cucumbers

hi first year growing cukes had a few and fab they have been, but now further up the plant the growth of fruit is very slow and some look stunted and going a little yellow any reasons thx

Have they been watered enough/regularly?

As this is not the greenhouse thread, I assume they are outside ones that need pollinating; that could be an issue.

If they are in the ground then daily watering is probably too much and may also be a factor.

They shouldn't need more feeding, although many people advocate feeding them a weaker solution more often (e.g. half the recommended dose twice as often).