Skip to main content Accessibility help

Response of Corn to Preemergence and Postemergence Applications of Saflufenacil

  • Nader Soltani (a1), Christy Shropshire (a1) and Peter H. Sikkema (a1)


Saflufenacil (BAS 800H) is a new herbicide being developed by BASF for PRE broadleaf weed control in corn. Field studies were conducted at two Ontario locations in 2006 and 2007 to evaluate the tolerance of field corn to PRE and POST (spike and two- to three-leaf corn) applications of saflufenacil at 50, 100, and 200 g ai/ha with and without an adjuvant (surfactant blend + solvent [petroleum hydrocarbons]; 1% v/v). Saflufenacil applied PRE reduced corn height by as much as 12% with the highest rate of 200 g/ha; however, corn yield was not affected. When saflufenacil was applied without an adjuvant to corn at the spike stage, injury was as much as 12%, 7 d after treatment (DAT). However, corn height and yield were not affected. Saflufenacil applied POST to two- to three-leaf corn at 50 to 200 g/ha without an adjuvant resulted in as much as 25% injury and reduced corn height 31% but did not affect yield. Adding an adjuvant to POST applications of saflufenacil caused as much as 4 and 99% injury, reduced corn height 13 and 77%, and reduced corn yield 0 and 59% when applied to corn at the spike and at the two- to three-leaf stages, respectively. Based on these results, saflufenacil applied PRE can be safely used in corn at rates up to 200 g/ha. Saflufenacil applied to corn at the spike and two- to three-leaf stage at 50 or 100 g/ha without an adjuvant demonstrated acceptable corn tolerance and may allow for the use of saflufenacil beyond the proposed PRE use pattern. In contrast, applying saflufenacil POST with an adjuvant to spike and two- to three-leaf stage corn resulted in unacceptable injury and yield losses in field corn.


Corresponding author

Corresponding author's E-mail:


Hide All
Anonymous 2008. Kixor® worldwide technical brochure. BASF Publication No. GL-69288. Research Triangle Park, NC: BASF Corporation. 18.
Bartlett, M. S. 1947. The use of transformations. Biometrics 3:3952.
Geier, P. W. and Stahlman, P. W. 1999. EXP 31130A efficacy and corn (Zea mays) response in western Kansas. Weed Technol 13:404410.
Knezevic, S. Z., Sikkema, P. H., Tardif, F., Hamill, A. S., Chandler, K., and Swanton, C. J. 1998. Biologically effective dose and selectivity of isoxaflutole for preemergence weed control in corn (Zea mays L.). Weed Technol 12:670676.
Liebl, R. A., Walter, H., Bowe, S. J., Holt, T. J., and Westberg, D. E. 2008. BAS 800H: a new herbicide for preplant burndown and preemergence dicot weed control. Lawrence, KS: Weed Science Society of America 48:120. [Abstract.].
[OMAFRA] Ontario Ministry of Agriculture Food and Rural Affairs 2007. Guide to Weed Control. Toronto, ON, Canada: OMAFRA Publication No. 75. 396.
O'Sullivan, J., Thomas, R. J., and Sikkema, P. H. 2001. Sweet corn (Zea mays) cultivar sensitivity to RPA 201772. Weed Technol 15:332336.
Senseman, A. S. 2007. Herbicide Handbook. 9th ed. Champaign, IL: Weed Science Society of America. 458.
Sikkema, P. H., Knezevic, S. Z., Hamill, A. S., Tardif, F., and Swanton, C. J. 1999. Biologically effective dose and selectivity for SAN 1269H for weed control in corn (Zea mays L.). Weed Technol 13:283289.
Sprague, C. L., Kells, J. J., and Penner, D. 1999. Weed control and corn (Zea mays) tolerance from soil-applied RPA 201772. Weed Technol 13:713725.
Sprague, C. L., Stoller, E. W., and Hart, S. E. 1997. Preemergence broadleaf weed control and crop tolerance in imidazolinone-resistant and –susceptible corn (Zea mays). Weed Technol 11:118122.
Tayler-Lovell, S. and Wax, L. M. 2001. Weed control in field corn with RPA 201772 combinations with atrazine and s-metolachlor. Weed Technol 15:249256.
Wicks, G., Knezevic, S. Z., Bernards, M., Wilson, R. G., Klein, R. N., and Martin, A. R. 2007. Effect of planting depth and isoxaflutole rate on corn injury in Nebraska. Weed Technol 21:642646.


Response of Corn to Preemergence and Postemergence Applications of Saflufenacil

  • Nader Soltani (a1), Christy Shropshire (a1) and Peter H. Sikkema (a1)


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed