WEEDS: Herbicide Resistance Management Strategy

Supporting informed weed management decisions that protect herbicide effectiveness for the long term.

Wednesday 9 September 2026

The Herbicide Resistance Management Strategy (HRMS) helps growers and agronomists make informed weed management decisions that protect herbicide effectiveness for the long term.

It was completely revised in 2025 to reflect a need to broaden the original strategy developed in 2013 to reflect new cotton varieties with expanded over-the-top herbicide options, along with increasing resistance to herbicides beyond glyphosate.

The updated HRMS builds on the success of the original framework, using hundreds of computer simulations to test different herbicide combinations and weed population scenarios.

The strategy shows how different weed control tactics can work together to delay resistance, reduce weed seed banks, and maintain profitable production systems. It provides practical guidance on the likely benefits of integrating alternative control measures, helping you build a more robust weed management program.

The HRMS is updated annually to ensure it remains relevant for cotton growers. It is published each year in the CRDC/CottonInfo Cotton Pest Management Guide.

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