Proxy (ethephon) is effective for controlling Poa annua and annual bluegrass seedheads when applied prior to the emergence of seedheads. In these Green Solutions updates, Bayer provides a simpler method of application timing. Read how applying Proxy in the fall, followed by two spring applications, improves overall seedhead control and consistency of control, compared to two spring applications.

Timing of Proxy Applications for Poa Annua Seedhead Control

Timing of Proxy for Seedhead Suppression of Annual Bluegrass