What is killing my Cukes? I haven't seen any bugs but the plants are completely wilting.
give us a few clues -- in pot or ground; how managed as to water & fert, and much more
Images of plant overall could help us understand the situation.
Hi - growing in large pots, and I have never ever had a problem before. the leaves are wilted, turning yellow and the stems are dying. I have been very careful about watering and fertilizing - organic fertilizer, lime, and compost. I have removed one stem that was literally rotten. I will try and send a photo (not a techie!). I have always grown them in pots. They are in full sun.
Sounds like it could be bacterial wilt transmitted by cuke beetles, even though you have not seen them. Pics would help though.
Mine are doing the same thing, I have the bush type plant that doesn't need a trellis. I think next year I'm going to get the vine type and put them on a trellis.
Most likely it is what howelbana said -- bacterial wilt transmitted by cucumber beetles.
Or insufficient water? Can't say without images.
It sounds like wilt to me too, especially since the vines are affected. Have you seen cucumber beetles? They look like lady bugs-well, they look like ugly lady bugs rather than the regular cute ones:-)
Sorry about your plants. I know that's no fun.
Same thing happened to my cucumbers.
Turned out to be Squash Vine Borer.
Here is a link that might be useful: DFW Gardener
I think the stem borer season is here. I have seen them on my cucurbit family too. I have sprayed them but not sure if it will prevent the death.
In my experience it is rare to get squash vine borers on cukes, but it can happen. Cucumber bacterial wilt, on the other hand, is inevitable in my climate. I grow only resistant varieties, and still see telltale signs from time to time.
I think I found the problem. I found a critter on them which explains everything. Not sure if the problem is resolved.I sprayed and removed stems but not sure if it's out of the woods.