Chemical control strategies for Poa annua in managed turfgrass systems

Abstract Poa annua L. is a widespread and persistent weed in managed turfgrass systems, exhibiting both annual and short‐lived perennial growth habits. Effective management requires an integrated approach, with chemical herbicides remaining a primary tool. This review outlines the current landscape of chemical control strategies, including pre‐emergence and post‐emergence herbicide options, plant growth regulators, and emerging chemistries. Herbicide resistance in Poa annua continues to pose a significant challenge, with confirmed cases spanning multiple modes of action. Consequently, sustainable management depends on rotating herbicide classes, using mixtures and sequences of treatments, and integrating nonchemical tactics. Continued research into novel herbicide modes of action, application technologies, and integrated weed management approaches will be critical for maintaining long‐term control of Poa annua across diverse turfgrass systems.