Hostname: page-component-76dd75c94c-68sx7 Total loading time: 0 Render date: 2024-04-30T08:38:40.368Z Has data issue: false hasContentIssue false
  • English
  • Français

Imazapyr Applied Postemergence in Sunflower (Helianthus annuus) for Broomrape (Orobanche cernua) Control

Published online by Cambridge University Press:  12 June 2017

Luis Garcia-Torres ,
Mercedes Castejon-Muñoz ,
Francisca Lopez-Granados  and
Montserrat Jurado-Exposito
Luis Garcia-Torres
Affiliation:
Institute for Sostenible Agriculture, CSIC, Apartado 4084, 14080-Cordoba, SPAIN. (fax 57-202721/ 293433)
Mercedes Castejon-Muñoz
Affiliation:
Institute for Sostenible Agriculture, CSIC, Apartado 4084, 14080-Cordoba, SPAIN. (fax 57-202721/ 293433)
Francisca Lopez-Granados
Affiliation:
Institute for Sostenible Agriculture, CSIC, Apartado 4084, 14080-Cordoba, SPAIN. (fax 57-202721/ 293433)
Montserrat Jurado-Exposito
Affiliation:
Institute for Sostenible Agriculture, CSIC, Apartado 4084, 14080-Cordoba, SPAIN. (fax 57-202721/ 293433)
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted from 1991 through 1994 in several locations of Southern Spain to determine the efficacy of imazapyr as late postemergence application in sunflower for broomrape control and the crop response to this herbicide under weed-free conditions. Single applications of imazapyr at 10 to 15 g/ha on sunflower plants at about the V12 (12 leaves) to V19 (19 leaves) growth stages, infected with broomrape plants at the predominant growth stages “c” (small nodule with shoot bud visible) and “d” (shoot bud and roots well developed), resulted in effective control without damaging the crop. Double applications of imazapyr at 10 + 10 g/ha at about the same crop growth stages V12 to V19, at a time interval of 12 to 14 d between single applications, were also efficacious and well tolerated by the crop. The same herbicide treatments applied to weed-free sunflower did not adversely affect the biomass, head diameter or yield of the crop as compared with the nontreated check. As a result of the low rate of imazapyr required for broomrape control, the herbicide treatments are economical (about $3 to $6/ha), non-residual and not affected by the type of soil texture and rainfall conditions.

Keywords

Imazapyr, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-pyridinecarboxylic acidbroomrape, Orobanche cernua Loelf. # ORACE/O. cumana Wall. # ORACUsunflower, Helianthus annuus L.Low-dose herbicide technologyparasitic weedsORACEORACU
Type
Research
Information
Weed Technology , Volume 9 , Issue 4 , December 1995 , pp. 819 - 824
Copyright
Copyright © 1995 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. Anonymous. 1989. Imazapyr. p. 154–155 in Humburg, N. E., Colby, S. R., Hill, E. R., Kitchen, L. M., Lym, R. G., McAvoy, W. J., and Prasad, R., eds. Herbicide Handbook of the Weed Science Society of America, 6th edition, Champaign, IL.Google Scholar
2. Arjona-Berral, A., Mesa-García, J., and García-Torres, L. 1988. Herbicide control of broomrape in peas and lentils. FAO Plant Prot. Bull. 36:175–178.Google Scholar
3. Arjona-Berral, A., Vazquez-Cobo, A., and García-Torres, L. 1984. Broomrape (Orobanche crenata Forsk) control in lentils (Lens sculenta L.) and peas (Pisum sativum L.) with glyphosate and propyzamide. Proc. Eur. Weed Res. Soc. 3rd. Symp. on Weed Problems in The Mediterranean Area. p. 293–298.Google Scholar
4. Castejón-Muñoz, M., Romero-Muñoz, F., and García-Torres, L. 1990. Control of broomrape (Orobanche cernua) in sunflower (Helianthus annuus L.) with glyphosate. Crop Prot. 9:332–336.CrossRefGoogle Scholar
5. Frans, R., Talbert, R., Marx, D., and Crowley, H. 1096. Experimental design and techniques for measuring and analyzing plant responses to weed control practices. p. 29–46 in Camper, N. D., ed., Research Methods in Weed Science. South. Weed Sci. Soc., Champaign, IL.Google Scholar
6. García-Torres, L., Castejón-Muñoz, M., and López-Granados, F. 1994. The problem of Orobanche and its management in Spain. p. 623–626 in Pieterse, A. H., Verkleij, J.A.C. and ter Borg, S. J., eds. Proc. 3rd. Int. Workshop on Orobanche and Related Striga Research. Royal Tropical Institute, Amsterdam, The Netherlands.Google Scholar
7. García Torres, L., Dominguez-Gimenez, J., and Sobrino Vesperinas, E., 1992. El jopo del girasol en España: problemática actual y propuesta de medidas fitosanitarias. Phytoma España 44:12–15.Google Scholar
8. García-Torres, L. and López-Granados, F. 1991. Control of broomrape (Orobanche crenata Forsk) in broadbean (Vicia faba L.) with imidazolinones and other herbicides. Weed Res. 31:227–235.Google Scholar
9. García-Torres, L., López-Granados, F., and Castejón-Muñoz, M. 1994. Preemergence herbicides for the control of broomrape (Orobanche cernua) in sunflower (Helianthus annuus). Weed Res. 34:395–402.Google Scholar
10. García-Torres, L., Mesa-García, J. and Romero-Muñoz, F. 1987. Agronomic problems and chemical control of broomrapes (Orobanche spp) in Spain: a studies review. p. 241–248 in Weber, H. Chr. and Forstreuter, W., eds. Proc. Fourth Int. Symp. on Parasitic Flowering Plants. Marburg, FRG.Google Scholar
11. Jacobsohn, R. and Levy, D. 1986. Glyphosate for Orobanche control in various crops: problems and premises. p. 172–275 in ter Borg, S. J., ed. Proc. Workshop on Biology and control of Orobanche . LH/VPO, Wageningen, The Netherlands.Google Scholar
12. Lee, A., Gatterdam, P. E., Chiu, T. Y., Mallipudi, N. M., and Fiala, R. R. 1991. Plant metabolism. p. 154–165 in Shaner, D. L. and O'Connor, S. L., eds. The Imidazolinones Herbicides. CRC Press, Boca Raton, FL.Google Scholar
13. Lolas, C. P. 1986. Control of broomrape (Orobanche ramosa) in tobaco (Nicotiana tabacum). Weed Sci. 34:427–430.Google Scholar
14. Mesa-García, J., de Haro, A., and García-Torres, L. 1984. Phytotoxicity and yield response of broad bean (Vicia faba) to glyphosate. Weed Sci. 32:445–450.CrossRefGoogle Scholar
15. Parker, C. 1986. Scope of agronomic problems caused by Orobanche . p. 11–17 in ter Borg, S. J., ed. Proc. Workshop on Biology and control of Orobanche . LH/VPO, Wageningen, The Netherlands.Google Scholar
16. Ramírez-Ortega, R. and García-Torres, L. Imazapyr for broomrape (Orobanche crenata Forsk) control in faba bean. FABIS Newsl. 31:31–36.Google Scholar
17. Schneiter, A. A. and Miller, J. F. 1981. Description of sunflower growth stages. Crop Sci. 21:901–903.Google Scholar