The main objectives of this project are:
Southern rust (Puccinia polysora) is one of two different rust diseases of corn impacting large geographical areas in the Southern US and the Midwest. The other rust disease of corn is common rust (Puccinia sorghi). Since nearly every corn hybrid grown is susceptible to southern rust, yield reductions can occur if infection takes place early enough in the season. Late-planted corn fields are at the highest risk for yield losses associated with southern rust. Warm and humid conditions are most favorable for the southern rust pathogen infection and disease spread. F
oliar fungicides are the only management tool currently available.
Crop-Pest Programs >