Full TGIF Record # 19354
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/1990.pdf#page=96
    Last checked: 12/17/2015
    Notes: Item is within a single large file
Publication Type:
Content Type:Abstract or Summary only
Author(s):Neidlinger, Thomas J.; Mueller-Warrant, George
Author Affiliation:Research and Development Representative and Research Agronomist, Rohm and Haas Company, Clackamas, OR and USDA/ARS, Corvallis, OR
Title:Volunteer seedling grass control and tolerance of grass seed varieties to oxyfluorfen
Meeting Info.:Papers presented at the annual meeting March 13, 14, 15, 1990; The Nugget Hotel, Sparks, Nevada.
Source:Proceedings of the Western Society of Weed Science. Vol. 43, 1990, p. 88.
Publishing Information:Logan, UT: Plant Science Dept., Utah State University.
Keywords:TIC Keywords: Seed production; Seed industry; Flaming; Seed purity; Seed quality; Oxyfluorfen
Abstract/Contents:"With increased restrictions on open field burning and the loss of previously registered triazine herbicides, volunteer seedling grasses in grass seed fields have become a serious weed problem where seed certification is desired. The objectives of these studies were to evaluate the degree of activity of oxyfluorfen for control of volunteer grasses established grass seed fields and determine crop tolerance. Grass species included in these studies were: perennial ryegrass, tall fescue, orchardgrass, Kentucky bluegrass, creeping bentgrass, and fine-leaved fescue. Two field tests were established in each of the above grass species, one to evaluate weed control and the other to determine crop tolerance by obtaining seed yields. Rates of oxyfluorfen ranged from 0.0625 to 0.50 lb/A. Oxyfluorfen plus diuron was included in all tests except the fine fescues. The diuron rate was 1.6 lb/A. Treatments were applied in the fall when the crops were semi-dormant and volunteer seedlings were in the one to three leaf stage of growth. Visual weed control and crop injury ratings were taken throughout the winter and seed yields were obtained at normal harvest periods the following summer. Oxyfluorfen alone gave 81 and 86% control of seedling tall fescue and orchardgrass, respectively, at 0.125 lb/A, and 91% control of each at 0.25 lb/A. The tank mixture of oxyfluorfen plus diuron at 0.125 plus 1.6 lb/A increased control to 86 and 94%, respectively. Seedling perennial ryegrass appeared slightly less susceptible to oxyflourfen than did tall fescue or orchardgrass. Control was 64 and 73% at 0.125 and 0.25 lb/A, respectively. Addition of diuron to oxyfluorfen increased control of volunteer perennial ryegrass to 81%. Initial crop injury, expressed as leaf chlorosis, ranged from 18% (ryegrass) to 41% (fine fescue), from 0.125 lb/A oxfluorfen. Addition of diuron did not increase injury over oxyfluorfen alone, except in creeping bentgrass. In all grasses except fine fescue full crop recovery was confirmed by yield data which indicated no significant yield differences between any oxyfluorfen or oxyfluorfen/diuron treatment and the untreated check. In fine fescue oxyfluorfen at 0.25 and 0.50 lb/A resulted in season-long crop injury but no treatment caused yields significantly different from the untreated check."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Neidlinger, T. J., and G. Mueller-Warrant. 1990. Volunteer seedling grass control and tolerance of grass seed varieties to oxyfluorfen. Proc. West. Soc. Weed Sci. 43:p. 88.
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    Last checked: 12/17/2015
    Notes: Item is within a single large file
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MSU catalog number: SB 610 .W43 v.43
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