Pre-emergent for mulch beds

[Iowa Seeder]

What type of pre-emergent can I use on mulch around tree's and flower beds? Would Prowl herbicide work?:confused:

[indyturf]

I like snapshot and spot-treat with round-up when needed.

[ArizPestWeed]

This has been asked a million times .
You will find all 1 million if you do a search