garf_gw, bacterial leaf spot, I think.

Where on the plant are those leaves? Toward the top or toward the bottom?

This link may be of some help.

http://www.clemson.edu/extension/hgic/pests/plant_pests/veg_fruit/hgic2217.html

kimmq is kimmsr

Most were on the lower half of the plant or on the lone survivor of last years batch of plants thru a Miami summer.

Seems the Florida Ag Agent agrees with you.