Well, I've managed to get 3 gallons of hybrid blackberries without getting one chigger. We have them planted in the fence row and mow on both sides; they are huge this year. Have had plenty of rain and that helped lots. We used lime on the lawn and around the berries to prevent ticks and chiggers and it has worked.

Oh, one other thing, I asked Sweetie Pie to pick them for me. lol Haven't seen him scratching in tight places either.