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| Web URL(s): | http://www.newss.org/wp-content/uploads/2017/07/2017-NEPPSC-Proceedings-FINAL.pdf#page=103
Last checked: 04/16/2018
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https://www.newss.org/wp-content/uploads/2017/07/2017-NEWSS-Proceedings-FINAL.pdf#page=91
Last checked: 01/23/2023
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Notes: Item is within a single large file; Proceedings of the Seventy First Annual Meeting of the Northeastern Weed Science Society reprint |
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| Publication Type:
| Proceedings |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Henry, G. M.;
Tucker, K. A.;
Brosnan, J. T.;
Breeden, G. K.;
Estes, A. |
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| Author Affiliation: | University of Georgia, Athens, GA |
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| Title: | Preemergence crabgrasss spp. control in turfgrass with EH1579 and EH1580 containing vexis |
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| Meeting Info.: | Philadelphia, Pennsylvania: January 3-6, 2017 |
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| Source: | Proceedings of the Second Annual Meeting of the Northeastern Plant, Pest, and Soils Conference. 2017, p. 96. |
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| Publishing Information: | s.l.: Northeastern Weed Science Society; Northeastern Regional Branch of the American Society of Agronomy, Crop Science Society of America, & Soil Science Society of America; and American Society of Horticultural Science - Northeastern Division |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Crabgrass control; Digitaria ischaemum; Digitaria sanguinalis; Herbicide efficacy; Herbicide evaluation; Preemergence weed control; Pyrimisulfan
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| Trade Names: | EH1579; EH1580; Vexis |
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| Abstract/Contents: | "Field experiments were conducted at the Athens Turfgrass Research and Education Center in Athens, GA and the East Tennessee Research and Education Center in Knoxville, TN during the spring and summer of 2016 to evaluate the preemergence control of crabgrass spp. (Digitaria spp.) with EH1579 and EH1580 containing Vexis. Both chemistries previously exhibited cool- and warm-season turfgrass tolerance. Research in GA was conducted on bermudagrass (5.1 cm) with a history of large crabgrass infestation [Digitaria sanguinalis (L.) Scop.], while research in TN was conducted on bermudagrass (1.6 cm) with a history of smooth crabgrass [Digitaria ischaemum (Schreb.) Schreb. Ex Muhl.]. The experimental design was a randomized complete block with four replications at each location. Herbicide treatments were initiated in GA on March 8, 2016 with a sequential application on May 4, 2016. Treatments consisted of EH1579 [90 g ai ha-1 , 180 g ai ha-1 , and 90 g ai ha-1 followed by (fb) 90 g ai ha-1 ], EH1580 (90 g ai ha-1 , 180 g ai ha-1 , and 90 fb 90 g ai ha-1 ), and indaziflam at 32.7 g ai ha-1 (industry standard). A non-treated check was added for comparison. Herbicide treatments were initiated in TN on March 7, 2016 with a sequential application on May 2, 2016. EH1579 and EH1580 treatments were similar in TN as previously described, but industry standards consisted of prodiamine at 840 g ai ha-1 and dithiopyr at 560 g ai ha-1 . Herbicides were applied with a CO2 powered backpack sprayer calibrated to deliver 187 L ha-1 (GA) or 375 L ha-1 (TN). Visual ratings of % crabgrass cover was recorded 85 and 112 days after initial treatment (DAIT). Percent cover was compared to the non-treated check within each replication in order to determine % crabgrass control. EH1579 resulted in 52 to 56% large crabgrass control 85 DAIT when single applications were made at 90 and 180 g ai ha-1 . However, sequential applications of EH1579 at 90 g ai ha-1 resulted in 81% large crabgrass control 85 DAIT. EH1579 at 180 g ai ha-1 or 90 fb 90 g ai ha-1 resulted in 73 to 80% smooth crabgrass control in TN, while a single application of EH1579 at 90 g ai ha-1 only resulted in 43% control. Large crabgrass control was moderate in response to EH1580 85 DAIT. EH1580 at 180 g ai ha-1 or 90 fb 90 g ai ha-1 resulted in 58 to 62% large crabgrass control in GA, while a single application of EH1580 at 90 g ai ha-1 only resulted in 40% control. EH1580 at 180 g ai ha-1 or 90 fb 90 g ai ha-1 resulted in good smooth crabgrass control (89 to 93%), while EH1580 at 90 g ai ha-1 only resulted in 63% control 85 DAIT. Prodiamine at 840 g ai ha-1 , dithiopyr at 560 g ai ha-1 , and indaziflam at 32.7 g ai ha-1 resulted in 99%, 100%, and 63% crabgrass spp. control 85DAIT. Control of crabgrass spp. was = 56% 112 DAIT in response to EH1579, regardless of rate, application frequency, or trial location. EH1580 at 180 g ai ha-1 or 90 fb 90 g ai ha-1 resulted in 68 to 69% large crabgrass control in GA, while a single application of EH1580 at 90 g ai ha-1 only resulted in 41% control 112 DAIT. Smooth crabgrass control was 84% 112 DAIT in TN in response to EH1580 at 180 g ai ha-1 , while control dropped to 63 and 43% in response to EH1580 at 90 fb 90 g ai ha-1 and 90 g ai ha-1 , respectively. Crabgrass spp. control was 96%, 91%, and 69% 112 DAIT in response to prodiamine at 840 g ai ha-1 , dithiopyr at 560 g ai ha-1 , and indaziflam at 32.7 g ai ha-1 , respectively." |
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| Language: | English |
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| References: | 0 |
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| See Also: | See also related abstract "Preemergence crabgrass spp. control with EH1579 and EH1580 containing vexis in bermudagrass" ASA, CSSA and SSSA International Annual Meetings, 2017, p. 105272, R=290169. R=290169 |
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| Note: | Reprint appears in Proceedings of the Seventy First Annual Meeting of the Northeastern Weed Science Society, Vol. 71 2017, p. 63
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Henry, G. M., K. A. Tucker, J. T. Brosnan, G. K. Breeden, and A. Estes. 2017. Preemergence crabgrasss spp. control in turfgrass with EH1579 and EH1580 containing vexis. p. 96. In Proceedings of the Second Annual Meeting of the Northeastern Plant, Pest, and Soils Conference. Philadelphia, Pennsylvania: January 3-6, 2017. s.l.: Northeastern Weed Science Society; Northeastern Regional Branch of the American Society of Agronomy, Crop Science Society of America, & Soil Science Society of America; and American Society of Horticultural Science - Northeastern Division. |
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| Web URL(s):
http://www.newss.org/wp-content/uploads/2017/07/2017-NEPPSC-Proceedings-FINAL.pdf#page=103
Last checked: 04/16/2018
Requires: PDF Reader
Notes: Item is within a single large file
https://www.newss.org/wp-content/uploads/2017/07/2017-NEWSS-Proceedings-FINAL.pdf#page=91
Last checked: 01/23/2023
Requires: PDF Reader
Notes: Item is within a single large file; Proceedings of the Seventy First Annual Meeting of the Northeastern Weed Science Society reprint |
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