More Pics/Texts to/from Dr. Bob Kemerait’s phone:
Note the large, circular sunken lesion at the top of the boll; note the new, dark green water-soaked lesion starting at the bottom of the boll. The bacteria that cause this disease are EASILY spread by rain and irrigation splash.
Excellent example of some damage from root knot nematodes on peanut pods; note the “warts”. Also note that MOST of the root is covered with beneficial Rhizobium nodules, NOT root knot galling. But there are a few galls.
Note the lines of black, erumpent (I use that word every chance I get) pycnidia (asexual fruiting structures) running along the dead stem. CLASSIC symptomology, disease is typically of minor importance.
Late leaf spot (note chocolate sporulation on UNDERSIDE of leaf). Weather and growth stage are perfect for this disease to spread.
This is most likely leaf scorch caused by fungal pathogen Leptosphaerulina crassiasca. (Early in the season a similar symptom is associated with use of Thimet). Leaf scorch is almost always cosmetic.