TZ- I'm not sure which one I want

All I know is that I think I might be getting some blight on two of my tomato plants. We have been having heavy, heavy rain storms come thru with cool, cloudy, damp days with not alot of sunshine. I want to rid this nasty stuff before it takes a hold on my plants.
I have removed the lower leaves/stems of the plants in question (which I should have done while planting them in their containers, but didn't at time) and have applied a milk solution to the remaining plant. The blight doesnt not look like it is spreading but it doesnt look like it is going away. Just when the plants dry out here comes the rain again...........

Learning as I go and surprising myself when it all comes together......