fusarium wilt warriors

Hi,
 
I am looking for others who have battled fusarium wilt in giant pumpkins. Last year I lost 9 of 10 AG's to fusarium wilt. The year before I lost 4 of 10 to the same disease but I mistakenly thought it was bacterial wilt. The disease is entrenched in my soil and have no where else to really grow pumpkins. So I need to control it. After more research I have identified it as fusarium wilt. from my readings it seems as though it is a very though strain. It starts at the leaves at the end of the vine and slowly more in to the more mature leaves. The leaves are yellowed and eventually die and it leaves the plant stunted and usually kills it but sometimes a few vines will survive and produce small but normally shaped pumpkins. The fact that the fruit and leaves don't get speckled and splotched makes me think it isn't a virus. And the fact that the plant doesn't die immediately(usually takes a few weeks to over a month) Has anyone successfully defeated or at least contained this monster?
 
     So far the only weapons I have found to fight it are Root Shield, Soil Gaurd and mycorrhizal root booster. All these are beneficial funguses that will coat the root system and invigorate that plant as well as fight the disease bad fungus that causes the disease. Anyone with positive results with this. I took a look at the archives and it looks like Brad Walters is also fighting this disease. I have come across how well these products work for other members of the curcurbita family like watermelons and assorted squash but have found little empirical data pertaining to AG's.
 
Thanks for any help,
John
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