Remove withered cucumbers and keep watering
Continue to look out for withered ends on cucumbers. This will be blossom end rot, caused by lack of calcium, and is easily rectified. There is rarely a need to add more fertiliser, unless the plant is in a pot or growing bag.
First, pick off the affected fruit. For perfect fruit, be strict about watering consistently, and make sure that there is a good flow of air in the greenhouse. This
