Steve writes
We recommend carefully reading the product label for Prowl H2O Herbicide and the MSMA product label you're intending to use to determine if the two products can be tank mixed and suitable for your application as MSMA is limited in where it can be applied. If so, it is also recommended to do a compatibility test first and apply the mixture to a small area before doing the entire application.
Answer last updated on: 06/23/2021