![Katherine Stevenson, a plant pathologist, has been part of the University of Georgia since 1992.](https://secure.caes.uga.edu/news/multimedia/images/1315/Katherine-Stevenson-low-res.jpg)
Fungicide resistance
Gummy stem blight can be a tough foe for watermelon farmers to tackle. With the ability to cause lesions on leaves and turn stems into gooey mush, the plant disease can cripple watermelon production.