Full TGIF Record # 240842
Item 1 of 1
Publication Type:
i
Report
Author(s):Hogard, T. W.; Hemphill, D. D.
Author Affiliation:Department of Horticulture, Missouri Agricultural Experiment Station
Title:Post-emergence control of crabgrass in lawns
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. 130.
# of Pages:1
Publishing Information:[Lincoln, Nebraska]: [North Central Weed Science Society]
Abstract/Contents:"Following chemicals were applied to randomize, replicated plots of Kentucky Bluegrass for the control of crabgrass (Digitaria sanguinalis) in various stages of growth: 2 to 3 leaf stage - Standard Crabgrass Spray, 80 gal per acre, 2 applications 10 days apart; Scutl (.74 per cent PMAS), 1.25 lbs per 400 sq ft, 2 applications 7 days apart and 4 applications 7 days apart; disodium methyl arsonate 3.7 oz per 1000 sq ft, 2 applications 7 days apart and 3 applications 7 days apart and Alanap 1F, 18 lbs per 1000 sq ft, one treatment. Using point Quadrat method of sampling final readings were taken 10 weeks after first treatment. Per cent of turf foliage consisting of crabgrass in various plots was as follows: Standard Crabgrass Spray, 73%; Scutl, 2 treatments - 73%; 4 treatments - 56%; disodium methyl arsonate, 2 treatments - 15%; 3 treatments - 9.5%; Alanap 1F - 78%; Control - 77%. Disodium methyl arsonate did not control stink grass (Eragrostis cilianensis) and plots became infested with it. 1/2 mature crabgrass - (10 weeks after germination) -- Chemicals used: Disodium methyl arsonate, 3.7 oz per 1000 sq ft, one treatment; Scutl, 2.5 lbs per 400 sq ft, 2 treatments 10 days apart; PC dust #1 15 lbs/1000 sq ft, one treatment; PC dust #3, 15 lbs/1000 sq ft, one treatment; disodium methyl arsonate, 3.7 oz per 1000 sq ft, 2 treatments 10 days apart; KOCN, 5.8 oz per 1000 sq ft, one treatment. Readings taken 10 weeks after first treatment indicated the following per cent control of crabgrass: Disodium methyl arsonate, one treatment - 62%, 2 treatments - 100%; Scutl, PC dusts #1 and #3, and KOCN gave no control. Disodium methyl arsonate and the various potassium cyanate treatments caused temporary discoloration of the bluegrass."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hogard, T. W., and D. D. Hemphill. 1955. Post-emergence control of crabgrass in lawns. Proc. North Cent. Weed Sci. Soc. p. 130.
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