One of the most popular K-State Research and Extension publications is here! This annually updated guide provides herbicide recommendations, application guidance, and comparative information for major field crops, fallow, pastures, rangeland, and noncropland areas, along with sections on herbicide modes of action, resistance management, and application best practices. For crops not listed, consult your local K-State Extension agricultural agent.
Some of the updates added for 2026 include information on forage sorghum, efficacy of residual herbicides in fallow, preemergence herbicides for oats, a devil's claw rating for cotton, and two new products, Intrava DX and NovaGraz. Additional updates may be implemented in the online edition in March 2026 if new information is released.
How can I access the online version?
The online version of the 2026 K-State Chemical Weed Control Guide is available at:
You can also use the camera app on a mobile device and scan the QR code below to be directed to the Weed Control Guide.
When viewing the file in a web browser or in Adobe, bookmarks can be accessed to guide you to the first page of every section (options vary per program settings and device type).
How can I order copies?
If you would like to purchase hard copies of the 2026 Weed Control Guide, use the 2025-2026 Kansas Ag Experiment Station Order Form.
Sarah Lancaster, Extension Weed Science Specialist
slancaster@ksu.edu
Tags: weeds Weed Control Guide