H. L.
Title:Crabgrass control trials in 1954
Other records with the "Abstracts" Section
Meeting Info.:Fargo, North Dakota: December 7-9, 1954
Source:Research Report: Eleventh Annual North Central Weed Control Conference. 1954, p. 100-101.
# of Pages:2
Publishing Information:[Urbana, Illinois: Department of Agronomy, University of Illinois]
Abstract/Contents:"The crabgrass trials were located on a fairway of a local golf course. Sixty-four plots, 6 x 55 feet were used to determine whether pre-emergence treatments would inhibit crabgrass germination and to compare these treatments with post emergence application of mercuric acetate and potassium cyanate. Treatments were made on June 4, 29, and July 29. Crabgrass counts were made on September 1 - 6. Precipitation was abundant in the spring months but ended on June 20. Above normal temperatures with no rainfall prevailed until August 14. Abundant rain after August 14 was followed by considerable germination of crabgrass seed. The herbicides used and evaluation of treatments are as follows: Check plots - 7-50 crabgrass plants per sq. ft. typical purple color and seeding profusely. SES - Sprayed June 4, 29 and July 29 at rates of 4, 6 and 8 lb/A. Plots which received three sprayings averaged .6 crabgrass plants per sq. ft., while those sprayed June 4 only had five crabgrass plants. Bluegrass was not injured by any treatment. DCU - Sprayed June 4 at rates of 9.9 and 14.8 lb/A. Complete control of crabgrass. Bluegrass showed inhibition in growth and dark blue-green color for sixty days, but had recovered by the end of the growing season. Sesin - Applied dry with five lbs. milorganite at rates of 8 and 12 lb/A. Natrin - Applied like Sesin at rates of 4, 6, and 18 lb/A. Neither Sesin nor Natrin gave satisfactory control of crabgrass. PMA - Applied as a spray on July 6, 14, 23 and August 2. Reduced crabgrass to four plants per sq. ft. in best plots, but several plots showed poor control. Potassium Cyanata [Cyanate] - Applied in Milorganite at rate of 16 lb/A on July 28 and August 5. Crabgrass reduced to 2-3 weak plants per sq. ft. Chlordane - Seventy-five percent emulsion plus 10 ml. 2, 4-D mine per plot applied on July 6, 14, and August 2. Results not uniform but some plots had 2-3 crabgrass plants per sq. ft. Control in others was not satisfactory. These results indicate that pre-emergence treatments with SES and DCU are effective in controlling crabgrass. PMA, three or more post emergence treatments and KOCN powder, at seed head formation, also were effective."
Note:This item is an abstract only!
"Contribution from the Iowa Experiment Station"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lantz, H. L. 1954. Crabgrass control trials in 1954. Res. Rep. North Cent. Weed Control Conf. p. 100-101.
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