It's either nutes that burned the leaves,from the foliar feeding,or it spider mites.Examine the underside of the leaves,with a magnifiying glass.You'll see them if it's mites! I hope not! They suck the life right out of a crop! You can control them! There are alot of good posts about mites.

Ga Grown
GaGrown Reviewed by GaGrown on . need a little advice on plant problem.? plants are still yellow at the bottom, on just about every single one of my plants.. looks like the leaf's burnt to the inside on each one.. i'm worried about that but not all too much, b/c the top growth is coming in.. i do though have 1 plant that is browning in small speckles on sets of leaf's.. real weird, when i originally saw it about 5 days ago, thought it was some dirt that got on the leaf, and i tried to brush it off and felt how dry that leaf was and found out it wasnt coming Rating: 5