Final answer:
Annual broadleaved weeds are not the most troublesome for establishing turf; it is the perennial weeds that present a greater challenge due to their persistence and ability to regenerate from root systems.
Step-by-step explanation:
The statement that annual broadleaved weeds are the most troublesome for establishing turf is false. While it is true that annual weeds can cause problems due to their rapid growth and reproduction, especially after soil disturbance, such as tilling, the real issue in establishing turf typically comes from perennial weeds. Perennial weeds, like broadleaved weeds, have root systems that can survive over the winter and regenerate in the spring, making them more persistent and difficult to eradicate. In fact, cultural practices, like minimal tillage and proper timing of planting, are recommended to provide the least possible disturbance and reduce weed problems. Therefore, proper turf establishment often requires understanding and controlling perennial weeds rather than just focusing on annual broadleaved weeds.