Full TGIF Record # 319938
Item 1 of 1
Web URL(s):http://www.wsweedscience.org/wp-content/uploads/2021-Proceedings-WSWS-Corrected.pdf#page=29
    Last checked: 06/30/2022
    Requires: PDF Reader
    Notes: Item is within a single large file
Publication Type:
i
Report
Content Type:Abstract or Summary Only
Author(s):Spring, John F.; Affeldt, Richard P.
Author Affiliation:Spring: Central Oregon Agricultural Research & Extension Center, Oregon State University, Madras, OR; Affeldt: Central Oregon Seed Inc., Madras OR
Title:Sulfosulfuron for control of roughstalk bluegrass in Kentucky bluegrass seed crops
Section:Poster session
Other records with the "Poster session" Section

WSWS Project 3. Weeds of agronomic crops
Other records with the "WSWS Project 3. Weeds of agronomic crops" Section
Meeting Info.:March 1-4, 2021
Source:Western Society of Weed Science Annual Meeting 2021. Vol. 74, March 2021, p. 17.
Publishing Information:Westminster, Colorado: Western Society of Weed Science
# of Pages:1
Abstract/Contents:"Primisulfuron has been critical for control of the important seed contaminant roughstalk bluegrass in Kentucky bluegrass grown for seed but is not currently available. Over the 2020 crop year, sulfosulfuron was evaluated for this use in small plot-field trials (randomized complete block design, 4 replicates, individual plot size 3 x 9 m) at 4 locations in new seedlings of irrigated Kentucky bluegrass in central Oregon. Sulfosulfuron was applied in the fall only (13, 20, 40 g ai ha-1), spring only (13, 20, 40 g ai ha-1), and fall + spring split applications (13 + 13, 20 + 20, 13 + 20, 20 + 13 g ai ha-1), compared to the industry standard use of primisulfuron (fall + spring split application of 20 + 20 g ai ha-1). Fall-only applications of sulfosulfuron provided crop safety and seed yield equivalent to the industry standard primisulfuron, while spring-only and fall + spring split applications had unacceptably high crop injury (mean injury > 20%) at early boot stage, and slightly reduced seed yield (3 to 5%) in well-managed fields. Split applications at all but the lowest rate gave acceptable control of roughstalk bluegrass (95 to 96%) relative to the standard primisulfuron (91%), as did fall-only sulfosulfuron at 40 g ai ha-1 (98%). Fall-only sulfosulfuron at 20 g ai ha-1 and the split of 13 g ai ha-1 in both fall + spring gave intermediate control (84 and 82%, respectively). Spring-only applications gave poor control at all rates (40 to 44%), as did fall-only sulfosulfuron at 13 g ai ha-1 (56%). When applied in the fall at 40 g ai ha-1, and possibly at 20 g ai ha-1, sulfosulfuron offers a viable alternative to primisulfuron for control of roughstalk bluegrass in Kentucky bluegrass seed production."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Spring, J. F., and R. P. Affeldt. 2021. Sulfosulfuron for control of roughstalk bluegrass in Kentucky bluegrass seed crops. Proc. West. Soc. Weed Sci. 74:p. 17.
Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=319938
If there are problems with this record, send us feedback about record 319938.
Choices for finding the above item:
Web URL(s):
http://www.wsweedscience.org/wp-content/uploads/2021-Proceedings-WSWS-Corrected.pdf#page=29
    Last checked: 06/30/2022
    Requires: PDF Reader
    Notes: Item is within a single large file
Find Item @ MSU
MSU catalog number: b2224583
Request through your local library's inter-library loan service (bring or send a copy of this TGIF record)