Leaf Spot and Sclerotinia Blight Advisories on August 30 Peanut Notes No. 226 2026

(Updated: Aug. 31, 2026, 11:19 a.m.)
Leaf Spot in the peanut canopy

Sclerotinia blight advisories for closed canopies are showing HIGH risk at all weather stations. If you have fields with a history of this disease, scout to see if it is present in 2026.

The last effective spray date for leaf spot ranged from August 14-16 across all weather stations. If you have sprayed since those dates, you are protected for now. We are seeing more and more leaf spot, so be diligent in your spray programs so you have healthy plants that will give you the greatest flexibility in when to dig. The highest yields and market grades are experienced when we dig at optimum maturity. Try not to let leaf spot disease dictate when you dig rather than pod maturity.