pics Brown spots , thin leaves ???? Pics inside

[Redrum801]

I put a couple of plants out this weekend , last night I foliar fed them some neptunes harvest 1/4 strength . It was about 90 degrees today in NYC , when I got home I noticed some light brown spots on my 7 pot primo's leaves ?? When I touched the leaves they seemed kinda thin in those brown spots ? Also they don't look very green ? Maybe I didn't harden them off properly ? The other plants I first put out adjusted well after only a couple of days of hardening , maybe I rushed these out to soon ??

So is it sun scorch ? Some sort of fungus ? Something else i know nothing about, lol ... I don't have a clue what it might be , thanks in advance if you can tell me what it is and how to treat it ... Carlos

 

[dani8538]

Sun...

 

[DasBhut]

could be iron overdose, my passion fruit vines don't have enough so they're doing what yours is doing except turning white, too much iron is the same thing except the spots are brown instead of white

 

[TXCG]

+1 for sun scald. Plant should grow out of it no problem.

 

[Valleyman]

Thanks guys. I have the same look on a few of my potted plants as well. And it's been very sunny & hot the past few days up here in Connecticut. My other plants in the ground which are under black plastic mulched with some straw are looking good (no sun scald) and are starting to kick butt.