Abstract

Kochia control at 8 weeks after spring application (WAST) was greatest when Clar­ity (dicamba) was included in the spring applications or when Corvus (isoxaflutole + thiencarbazone) was applied with atrazine and Clarity in the fall. The best kochia con­trol at 13 WAST occurred with spring applications containing Clarity. Only Clarity plus Atrazine, Sharpen, Zidua, Spartan Guard, or Corvus applied in the spring provided as much as 90% kochia control at 20 WAST. Only the spring application of Spartan Guard and Clarity controlled Russian thistle 90% at 20 WAST.

Keywords: fallow, weed control, preemergence applications, kochia, Russian thistle, spring-applied herbicides, Clarity, Dicamba, Atrazine, Spartan Guard, Sulfentrazone, Pendimethalin, Sharpen, Saflufenicil, Zidua, Pyroxasulfone, Corvus, Isoxaflutole, Thiencarbazone

How to Cite:

Currie, R. & Geier, P., (2016) “Fallow Weed Control with Preemergence Applications of Clarity, Atrazine, Spartan Guard, Sharpen, Zidua, and Corvus”, Kansas Agricultural Experiment Station Research Reports 2(7). doi: https://doi.org/10.4148/2378-5977.1264