A photo will help with identification. Also, how many leaves are being affected, is it scattered all over the plant or in a specific section, and is the plant otherwise healthy?

Might be on the vanguard of the wave of blight for the season. But pix for ID are required.

Dan

This link, http://ohioline.osu.edu/hyg-fact/3000/3101.html , takes you to pictures of Early Blight and the attached link takes you to pictures of Late Blight.

Here is a link that might be useful: Photos of Late Blight

sorry, give me a couple days. the only camera i have at the moment is the one on my phone, the card i bought to transfer the pics to my pc is defective, so i'll exchange it wednesday and hopefully have pics up. but from the links provided by kimmsr, thanks by the way, i don't have blight symptoms.

http://vegetablemdonline.ppath.cornell.edu/diagnostickeys/TomLeaf/TomLeafKey.html

if you follow this link and scroll down to the 'Leaf Symptoms" section the symptoms I have matched best by picture is septoria leaf spot and bacterial spot. but, lemme get a pic in a couple days.

ok, i got pics.

here they are.

[IMG]http://i50.photobucket.com/albums/f306/west9491/0623101808.jpg[/IMG]
[IMG]http://i50.photobucket.com/albums/f306/west9491/0623101807a.jpg[/IMG]
{{gwi:143867}}

so i bought some garden dust with copper sulfate, is this stuff organic. it says it treats leaf septoria, so how much should i use it?