The Plague ?????
I get this every year weather it's dry, or hot & humid, plus everything in between: Please view my Kodak Gallery to view the fifth photo (the first four are for the "weed site's forum") The url is long so you'll want to copy & paste it. Please give it a look-see.
When you get to the Weed Album if you click on the photo it will enlarge for your inspection.
I even went to our garden center & they don't know; although I'll bet it's common and I need a cure/treatment for the little babies.
I keep removing all the brown/yellow/spotted ones and some of the plants are almost bare; many are rebloomers.
If it was borers I think I understand, that I'd see little chomp-chomp bites down the leaves. (leafs ????)
What to do? HELP is a minor word of description. Hope may be on the way with ya'll to advise. You'd put my nightmare to rest and save me lots of money; I will be Most Grateful.