One way to help get rid of it is to bake the dirt with a black tarp. Pin it down over the dirt and let the sun bake it in the spring. You will know when it is done because there will be lots of germinated, sun deprived plants that are almost dead underneath. This saves on weeds, because the above plants are weed seeds that have germinated, and it helps take out some of the F. Wilt. This is what my gardening book said to do. I had F. Wilt last year, and no where else to have my garden, so I had to get rid of it if I could. To be on the safe side, I planted Rutger Tomatoes in another end of the garden and had perfect luck. No wilt this year on my melon vines, or tomatoes! Good luck!