Apply Bactericide/Fungicide Now
A strong thunderstorm with high winds and hail crossed through parts of the Treasure Valley in southwest Idaho Sunday evening. According to the National Weather Service, it went from Nyssa to the Fruitland and Payette areas.
Hail-damaged onions will benefit from a protective bactericide/fungicide application. Hail can create small and large wounds that leave plants extremely vulnerable to diseases.
As soon as you can get on the field, apply a copper-containing protectant spray. Copper protects against bacterial and fungal diseases so it is a better option than fungicides that do not contain copper. This will help prevent infections while hail wounds heal. The sooner after any damage occurs, the better.
