Comparison of Velocity* Rates with Multiple Applications for Poa annua Control in Turf

Abstract

Velocity at 40 gm a.i./A was more active than 20 gm a.i./A which was more active than 10 gm a.i./A. Velocity at 40 gm a.i./A consistently gave better than 74% Poa control but less than commercially acceptable levels. Velocity at 20 gm a.i./A gave between 50 to less than 70% control. Velocity at 10 gm a.i./A was marginally active against Poa giving less than 60% control.