To compare the crop effect of two formulations of trifluralin – Triflur 480 (480 g/L active ingredient) and Crew (330 g/L active ingredient with slow release formulation). The work also included a demonstration of crop effect of trifluralin under dry- and wet sowing conditions.

The use of trifluralin as part of an integrated herbicide management program for the control of Group A resistant annual ryegrass populations has increased dramatically over the past decade. The requirement of incorporating Triflur 480 within 4 hours of application has imposed management issues during the busy sowing period, however, the advent of Crew (a slow release trifluralin formulation) offers greater management flexibility with an incorporation period of 24–48 hours.