I just went thru farm bureau insurance. Not the cheapest g/l policy but I am insured for 300,000/600,000 for 360/year. The real bonus is next year when I start applying pesticides there is no additional charge. Most companies I called wouldn't even insure me for pesticides. My agent said a farm bureau kinda has too insure people for pesticides for obvious reasons. They were much cheaper than anyone else for comercial auto insurance though.
My entire policy (g/l plus auto plus 5000 equip plus trailer) is around 1,200/year. I had quotes for just g/l higher than that.