Full TGIF Record # 317098
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/132996
    Last checked: 12/13/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Ignes, Martin; McCurdy, James D.; de Castro, Edicarlos; Ferguson, Connor; Tseng, Te-Ming
Author Affiliation:Ignes: Mississippi State University, Starkville, MS; de Castro: Mississippi State University, Mississippi State, MS; McCurdy and Tseng: Department of Plant and Soil Sciences, Mississippi State University, MS; Ferguson: Sesaco Corporation, Yukon, OK
Title:Deposition and dynamics of pronamide for postemergence annual bluegrass (Poa annua L.) control
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)
Other records with the "Turfgrass pest management poster: Diseases, insects, weeds (includes student competition)" Section
Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 132996.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Related Web URL:https://docs.google.com/viewer?url=https://scisoc.confex.com/scisoc/2021am/mediafile/Handout/Paper132996/Poster%2520Power%2520Point%2520Copy%2520Cow%2520-%2520Martin%2520Ignes.pdf
    Last checked: 03/30/2022
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    Notes: "Effects of spray droplet size on pronamide control of Poa annua"
    Last checked: 03/30/2022
    Requires: PDF Reader
    Notes: Direct download; "Effects of spray droplet size on pronamide control of Poa annua"
Abstract/Contents:"Annual bluegrass (Poa annua L.) is a problematic weed in turfgrass that has evolved resistance to ten different herbicide sites of action, more than any other turfgrass weed. The mitotic inhibiting herbicide pronamide has both pre- and post-emergence activity on susceptible annual bluegrass populations, but on certain resistant populations, postemergence activity is hypothetically compromised due to lack of root uptake or due to an unknown foliar resistance mechanism. Spray droplet size may affect foliar and soil deposition of pronamide, thus potentially explaining variation in population control or differential shoot and root uptake. Greenhouse experiments were conducted to quantify pronamide, flazasulfuron, and pronamide + flazasulfuron (a common tank mixture) deposition on annual bluegrass as affected by spray-droplet size. Five droplet sizes (200, 400, 600, 800, and 1000 μm) were sprayed in an enclosed spray chamber on two-to-three leaf stage annual bluegrass plants. Fluorescent tracer dye was added to each treatment solution to quantify the effects of herbicide and spray droplet size on herbicide deposition. Results from this study indicate that spray droplet size affects deposition of pronamide and flazasulfuron, applied alone and in combination, on annual bluegrass. The highest foliar deposition was produced with the 400 μm spray droplet size in pronamide treatments and with the 200 μm spray droplet size in flazasulfuron and pronamide + flazasulfuron treatments. Regression models of pronamide and pronamide + flazasulfuron treatments were similar and, therefore, the addition of flazasulfuron to pronamide in the tank mixture (pronamide + flazasulfuron treatments) did not affect herbicide deposition when compared to pronamide-alone treatments. Results suggest that the 200 to 400 μm spray droplet size are optimal for foliar deposition of pronamide. Alternatively, larger droplet sizes may facilitate better soil deposition of pronamide where root uptake is optimal. Future research will evaluate pronamide efficacy as affected by spray droplet size."
Note:"Poster # 1228"
Section "159"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ignes, M., J. D. McCurdy, C. Ferguson, T.-M. Tseng, and E. de Castro. 2021. Deposition and dynamics of pronamide for postemergence annual bluegrass (Poa annua L.) control. Agron. Abr. p. 132996.
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    Last checked: 12/13/2022
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