US (FL): Citrus could face new threat

Growers and scientists don't yet know how serious a problem fungal disease poses. One can't blame Florida citrus growers for feeling they're in the cross hairs for every citrus disease on the planet. The U.S. Department of Agriculture last month confirmed the first Florida cases of a fungal disease called sweet orange scab. It was on a grapefruit tree in a North Lakeland campground and on residential citrus trees in Sarasota and Broward counties. The scab disease has not surfaced yet in a commercial grove in Florida.