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| Web URL(s): | https://listings.lib.msu.edu/iowat/1991.pdf#page=35
Last checked: 01/10/2017
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Roe, R. G.;
Christians, N. E. |
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| Author Affiliation: | Graduate Student and Research Assistant, Department of Horticulture; Professor, Turfgrass Science, Research and Teaching, Department of Horticulture, University of Iowa |
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| Title: | Broadleaf weed control study |
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| Source: | 1991 Iowa Turfgrass Research Report. July 1991, p. 30-31. |
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| Publishing Information: | Ames, Iowa: Iowa State University |
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| Keywords: | TIC Keywords: Postemergence herbicides; Weed control; Broadleaf weed control
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| Abstract/Contents: | "The objective of this study was to investigate the efficacy of ten herbicides currently being evaluated as postemergence controls of broadleaf weeds in turf areas. The study was conducted on a site in southeast Ames at the intersection of Highway 30 and Interstate 35. Individual plots measured 5 ft by 10 ft. They were arranged in a randomized, complete-block design with three replications. No irrigation was available at the site. However, due to very wet conditions throughout the duration of the study no drought stress was present. The grass on the area was a common Kentucky bluegrass of unknown age. This site had a good population of the following broadleaf weeds: dandelion (Taraxacum officianale), white clover (Trifolium repens), and spurge (Euphorbia supina). Treatments were applied on August 2, 1990. All treatments were applied with a backpack carbon dioxide sprayer equipped with 8006 nozzles. The spray pressure was 20-25 psi. Treatments were applied with the equivalent of 3 gal water/1000 ft2. A light rain occurred four hours after treatment. No phytotoxicity was observed on the Kentucky bluegrass. Weed counts were made at 30 days. Table 13 lists the average number of weeds in a 5 ft by 10 ft plot. Turflon D and Super Trimec were the only products to provide satisfactory control of dandelions, clove, and spurge. Confront at the 2 pt ai/a rate showed a numerical reduction of dandelion. Both Turflon D and Super Trimec were ester formulations that would be expected to penetrate the leaf surface quickly and provide better control in the very wet conditions present during the study period. The amine formulations, while not performing in this test, provide a greater degree of safety for surrounding landscape plants." |
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| Language: | English |
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| References: | 0 |
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| Note: | Table |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Roe, R. G., and N. E. Christians. 1991. Broadleaf weed control study. Iowa Turfgrass Res. Rep. p. 30-31. |
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| Web URL(s):
https://listings.lib.msu.edu/iowat/1991.pdf#page=35
Last checked: 01/10/2017
Requires: PDF Reader |
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MSU catalog number: SB 433 .A1 I55 |
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