[cc]

Every sweet pepper in my greenhouse looks unwell.  Even the ones in pots. So 3 raised beds each has one sweet pepper in it all poorly brown leaves and minimal growth. All pot ones the same. One tomato plant the same (growth only). Super marande (excuse the spelling). All other tomato plants in raised beds and pots doing well. Early on I took two sweet peppers down to the conservatory they are doing very well. So folks why?
Also 2 of raised beds have cucumbers in both are doing better this year than any previous year.

[hasbeans]

Looks like spider mite or similar infestation to me.  Have a look around for webs or little orange dots.

[cc]

Looks like spider mite or similar infestation to me.  Have a look around for webs or little orange dots.

Would it only attack sweet peppers? Only one Tom's is doing badly although it is producing decent toms. Must admit have looked closely at the sweet peppers and seen nothing other than normal white fly and green fly all removed

[hasbeans]

Peppers and chillis seem more appetising than tomatoes to most critters in my experience and stuff like spider mites probably don't bother moving from a plant until they have decimated it.

[cc]

Most have decided to recover well at least put a bit of effort in.
Found some tiny reddish beastie on them (very few) but no webs. Spraying with normally soapy water, which as with green fly does nothing other than allow you to remove them without doing to much damage to the leaves.
I am not sure if I will get much, if any, ripe sweet peppers of them.