Disease Risks- “You can follow Peanut Rx through our UGA Peanut Team production guide, you can follow Peanut Rx online at peanutrx.org, and you can follow Peanut Rx on the back of prescription fungicide program cards from various companies to include Syngenta, BASF, Bayer, FMC, Nichino, Valent, CORTEVA, and others. Planting date is a key risk component in management of tomato spotted wilt disease. It is also a component in risk to leaf spot diseases and white mold.
25 Years of peanut research in relation to tomato spotted wilt has shown that Thimet is the best option. Remember- if you apply other insecticides, it may kill the thrip, but it has already infected the plant with spotted wilt. If you’re not using Thimet, be sure to look at planting date and possibly variety.
Nematodes- Nematicides are only effective if applied at planting before the press wheels close the furrow. AgLogic and Counter 20G requires sufficient moisture to activate. With a bit of dry weather, take this into consideration. If root-knot nematodes are a problem, variety selection may be key. See the pictures below courtesy of Dr. Kemerait. You can see stunted and yellow plants in the first image and some nematode symptoms in the second picture of the root system.
As always give Cliff or Peyton a call with questions.