Managing Early Blight on Tomatoes and Leaf Scorch on Iris/Daylilies

Two Different Problems, One Cultural Fix

Early blight on tomatoes shows target-like spots with concentric rings and yellow halos, starting low and moving up. Tip burn on iris and daylilies is usually moisture stress, not a pathogen.

Cultural Practices That Help Both

• Drip irrigation (2×/week) keeps foliage dry.
• Mulch prevents soil splash onto leaves.
• Remove diseased leaves promptly—don’t compost; burn or trash.
• Preventative fungicide (chlorothalonil) on tomatoes before symptoms appear.

Good garden hygiene and consistent moisture reduce both issues significantly.