Kick starting a plant?

Hi guys,

My courgette plants and runner beans have been under watered due to a holiday, and the beans have started to shrivel and the baby stage and go brown, and the courgettes have started to rot on the plant.

Is there any advice for kicking them back in to action?

The plants themselves look healthy enough

Give a foliar feed. It gives far quicker results than feeding the roots.

Totty