[UrbanG]

I am growing peas for the 1st time this year (both in the garden and in pots)

They are all now showing white spots / patches on about 30% of their leaves.
I have tried to take a close up picture which I have added for referance.

Any ideas what it may be and if its going to cause problems?

[DD.]

This could simply be sun scald - where the sun's rays have been magnified through water droplets on the leave.

[Crystaltipps]

I've got this on my pea seedlings in my conservatory - and a number of greenflies sitting on them, so I think it's where they have been nibbled.