I believe this has been hashed out in the past in this forum, but I did some searches and couldn't find the specific answers I was looking for. I have a few questions about controlling weeds in chufa patches. Also looking for best overall practices that I can apply every year when planting chufa.

1. When is the best time to apply a pre-emergent (before planting, after planting, etc) and what is the best one to use? I've used Treflan in the past, but I can't remember if I applied it before or after planting, and whether it was done right at planting or several weeks before or after.

2. I've read that Milestone is an effective post-emergent herbicide, but I've never used it. Does it kill most broadleafs?

3. Is Poast Plus the best grass specific herbicide?

4. Is there a post-emergent "mix" that is recommended to handle both broadleaf and grasses?

5. Do any of you use both pre-emergent and post-emergent, or is it typically best to use one or the other?

Thank you in advance for the advice. Trying to plan my fields for next year.