I set out about 75 tomatoes each year. I plant hybrids because where I live the blight just about wipes out anything else. I stack my cages and leave them alone until the next planting season. I haven't lost a tomato in years to disease. Last year was a super wet one for us as well. I had trouble with a fungus that almost defoliated my tomatoes before I realized what was happening. It didn't hurt my yield but did make sun blistering a problem. My hybrid of choice for the hot humid weather in Louisiana is Bella Rosa.