leaf problem

[helly]

Hi, I have a massive problem with my pepper, the leaf has turned this yellowcolour and with spots on. i had greenfly trouble a few weeks ago I tried to squash them and spray with diluted washing up liquid and now this has happened with the leaf. Can anyone suggest recovery solution
cheers helen

[Capsid]

Are all the leaves like that?

[helly]

, about 20% of them.

[Capsid]

Are they like that at the bottom of the plant, if so this is normal.