BT doesnt burn but they do say dont spray more than 3 times in 2 weeks for the brand I used. I have burned plants with the Safer Insecticidal soap before. But I also didnt honor the rules they layed down either.
From the pics that I found online. I would be inclined to say that it is TEV, unfortunately based on the pics online, I'm fully blown.
So now what, ditch the plant?
http://wholeleaftobaccollc.com/foru...ion-2013-Nursery&p=42909&viewfull=1#post42909
if I did that right, that should be the link to post #164 from my thread which has pictures of blowing sand damage
ne3go's Grow Blog (from Greece) also has photos of blown sand damage.