Cucumbers Look Poorly

[Dynamite]

I need help everyone as my Cucumber Telegraph Improved are looking poorly. The fruits have all turned yellow and look like they are dying. Photo below. What can it be? Very concerned,.

Regards...............Rob

[Potstubsdustbins]

Could be several things, 1 water logged roots unable to take up nutrients, 2 atmosphere not moist enough, a possibility in this dry weather.

If the compost is not to wet try watering the floor of the GH to produce moisture without damping off the plant.