Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-12-01T01:37:41.930Z Has data issue: false hasContentIssue false
  • English
  • Français

Johnsongrass (Sorghum halepense) Control with Imazethapyr and Haloxyfop in Conventional and Vertical-tilled Soybean (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Hector J. Tassara ,
Jose Santoro ,
Mircza C. De Seiler ,
Esteban Bojanich ,
Claudio Rubione ,
Ricardo Pavon ,
Emilio H. Satorre  and
Roberto L. Benech-Arnold
Hector J. Tassara
Affiliation:
Product Dev. and Tech. Assist. Dep., Cyanamid de Argentina S.A., Buenos Aires, Argentina
Jose Santoro
Affiliation:
Product Dev. and Tech. Assist. Dep., Cyanamid de Argentina S.A., Buenos Aires, Argentina
Mircza C. De Seiler
Affiliation:
Product Dev. and Tech. Assist. Dep., Cyanamid de Argentina S.A., Buenos Aires, Argentina
Esteban Bojanich
Affiliation:
Product Dev. and Tech. Assist. Dep., Cyanamid de Argentina S.A., Buenos Aires, Argentina
Claudio Rubione
Affiliation:
Product Dev. and Tech. Assist. Dep., Cyanamid de Argentina S.A., Buenos Aires, Argentina
Ricardo Pavon
Affiliation:
Product Dev. and Tech. Assist. Dep., Cyanamid de Argentina S.A., Buenos Aires, Argentina
Emilio H. Satorre
Affiliation:
Dep. Plant Production, Fac. of Agron., Univ. Buenos Aires, Buenos Aires, Argentina
Roberto L. Benech-Arnold
Affiliation:
Dep. Plant Production, Fac. of Agron., Univ. Buenos Aires, Buenos Aires, Argentina
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies in conventional and vertical-tilled soybeans were conducted in 1992/93 and 1993/94 at four locations in Argentina to compare the efficacy of imazethapyr and haloxyfop for johnsongrass control. Control was evaluated by measuring frequency of johnsongrass-infested areas at the beginning of the 1992/93 and 1993/94 growing seasons. Relative johnsongrass leaf area and number of rhizome phytomers within infested areas also was evaluated. Herbicide application reduced frequency of infested areas in the 1992/93 growing season. Frequency of infested areas increased in check plots. No differences were found among herbicide treatments, suggesting that the effect of imazethapyr was as high as that observed for specific graminicides. Reduction in frequency of infested areas caused by herbicide treatments was accompanied to some extent by a decrease in intensity of infestation within infested patches assessed by measuring johnsongrass relative leaf area. Phytomer population levels, on the other hand, were reduced only after two consecutive years of herbicide application. No differences were found among herbicide treatments in terms of impact on both measures of weed abundance. Johnsongrass responded similarly to all treatments regardless of tillage system.

Keywords

Imazethapyr, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidhaloxyfop, (±)-2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy]propanoic acidjohnsongrass, Sorghum halepense (L.) Pers. ♯ SORHAsoybean, Glycine max (L.) Merr.
Type
Weed Management
Information
Weed Science , Volume 44 , Issue 2 , June 1996 , pp. 345 - 349
Copyright
Copyright © 1996 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Banks, P. A. and Bundschuh, S. A. 1989. Johnsongrass control in conventionally tilled and no-tilled soybean with foliar-applied herbicides. Agron. J. 81: 757–760.Google Scholar
2. Cantwell, J. R., Liebl, R. A., and Slife, F. W. 1989. Imazethapyr for weed control in soybeans (Glycine max). Weed Technol. 3: 596–601.CrossRefGoogle Scholar
3. Carlson, S. J. and Taylor, F. R. 1989. Imazethapyr for use in edible beans and peas in the United States. Proc. South Weed Sci. Soc. 42–57.Google Scholar
4. Ghersa, C. M., Leon, R. J. C., and Soriano, A. 1985. Efecto del sorgo de Alepo sobre la producción de soja, de maíz y de las malezas presentes en estos cultivos. Rev. Fac. Agron. Univ. Buenos Aires 6: 123–129.Google Scholar
5. Ghersa, C. M. and Martinez-Ghersa, M. A. 1991. A field method for predicting yield losses in maize caused by johnsongrass (Sorghum halepense). Weed Technol. 5: 279–285.Google Scholar
6. Ghersa, C. M. and Satorre, E. H. 1985. Un método para determinar la infestación de Sorghum halepense L. Pers., en areas cultivadas. Su utilización para la evaluación de pérdidas de cosecha en cultivos de maíz y soja. Tecnicrea. 4: 3–6.Google Scholar
7. Ghersa, C. M., Satorre, E. H., Van Esso, M. L., Pataro, A. M., and Elizagaray, R. 1990. The use of a thermal calendar model to improve the efficiency of herbicide applications in Sorghum halepense (L.) Pers., Weed Res. 30: 153–160.Google Scholar
8. Johnson, W. G. and Frans, R. E. 1991. Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with postemergence herbicides. Weed Technol. 5: 87–91.Google Scholar
9. Kershaw, K. 1964. Quantitative and dynamic ecology. Edward Arnold Pub., London. 170 pp.Google Scholar
10. Klingaman, T. E., King, C. A., and Oliver, L. R. 1992. Effect of application rate, weed species, and weed stage of growth on Imazethapyr activity. Weed Sci. 40: 227–232.Google Scholar
11. Leguizamón, E. S. and Vitta, J. I. 1989. Análisis de la función de daño por Sorgo de Alepo (Sorghum halepense (L.) Pers.) en Soja (Glycine max (L.) Merr.). Proc. World Soybean Res. Conf. IV. Buenos Aires, Argentina. pp 1632–1638.Google Scholar
12. McWhorter, C. G. and Hartwig, E. E. 1972. Competition of johnsongrass and cocklebur with six soybean varieties. Weed Sci. 20: 56–59.Google Scholar
13. Riley, D. G. and Shaw, D. R. 1989. Johnsongrass (Sorghum halepense) and pitted morningglory (Ipomoea lacunosa) control with imazaquin and imazethapyr. Weed Technol. 3: 95–98.Google Scholar
14. Shaw, D. R., Ratnayake, S., and Smith, C. A. 1990. Effects of herbicide application timing on johnsongrass (Sorghum halepense) and pitted morningglory (Ipomoea lacunosa) control. Weed Technol. 4: 900–903.CrossRefGoogle Scholar
15. Van Esso, M. L. and Ghersa, C. M. 1993. Improving johnsongrass (Sorghum halepense) control in soybean and sunflower cropping systems. Weed Sci. 41: 107–113.Google Scholar
16. Vidrine, P. R. 1989. Johnsongrass (Sorghum halepense) control in soybeans (Glycine max) with postemergence herbicides. Weed Technol. 3: 455–458.Google Scholar
17. Vitta, J. I. and Leguizamón, E. S. 1991. Dynamics and control of Sorghum halepense (L.) Pers. shoot populations: a test of a thermal calendar model. Weed Res. 31: 73–79.Google Scholar
18. Vitta, J. I., Satorre, E.H., and Leguizamón, E. S. 1993. Using canopy attributes to evaluate competition between Sorghum halepense (L.) Pers. and soybean. Weed Res. 33: 89–97.Google Scholar
19. Williams, C. S. and Hayes, R. M. 1984. Johnsongrass (Sorghum halepense) competition in soybean (Glycine max). Weed Sci. 32: 498–501.Google Scholar