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| DOI: | 10.1002/its2.129 |
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| Web URL(s): | https://onlinelibrary.wiley.com/doi/10.1002/its2.129
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| Publication Type:
| Refereed |
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| Author(s): | Ignes, Martin;
Tseng, Te-Ming P.;
de Castro, Edicarlos;
Wilber, Amy L.;
McCurdy, James D. |
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| Author Affiliation: | Dep. of Plant and Soil Sciences, Mississippi State Univ., Starkville, MS |
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| Title: | Effects of spray droplet size on pronamide control of Poa annua |
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| Section: | Technical papers
Other records with the "Technical papers" Section
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| Source: | International Turfgrass Society Research Journal. Vol. 14, No. 1, June 2022, p. 1080-1083. |
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| Publishing Information: | s.l.: International Turfgrass Society |
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| # of Pages: | 4 |
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| Abstract/Contents: | "Annual bluegrass (Poa annua L.) is a problematic weed in turfgrass that has evolved resistance to 12 different herbicide sites of action. The mitotic inhibiting herbicide pronamide has both pre- and postemergence 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 1,000 µm) were sprayed in an enclosed spray chamber on two- to three-leaf stage annual bluegrass plants. Fluorescent dye was added to each treatment solution to quantify the effects of herbicide and spray droplet size on herbicide deposition. Results 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 400-µm spray droplets in pronamide treatments and with 200 µm spray droplets in flazasulfuron and pronamide + flazasulfuron treatments. The addition of flazasulfuron to pronamide did not affect herbicide deposition when compared with pronamide-alone treatments. Results suggest that 200- to 400-µm spray droplets are optimal for foliar deposition of pronamide. Alternatively, larger droplet sizes may facilitate better soil deposition of pronamide where root uptake is optimal." |
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| Language: | English |
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| References: | 15 |
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| See Also: | Updated version appears in Weed Technology, 37(4) July/August 2023, p. 368-375, R=334083. R=334083
Related abstract appears in Proceedings of the Southern Weed Science Society 75th Annual Meeting Vol. 75, 2022 p. 5, R=325156. R=325156
See also related abstract "Effects of spray droplet size on pronamide control of Poa annua", ASA, CSSA, SSSA International Annual Meeting, 2022, p. 141431, R=324996. R=324996 |
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| Note: | TIC-hosted web link available 2 years after publication date.
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ignes, M., T.-M. P. Tseng, E. de Castro, A. L. Wilber, and J. D. McCurdy. 2022. Effects of spray droplet size on pronamide control of Poa annua. Int. Turfgrass Soc. Res. J. 14(1):p. 1080-1083. |
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| DOI: 10.1002/its2.129 |
| Web URL(s):
https://onlinelibrary.wiley.com/doi/10.1002/its2.129
Last checked: 09/14/2022
Requires: HTML5
Access conditions: Item is within a limited-access website
https://onlinelibrary.wiley.com/doi/epdf/10.1002/its2.129
Last checked: 09/14/2022
Requires: JavaScript; HTML5
Access conditions: Item is within a limited-access website
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/its2.129
Last checked: 12/12/2022
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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