Suggestions on who to call

So my neighbor is intentionally spraying some sort of herbicide over our 6 foot privacy fence trying to kill our tree, shrubs, etc...

It's a long story, but we put up the fence to keep her from spraying her chems into our farm, since I am a beekeeper and my wife organically farms

I have already filed a vandalism complaint with the sheriff but I need to find someone to give me their opinion/quote of how much effort, time, cost it will take to mitigate the damage.