[mason-dixon]

I have tomatoes spaced 18” by 24” and will be trained to an 8’ wire mesh. Question is to trim secondary stems or not. Or just trim lower (3’) ones for ventilation and then let upper ones produce more flowers/fruit?

Is there some “best way” for humid summers?

[Diana in Wisconsin]

"Is there some 'best way' for humid summers?"

Pruning the bottom 1/3 of the plant is a great idea. The 'blight' is in the soil and when soil is splashed onto the lower leaves from rain or watering, that's where the problem starts. A good layer of mulch helps, too.

And always pinch out the suckers at the crotch of the stems and the main trunk of the plant. That lets more air flow in, too.

Other than that, Prayer? LOL! ;)