Cucumber plants dying from middle up
Hi - I have 6 cucumber plants in the same location that have been doing fine until recently where 3 of them have basically died from the middle on up to the top. This is shown in the photo where the leaf in the middle of the shot is green yet all the leaves above it are completely dead, and the leaves below it are green. This first occurred in the middle of August so I pulled that plant out. Now two more are doing it. Any idea of what is going on here? They are getting plenty of water and the ones that aren't affected are doing fine and producing cucumbers.