Abstract

The development of glyphosate-resistant weeds has greatly complicated weed control in soybeans. Roundup Ready 2 Xtend and Liberty Link soybeans provide an alternative postemergence herbicide options for weed control in soybeans. Liberty Link and Roundup Ready 2 Xtend programs provided better overall weed control and slightly higher yields than Roundup Ready 2 Yield programs in this experiment. Yields of Roundup Ready 2 Yield soybeans were likely influenced by more weed competition and possibly crop injury from spray tank contamination by dicamba. Dicamba injury from tank contamination to Roundup Ready 2 Yield soybeans decreased with each subsequent treatment and also with time. At soybean maturity, injury from dicamba tank contamination was no longer evident.

Keywords: Roundup Ready 2 Yield, Roundup Ready 2 Xtend, Liberty Link, soybeans, Palmer amaranth, velvetleaf, morningglory

How to Cite:

Peterson, D. E., Thompson, C. & Minihan, C. L., (2017) “Comparison of Different Weed Control Technology Programs”, Kansas Agricultural Experiment Station Research Reports 3(6). doi: https://doi.org/10.4148/2378-5977.7444