Lots of activity the past few weeks. Crops are up and we haven’t had any rain. Hopefully, that will change this weekend. Nutgrass continues to be a problem in certain areas. On peanuts, paraquat + basagran or storm + dual will help but remember that paraquat doesn’t need to go out on peanuts that are 28 days after cracking. For dryland peanut fields, I would be cautious using a paraquat mixture. Rain/irrigation is crucial to the plant’s recovery from paraquat injury. I’ve seen some crown rot in spots but nothing to start screaming about.
I’ve heard that Priaxor could be short this year. More than likely COVID related supply chain issues. Based upon peanut leaf spot work done by Dr. Albert Culbreath, sulfur as a mix-partner with fungicides like Umbra, Excalia, tebuconazole, azoxystrobin, and Headline has gained significant interest among growers. 1) Microthiol DispersS, Microthiol 80W, Drexel Sulfur 80W, Drexel Suffa 6F TechnoS 90W, and Accoidal 80WG have been tested and are recommended at 5 lb/A as mix partners and, in some specific situations, as low as 3 lb/A (not lower). 2) Sulfur formulations NOT mentioned here are NOT currently recommended either because they have not been tested for leaf spot control or because they were less effective. Also, conditions are favorable now for white mold, especially in fields with short rotation. Beginning a white-mold program early this year, even if only mixing tebuconazole with chlorothalonil on the first spray, maybe a good decision.
Thrips have been out working on cotton and peanuts pretty hard. I will say that the peanuts I’ve looked at with Thimet have not had as much thrip injury as others. Below is a cotton plant that has been hit hard with thrips. Under stress, the thrips can cause more damage. The faster the plant grows out, the faster it gets out of thrip damage potential. 3oz of Orthene is the best foliar option we have for thrips.
