Gummy stem blight of Watermelon
![Gummy stem blight causes dark, amorphous, necrotic lesions on watermelon leaves.](https://vegcropshotline.org/wp-content/uploads/2021/01/IMG_0728-300x225.jpg)
Figure 1. Gummy stem blight causes dark, amorphous, necrotic lesions on watermelon leaves.
![Gummy stem blight lesions on watermelon leaves sometimes have a ring-like structure.](https://vegcropshotline.org/wp-content/uploads/2021/01/IMG_20200827_154159-225x300.jpg)
Figure 2. Gummy stem blight lesions on watermelon leaves sometimes have a ring-like structure.
![Underside of a watermelon leaf with a gummy stem blight lesion.](https://vegcropshotline.org/wp-content/uploads/2021/01/IMG_20200827_154208-225x300.jpg)
Figure 3. Underside of a watermelon leaf with a gummy stem blight lesion.
![Large gummy stem blight lesion along the midrib of a watermelon leaf](https://vegcropshotline.org/wp-content/uploads/2021/01/36329994516_22ba1e78ce_o-169x300.jpg)
Figure 4. Large gummy stem blight lesion along the midrib of a watermelon leaf
![Close up of gummy stem blight lesions on a watermelon leaf, one lesion with a shot-hole.](https://vegcropshotline.org/wp-content/uploads/2021/01/PICT0003-300x225.jpg)
Figure 5. Close up of gummy stem blight lesions on a watermelon leaf, one lesion with a shot-hole.
![Lesion of gummy stem blight on a watermelon leaf petiole.](https://vegcropshotline.org/wp-content/uploads/2021/01/IMG_0736-300x225.jpg)
Figure 6. Lesion of gummy stem blight on a watermelon leaf petiole.
![Lesion of gummy stem blight on a watermelon stem. The brown ooze or gum does not always occur in association with this disease and many other diseases and injuries to the stem may cause such an ooze.](https://vegcropshotline.org/wp-content/uploads/2021/01/gummy-stem-300x225.jpg)
Figure 7. Lesion of gummy stem blight on a watermelon stem. The brown ooze or gum does not always occur in association with this disease and many other diseases and injuries to the stem may cause such an ooze.
![Fruiting bodies, pycnidia, on a watermelon leaf petiole.](https://vegcropshotline.org/wp-content/uploads/2021/01/PICT0005-300x225.jpg)
Figure 8. Fruiting bodies, pycnidia, on a watermelon leaf petiole.
![A field of watermelon with a severe outbreak of gummy stem blight manifested by defoliation and numerous lesions.](https://vegcropshotline.org/wp-content/uploads/2021/01/PICT0024-300x225.jpg)
Figure 9. A field of watermelon with a severe outbreak of gummy stem blight manifested by defoliation and numerous lesions.