Goodloe, I get some early blight at some point in the season every year. Like you, I just prune off the affected leaves. And never found the fruit to be affected by it. If it gets into the stems it can be bad though, and take down a plant before its day. I dip my pruners in bleach for all the big cuts I have to make, and since I started doing that, they don't get infected with anything.
Well I had my education for the day, - all I need to know about Daconil.
https://en.wikipedia.org/wiki/Chlorothalonil
There's always some side effect of the chemical products that makes me happier to carry on without the stuff.
Harmful to honeybees.... probable carcinogen (to kidney) in long term exposures... main breakdown product is 30 X more toxic and persists for longer in the environment...
Seriously, all things considered I'm starting to think of Early Blight as a lovely thing by comparison.
EB.. no prob! Bring it on... I'll take it.
