State agriculture experts are asking citrus growers to lookout for sweet orange scab of citrus caused by a fungus and recently found on a satsuma tree in Orange, Texas, about 3.5 miles west of the Louisiana border. Previously, this disease had only been reported in South America. LSU AgCenter plant pathologist Don Ferrin says the disease isn't a big problem, but it affects growers' ability to sell the fruit because of the way it looks. It can be controlled with fungicides applied during and shortly after bloom.