Influence of CGA-277476 on Efficacy of Postemergence Graminicides
| Autor: | James C. Holloway, David R. Shaw, Eric W. Palmer |
|---|---|
| Rok vydání: | 1999 |
| Předmět: |
0106 biological sciences
biology Brachiaria platyphylla Chemistry 04 agricultural and veterinary sciences Plant Science Echinochloa biology.organism_classification Sorghum 01 natural sciences 010602 entomology Animal science Biochemistry 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Antagonism Alkanoic acid Chemical control Agronomy and Crop Science Application methods Broadleaf signalgrass |
| Zdroj: | Weed Technology. 13:48-53 |
| ISSN: | 1550-2740 0890-037X |
| DOI: | 10.1017/s0890037x00044894 |
| Popis: | Field experiments were conducted at three Mississippi locations to evaluate potential antagonism when postemergence graminicides were tank-mixed with CGA-277476 and to determine if the antagonism could be overcome with an increase in graminicide rate. At all locations when the 1 x rate of clethodim, fluazifop-P, or quizalofop was tank-mixed with 79 g ai/ ha CGA-277476, johnsongrass, broadleaf signalgrass, and barnyardgrass control was reduced 5 to 30%. When the graminicide rates were increased to 1.5 X, antagonism was still present for fluazifop-P and quizalofop. However, 156 g ai/ha clethodim overcame the antagonism when tank-mixed with 79 g/ha CGA- 277476 compared to 105 g/ha clethodim. CGA-277476 alone controlled barnyardgrass and broadleaf signalgrass 38 to 63% and johnsongrass 60 to 85%. There were no differences in soybean yields with graminicides applied alone or tank-mixed with CGA-277476. Nomenclature: CGA-277476, 2(((((4,6-dimethyl-2-pyrimidinyl)amino)carbonyl)amino)sulfonyl)-, 3- oxetanyl-ester; clethodim, (E E)-( + )-2-(1 -(((3-chloro-2propenyl)oxy)imino)propyl)-5-(2-(ethyl- thio)propyl)-3-hydroxy-2-cyclohexen- l-one; fluazifop-P, (R)-2-(4-((5-trifluoromethyl)-2-pyridi- nyl)oxy)phenoxy)propanoic acid; quizalofop, (?)-2-(4-((6-chloro-2-quinoxalinyl)oxy)phenoxy)pro- panoic acid; barnyardgrass, Echinochloa crus-galli (L.) Beauv. #3 ECHCG; broadleaf signalgrass, Brachiaria platyphylla (Griseb.) Nash # BRAPP; johnsongrass, Sorghum halepense (L.) Pers. # SORHA; soybean, Glycine max (L.) Merr.'Hartz 4994,' 'Pioneer 9592.' Additional index words: Antagonism, Brachiaria platyphylla, Echinochloa crus-galli, Sorghum hal- epense, BRAPP, ECHCG, SORHA. Abbreviations: Gm, Greenville; POST, postemergence; Stk-N, Starkville north; Stk-S, Starkville |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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