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| DOI: | 10.21273/HORTTECH.15.2.0318 |
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| Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/15/2/article-p318.xml?rskey=9BlgIQ
Last checked: 11/21/2019
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Koschnick, Tyler J.;
Haller, William T.;
MacDonald, Greg E. |
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| Author Affiliation: | Koschnick: Graduate Research Assistant; Haller: Professor, University of Florida/Institute of Food and Agricultural Sciences, Center for Aquatic and Invasive Plants; MacDonald: Assistant Professor, Agronomy Department, University of Florida, Ganesville, Florida |
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| Title: | Turf and ornamental plant tolerances to endothall in irrigation water I. Ornamental species |
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| Section: | Research reports
Other records with the "Research reports" Section
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| Source: | HortTechnology. Vol. 15, No. 2, April-June 2005, p. 318-323. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Herbicide evaluation; Aquatic weed control; Aquatic herbicides; Dry weight; Endothall; Herbicide application; Herbicide resistance; Irrigation; Weed control
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| Trade Names: | Aquathol |
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| Abstract/Contents: | "Restrictions on the endothall aquatic herbicide label include the use of endothall treated water for irrigating plants from 7 to 25 days after application. This interval was established to allow sufficient time for endothall to dissipate to levels that were considered safe for irrigation to prevent phytotoxicity to desirable plants. The affects of endothall on begonias (Begonia semperflorens 'Vodka Cocktail'), pansies (Viola x wittrockiana 'Atlas Purple'), petunias (Petunia hybrida), and impatiens (Impatiens wallerana 'Lipstick') were determined by comparing aboverground dry weight to control plants after exposure to endothall in irrigation water. The objective was to determine if endothall concentrations used for qaquatic weed control were phytotoxic to ornamental plants. Plants were irrigated every other day for 6 days in Expt. 1 with constant concentrations of endothall, and for 8 days in Expt. 2 with decreasing concentrations of endothall. Concentrations causing a 10% reduction in dry weight (effective concentration :EC10) compared to control plants showed there was a wide range of tolerance among plants exposed to endothall in irrigation water in the two experiments. Begonias, pansies, and impatiens had the lowest tolerance to two formulations of endothall in irrigation water with EC10 values ranging from 2 to 4 mg路L-1 (ppm) a.i. (a.i. based on acid equivalence) in both experiments. Petunias, which were more tolerant to endothall, had EC10 values of 15 and 34 mg路L-1 a.i. in Expt. 1 and 11 and 20 mg路L-1 a.i. in Expt. 2 for amine and dipotassium formulations of endothall, respectively. Endothall did abcise flowers on impatiens after irrigation with endothall at concentration of 10 mg路L-1 a.i. and higher. Effects of endothall on begonias at concentrations close to EC10 values (2 to 3 mg路L-1 a.i.) were limited to growth inhibition with no apparent desiccation or necrosis of plant tissue." |
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| Language: | English |
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| References: | 11 |
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| See Also: | See also Part 2 "Turf and ornamental plant tolerance to endothall in irrigation water II. Turf species" HortTechnology, 15(2) April-June 2005, p. 324-329 R=152679 R=152679 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Koschnick, T. J., W. T. Haller, and G. E. MacDonald. 2005. Turf and ornamental plant tolerances to endothall in irrigation water I. Ornamental species. HortTechnology. 15(2):p. 318-323. |
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| DOI: 10.21273/HORTTECH.15.2.0318 |
| Web URL(s):
https://journals.ashs.org/horttech/view/journals/horttech/15/2/article-p318.xml?rskey=9BlgIQ
Last checked: 11/21/2019
Requires: PDF Reader |
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MSU catalog number: b2917674a |
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