Full TGIF Record # 157463
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2009.pdf#page=42
    Last checked: 12/10/2013
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Westra, Eric P.; Shaner, Dale; Westra, Philip
Author Affiliation:Westra: Colorado State University; Shaner: USDA-ARS, Ft. Collins, CO
Title:KIH-485 behavior in different soils
Section:Poster session
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Meeting Info.:Albuquerque, NM: March 10-12, 2009
Source:Proceedings of the Western Society of Weed Science. Vol. 62, 2009, p. 29.
# of Pages:1
Publishing Information:Newark, CA: Western Society of Weed Science
Keywords:TIC Keywords: Biomass; Cultivar variation; Herbicide evaluation; Lolium rigidum; Preemergence weed control; Rainfall simulators; Soil analysis
Trade Names:KIH-485
Abstract/Contents:"Control of rigid ryegrass (Lolium rigidum) was evaluated with a dose response study using six rigid ryegrass accessions planted into 4 different soils and spread at five rates of KIH-485 (pyroxasulfone). A simulated rainfall study was conducted to evaluate pre-emergence lolium control with KIH-485 at three rainfall intervals after application; 1, 3, OR 7 days after treatment (DAT). In the dose response study across the four soils, QLS, Platner, and California were similar with an average dry weight of 0.03 to 0.04 grams per three plants. The Montana soil averaged 0.04 to 0.06 grams per three plants. KIH-485 soil activity appears to be correlated with key soil characteristics. Across the six rigid ryegrass accessions, accessions one, two, three, and six had a dry weight average of 0.03 to 0.05 grams per three plants. Accession 4 produced less biomass, averaging 0.02 grams per three plants, while accession 5 produced 0.06 grams per three plants. Evaluating biomass across herbicide rates, there was a break in control around 0.006lb ai/a. This research demonstrates that KIH-485 exhibits very high activity for the control of rigid ryegrass. Rates above this provided visual control above 90%. In this simulated rainfall study, delaying rainfall until 7 DAT reduced lolium visual control by 21%. This highlights the importance of timely rainfall for optimum activation of KIH-485."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Westra, E. P., D. Shaner, and P. Westra. 2009. KIH-485 behavior in different soils. Proc. West. Soc. Weed Sci. 62:p. 29.
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    Last checked: 12/10/2013
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