Bacterial blight has been reported in many oat fields in south-central and south-eastern Manitoba.
"Oats are a little more susceptible to it than your other cereal crops, although it can occur across all of them," said Manitoba Agriculture Plant Pathologist Holly Derksen. "Typically it's just in the lower canopy. It likes a little bit of moisture and cooler temperatures. It can spread pretty easily in the field, especially if there's traffic."
Derksen notes typically the plants grow out of bacterial blight and it is not normally a yield limiting issue. It can't be controlled with a fungicide since it is a bacterial disease.
She adds environmental stress symptoms, such as leaf tip scorching, have also been reported in oats.
Source : Steinbachonline