My pony has a tendency to not pick up her hooves, which can cause a bit of problem when trotting and cantering in a wet arena.
Is there anythign else besides trotting poles I can use to try encourage her? She's not a young pony btw.
Usually they drag their hooves when they're not going forward. Get a few lessons to work on getting her off your leg and powering off her hind legs. Generally this will encourage a horse to lift it's hooves higher thus avoiding the tripping.