Horse farm labor needed (Roanoke, VA)

I am needing intermittent help on a horse farm doing various tasks.
Would probably need someone eventually for a couple hours per day, 2-3 days per week, but for now I have a bunch of things that could be done on and off.
Currently need things like spraying, weed whacking, branch trimming, moving lumber, general repairs, etc.
Eventually will need help maintaining pastures and helping care for horses, so experience handling horses is a plus.
Pay is $16/hr, times and days are flexible.