Weed Technology (1998) 12, 670-676
Stevan Z. Knezevic, Peter H. Sikkema, Francois Tardif, Allan S. Hamill, Kevin Chandler and Clarence J. Swanton (1998)
Biologically effective dose and selectivity of RPA 201772 for preemergence weed control in corn (Zea mays)
Weed Technology 12 (4), 670-676
Abstract: Field studies were conducted in 1996 and 1997 at three locations throughout southern Ontario with the objective of developing dose-response curves of RPA 201772 for weed control and crop tolerance in corn. The biologically effective doses required to control redroot pigweed, velvetleaf, and wild mustard were 100, 90, and 80 g/ha, respectively. Yellow foxtail was controlled with 100 to 120 g/ha, while rates for common lambsquarters varied from 60 to 130 g/ha, depending on the year and location. Wild buckwheat control was poor (<30%) at all of the doses tested. RPA 201772 did not reduce corn grain yield; however, temporary crop injury was evident on coarse sandy soils.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Stevan Z. Knezevic, Clarence J. Swanton
Research topic(s) for pests/diseases/weeds:
control - general
