Virus of pumpkin
Figure 1. This pumpkin tested positive for Watermelon mosaic virus 2 and zucchini mosaic virus, both potyviruses. Note the sunken, gray, mostly circular lesions. 
Figure 2. Close up of pumpkin in figure 1. 
Figure 3. Potyvirus on pumpkin. 
Figure 4. Potyvirus on pumpkin. 
Figure 5. Pumpkins affected by papaya ringspot virus, a potyvirus. 
Figure 6. Pumpkins affected by papaya ringspot virus, a potyvirus. 
Figure 7. Pumpkin leaf with a potyvirus. 
Figure 8. Pumpkin leaf with a potyvirus. 
Figure 9. Pumpkin leaf with a potyvirus.