Seashore Paspalum Growth Regulation with Flucarbazone‐Sodium

ABSTRACT Seashore paspalum (SP) has desirable qualities for golf course turf, but prolific seedhead production is difficult to manage with growth regulators currently available. Flucarbazone‐sodium (FS) is currently used in turfgrass seed production for weed control, but also has potential for growth regulation of tolerant species. Experiments were conducted to evaluate (i) efficacy of FS alone or with trinexapac‐ethyl (TE) for SP growth regulation, and (i) physiological behavior of FS in SP. In field experiments, FS at 30 and 60 g a.i. ha–1 3 wk–1 provided good (80–89%) to excellent (≥90%) seedhead control on 8 of 9 evaluations, but 15 g ha–1 provided poor control (