Hostname: page-component-848d4c4894-ndmmz Total loading time: 0 Render date: 2024-05-02T05:10:46.063Z Has data issue: false hasContentIssue false
  • English
  • Français

Imazamox application timing for small broomrape (Orobanche minor) control in red clover

Published online by Cambridge University Press:  20 January 2017

Hanan Eizenberg ,
Jed B. Colquhoun  and
Carol A. Mallory-Smith
Jed B. Colquhoun
Affiliation:
Department of Crop and Soil Science, 107 Crop Science Building, Oregon State University, Corvallis, OR 97331
Carol A. Mallory-Smith
Affiliation:
Department of Crop and Soil Science, 107 Crop Science Building, Oregon State University, Corvallis, OR 97331
Get access Rights & Permissions [Opens in a new window]

Abstract

Broomrapes (Orobanche spp.) are chlorophyll-lacking root parasites of many dicotyledonous species and cause severe damage to vegetable and field crops from several botanic families such as Fabaceae, Solanaceae, Compositae, and Umbelliferae. In Oregon, small broomrape has been identified as a parasite of red clover. In Oregon field studies, small broomrape control was excellent when imazamox was applied postemergence to red clover but preemergence to small broomrape. Temperature is one of the main factors that affect broomrape development. The objective of this study was to optimize small broomrape chemical control in red clover based on growing degree days (GDD). The study was conducted in controlled temperature conditions. Red clover plants were grown in soil artificially infested with small broomrape seeds. Imazamox was applied at 800, 1,000, 1,200, and 1,400 GDD. There was no injury to red clover from any imazamox treatment at any of the application timings. Small broomrape shoot emergence was reduced where imazamox was applied compared to the untreated control. Early imazamox applications reduced small broomrape biomass more than later applications. Control was greatest when imazamox was applied at 20 g ai ha−1 at 1,000 GDD. This application controlled small broomrape for 800 GDD after initial treatment. However, season-long control would require an additional treatment. This model predicts the optimal timing and rate of imazamox application for small broomrape control in red clover.

Keywords

Imazamoxsmall broomrape, Orobanche minor J. E. Smith ORAMIred clover, Trifolium pratense L. TRFPRGrowing degree daysmodelparasitic plant
Type
Research Article
Information
Weed Science , Volume 54 , Issue 5 , October 2006 , pp. 923 - 927
Copyright
Copyright © 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

Aly, R., Goldwasser, Y., Eizenberg, H., Hershenhorn, J., Golan, S., and Kleifeld, Y. 2001. Broomrape (Orobanche cumana) control in sunflower (Helianthus annuus) with imazapic. Weed Technol. 15:306–309.Google Scholar
Brown, R. F. and Mayer, D. G. 1988. Representing cumulative germination. The use of the Weibull function and other empirically derived curves. Ann. Bot. 61:127–138.Google Scholar
Castejon-Munoz, M., Romero-Manoz, F., and Garcia-Torres, L. 1993. Effect of planting date on broomrape (Orobanche cumana Loefl.) infection on sunflower (Helianthus annuus L). Weed Res. 33:171–6.Google Scholar
Colquhoun, J. B., Mallory-Smith, C. A., Ross, K. C., Cole, C. M., and Affeldt, R. P. 2002. Integrated management of clover broomrape (Orobanche minor) in red clover. Weed Sci. Soc. Am. Abstr. 42:36.Google Scholar
Eizenberg, H., Colquhoun, J. B., and Mallory-Smith, C. A. 2004. The relationship between temperature and small broomrape (Orobanche minor) parasitism in red clover. Weed Sci. 52:735–741.Google Scholar
Eizenberg, H., Colquhoun, J. B., and Mallory-Smith, C. A. 2005. A predictive degree-days model for small broomrape (Orobanche minor) parasitism in red clover in Oregon. Weed Sci. 53:37–40.Google Scholar
Eizenberg, H., Hershenhorn, J., Plakhine, D., Shtienberg, D., Kleifeld, Y., and Rubin, B. 2003a. Effect of temperature on susceptibility of sunflower varieties to Orobanche cumana and O. aegyptiaca . Weed Sci. 51:279–286.Google Scholar
Eizenberg, H., Plakhine, D., Hershenhorn, J., Kleifeld, Y., and Rubin, B. 2003b. Resistance to broomrape (Orobanche spp.) in sunflower (Helianthus annuus L.) is temperature dependent. J. Exp. Bot. 54:1305–1311.Google Scholar
Eizenberg, H., Tanaami, Z., Jacobsohn, R., and Rubin, B. 2001. Effect of temperature on the relationship between Orobanche spp. and carrot (Daucus carota L). Crop Prot. 20:415–420.Google Scholar
Eizenberg, H., Tanaami, Z., Ovdat, N., Rubin, B., and Jacobsohn, R. 1998. Effect of seasonal conditions on host-parasite relationship in Orobanche crenata and O. aegyptiaca . Pages 187–193 in Wegmann, K., Musselman, L. J., Joel, D. M. eds. Current problems of Orobanche research. Proceedings of the 4th International Workshop on Orobanche Research, Albena, Bulgaria. Albena, Bulgaria: Institute for Wheat and Sunflower Dobroudja.Google Scholar
Foy, C. L., Jain, R., and Jacobsohn, R. 1989. Recent approaches for chemical control of broomrape (Orobanche spp). Pages 123–152 in Foy, C. L. ed. Reviews of Weed Science. Vol. 4. Champaign, IL: Weed Science Society of America.Google Scholar
Garcia-Torres, L., Lopez-Granados, F., and Castejon-Munoz, M. 1994. Pre-emergence herbicides for the control of broomrape (Orobanche cernua Loef.) in sunflower (Helianthus annuus L). Weed Res. 34:395–402.Google Scholar
Goldwasser, Y., Eizenberg, H., Golan, S., and Kleifeld, Y. 2002. Control of Orobanche crenata and O. aegyptiaca in parsley. Crop Prot. 22:295–305.Google Scholar
Goldwasser, Y., Kleifeld, Y., Golan, S., Bargutti, A., and Rubin, B. 1995. Dissipation of metham-sodium from soil and its effect on the control of Orobanche aegyptiaca . Weed Res. 35:445–452.Google Scholar
Lins, R., Colquhoun, J. B., Cole, C. M., and Mallory-Smith, C. A. 2005. Postemergence small broomrape (Orobanche minor) in red clover. Weed Technol. 19:411–415.Google Scholar
McMaster, G. S. and Wilhelm, W. W. 1997. Growing degree-days: one equation, two interpretations. Agric. For. Meteorol. 87:291–300.CrossRefGoogle Scholar
Parker, C. and Riches, C. R. 1993. Pages 111–164 in Parasitic Weeds of the World: Biology and Control. Wallingford, UK: CAB International.Google Scholar
Ross, K. C., Colquhoun, J. B., and Mallory-Smith, C. A. 2004. Small broomrape (Orobanche minor) germination and early development in response to plant species. Weed Sci. 52:260–266.Google Scholar