bacterial wilt of Cantaloupe
Bacterial Wilt
Figure 1. The wilted and collapsed area on the margin of this leaf is due to bacterial wilt of cantaloupe. Note also the areas of the leaf eaten by cucumber beetles. 
Figure 2. Cucumber beetles have eaten this cantaloupe leaf. If insect frass enters the eaten area, bacterial wilt may result. 
Figure 3. Quick field test for possible bacterial wilt. Stringy, viscous sap may indicate presence of E. tracheiphila, causal pathogen of bacterial wilt. 
Figure 4. General wilt of cantaloupe caused by bacterial wilt.