Peanuts- White Mold Fungicides are still very important as soon as you can get in the field. From Dr. Bob Kemerait on white mold and leaf spot ““Big Gun” white mold materials almost always go out at 60 and 90 days after planting; a grower’s BEST choice of fungicides at 75 days and after 90 days depends on A) leaf spot concerns and B)!whether or not white mold is contained. If it is active but contained, fungicides like tebuconazole and azoxystrobin (less expensive) + leaf spot fungicide are likely appropriate to further contain the Disease. Where white mold is on a “jail break” it is prudent to make use of a more aggressive (and costly) fungicide.” In regards to using sulfur for management peanut leaf spot Kemerait said “growers wanting to save money and use sulfur for management of peanut leaf spot (when mixed with additional fungicides like azoxy and teb and Umbra and Excalia) MUST make use of “Culbreath Approved Products”. The CAP products are these and only these- Microthiol 80W, Drexel Sulfur 80W, Drexel Suffa 6F, Optimas Sulfur, TechnoS 90W, Accodial 80WG.
Cotton– CLRDV is still very much a thing. Although easily misidentified, a nutrient deficiency looks similar. See the pic below.
Soybeans- Interveinal discoloration (chlorosis) could be due to – nutritional deficiency, disease pressure, certain fungicides to name a few. In the leaf picture attached, it is believed to be nutritional deficiency. Other soybean issues are nematodes. Nothing to do about them once the furrow is closed but think about what needs to be done next year. See the attached picture of boogered up roots on soybeans by rootknot nematodes.