By David G. Hallauer
The Oklahoma Department of Agriculture, Food and Forestry confirmed the presence of Sudden Oak Death, also referred to as SOD, in plants that passed through an Oklahoma nursery, Park Hill Plants, earlier this year.
This time of year, two common leaf-spot disease appear on tomato plants. Septoria leaf-spot and early blight. Brown spots on the leaves characterize both diseases. It is important to figure out which disease you have, so you can treat them accordingly.