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Web URL(s): | http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/1986.pdf#page=224 Last checked: 05/04/2017 Requires: PDF Reader Notes: Item is within a single large file |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | West, L. D.;
Mitsui, B.;
Tillett, T. C. |
Author Affiliation: | Cal Poly, San Louis Obispo, CA. |
Title: | The Effect of Spray Volume on the Postemergence Activity of Oxyfluorfen and Glyphosate Combinations. |
Meeting Info.: | Meeting Held: March 18-20, San Diego, CA. |
Source: | Proceedings of the Western Society of Weed Science. Vol. 39, March 1986, p. 219. |
Publishing Information: | Logan, UT: Plant Science Dept., Utah State University. |
Keywords: | TIC Keywords: Spray volumes; Postemergence herbicides; Oxyfluorfen; Glyphosate
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Abstract/Contents: | "The use of low volume spray equipment in orchards has several advantages over conventional equipment. These include the use of smaller equipment which results in reduced soil compaction, the ability to spray when conventional equipment could not, and the reduced water volumes required for application. Glyphosate [N-(phosphonomethyl)glycine] is effective when applied postemergence in low carrier volumes. However, the activity of oxyfluorfen [2-chloro-1-(ethoxy-4-nitrophenoxy)-4-trifluoromethyl) benzene] is dependent upon spray volume to provide adequate spray coverage for contact activity, particularly with large weeds or dense weed canopies. Volume studies involving oxyfluorfen, glyphisate and the tankmix combinations were initiated in 1984 and 1985. Oxyfluorfen (0.56 kg ai/ha), glyphosate (1.12 kg ai/ha), and the tankmix combination of oxyfluorfen with glyphosate (0.56 + 1.12 kg ai/ha) were applied at four different spray volumes (23, 94, 374 and 935 1/ha). The lowest spray volume treatments were applied with a controlled droplet applicator ('Herbi'). All other treatments were applied with a CO2 backpack sprayer equipped with flat fan nozzles. Plot size was 9.3 x 22 meters and replicated three or four times. Oxyfluorfen, alone or tankmixed with glyphosate, provided better postemergence weed control as spray volume increased from 23 to 935 1/ha. The influence of spray volume on weed control varied by weed species; spray volume was not as critical on oxyfluorfen sensitive weeds or on seedling weeds. However, the trend favoring higher gallonage was still observed. Glyphosate, applied alone, was less sensitive to spray volume than oxyfluorfen." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): West, L. D., B. Mitsui, and T. C. Tillett. 1986. The Effect of Spray Volume on the Postemergence Activity of Oxyfluorfen and Glyphosate Combinations.. Proc. West. Soc. Weed Sci. 39:p. 219. |
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| Web URL(s): http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/1986.pdf#page=224 Last checked: 05/04/2017 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: SB 610 .W43 v.39 |
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