Our last two beefsteak plants (Bush Goliath) are just about done dying. Don’t know if it was a blight, or just the heat here west of Tucson. We rigged shade cloth this year, but the temps at our place have been 105-112 highs for about two weeks now. The hose water comes out warm, too, which I’m sure doesn’t help.
Just run the hose a bit before watering.