Full TGIF Record # 10044
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Web URL(s):https://listings.lib.msu.edu/nwtgt/1986dec.pdf#page=8
    Last checked: 01/17/2017
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Author(s):Gullikson, J. L.; Johnston, W. J.
Title:Preliminary Field Studies with Rubigan to Control Annual Bluegrass in Bentgrass Putting Green Turf
Source:Northwest Turfgrass Topics. Vol. 29, No. 3, December 1986, p. 8.
Publishing Information:Puyallup, Wash., Northwest Turfgrass Association
Keywords:TIC Keywords: Agrostis stolonifera; Bent versus Poa; Fenarimol; Fungicide evaluation; Golf greens; Poa annua control
Trade Names:Rubigan 50W
Abstract/Contents:"The use of the fungicide Rubigan 50W (fenarimol) for the control of annual bluegrass (Poa annua) in creeping bentgrass turf is under continued research at Washington State University. Field studies have been carried out on the WSU golf course to evaluate the effects of multiple applications of Rubigan on annual bluegrass populations in a bentgrass putting green. Monthly and bimonthly applications of Rubigan were applied to the bentgrass green in late fall, winter, and early spring of 1985-1986. Cumulative rates ranging from 0.6 to 0.8 oz Rubigan 50W per 1000 ft sq. were included in the trials. Annual bluegrass populations were monitored over the course of a year. Color and quality ratings were also taken. Preliminary results indicate that fall and early winter applications of Rubigan had a greater effect on reducing annual bluegrass populations than did early spring applications. The greatest reductions were seen when single applications of 4.0 oz Rubigan 50W per 1000 sq. ft. were made in early winter, or when early winter applications of 4.0 oz were preceded with early fall applications of the same rate. While the above treatments caused reductions in annual bluegrass populations, they were also responsible for the greatest declines in bentgrass quality in early spring. The most promising results were seen with monthly (Set., Oct., and Jan.) applications of 2.0 oz per 1000 sq. ft. This treatment not only gave good results for reducing annual bluegrass but showed minimal effects on the bentgrass turf in 1986. Although this treatment shows promise, it exceeds the labelled rate of Rubigan 50W for annual bluegrass control. The above results are based on one years' data. The study is being continued to examine the long term effects of Rubigan applications on annual bluegrass and creeping bentgrass turf. Studies are also being conducted at WSU to evaluate the effect Rubigan applications have on seedling growth of bentgrass and annual bluegrass, and the competitiveness between the two grass species."
Note:Entire text as abstract.
See Also:Other items relating to: POA
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gullikson, J. L., and W. J. Johnston. 1986. Preliminary Field Studies with Rubigan to Control Annual Bluegrass in Bentgrass Putting Green Turf. Northwest Turfgrass Topics. 29(3):p. 8.
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    Last checked: 01/17/2017
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MSU catalog number: SB 433 .A1 N6
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