I've personally never foliar feed, but occasionally when I use sprays to prevent pests I'll notice spots on the leaves where the liquid formed a drop then later evaporated.

The plants look possibly a little over watered. If it's humid on top of the foliar feed it could be PM, but I can't really be certain. There's more helpfull folk on this site, hope they show up! :thumbsup:
canniwhatsis Reviewed by canniwhatsis on . First time grower needing some help please. Hello. This is my first grow. im using 400 w Mh for veg and HPS for flowering in a 75x75x100 Budbox. Ive got Plagrow royal mix soil, mineral water with ph modified by malt vinegar to 6.5-6.7. They are a week old from the start of germination. And the light has been placed foot above them (from today, before i used florescent lights) Last night i turned off my lights at 11 to turn on to 5 with a timer and unfortunately it failed to work which in turn pissed me of incredibly. Anyways, in the Rating: 5