I started an email discussion with Dan Anco, peanut pathologist at Clemson, about leaf scorch. Here is the image we discussed along with the discussion.

Anco:

Symptoms can overlap with leaf scorch and thimet burn, if thimet was applied and there are several places where it is more or less symmetrical, I tend to associate it with thimet; I would not be surprised if there was an association between the two, the leaf scorch fungus has been described as an effective secondary colonizer; leaf scorch can look just like that but is not obligated to symmetrical development.

Jordan comments to a text question about leaf scorch:

Chemical burn and not something to spray for. Leaf scorch is a secondary disease. The pathogen is opportunistic and no spray is needed. It only affects leaves that have some previous injury, in most cases.