Dr. Barbara Shew, Peanut Extension Specialist
Heavy rain from Irene, wet vines, and the recent cool nights make ideal conditions for Sclerotinia blight. Today (Aug 31), all reporting weather stations in North Carolina are advising sprays and indicating high to very risk of Sclerotinia blight. Conditions will remain highly favorable for Sclerotinia blight for at least the next 5-7 days.
Make sure that fields with a history of Sclerotinia blight are protected. The last effective spray date for today is August 10. This accounts for 3 weeks of protection following a fungicide application. Fields that have not been sprayed since August 10 are not protected. Read more...