Yellow Spots On My Leaves

High all,

How often should you feed your plant once its into flowering stage, (this is the budding stage right). I have not feed this plant I just used Miracle grow potting soil and just tap water. She is 6 weeks into flowering stage with lots of buds and smells real good. Its a Lemon Haze plant. I have the plant indoors under two 400W HID lamps, with the humdity at 55% and room temp kept between 75-80. Here is a pick of my plant, I have yellow spots.

Any informatoin will be greatly appreciated.

Cheers

so whats the final verdict on these yellow spots? im noticing i have them as well

I got them too...I haven't fed her at all, but I think I will start using some Grow Big...
My plant is 3 weeks into VEG and I gave her molasses and now she's suffering the same thing...I PH'd the water but not after adding the molasses...Did I fuck up ???

My grow box went dark , for 35 min, Im 5 weeks in plants maybe 18" floreesent all , do you think they might stunt them

my friend has a auto russian #2 and i know it cant have any shortness in nutes,tho it has the same yellowing coming out in spots,so this makes me wonder if it is a deficiancy as i know they are fed plenty!! his plants are not far from being ready so in this case im hoping its just because the plant is useing the nutes elsewhere for budding, ANY IDEAS???? cheers

BUMP!!!!!!!
I have not had an issue I could not figure out in some time.... i have this problem too and it is bugging me

I have seen blight on tomato plants... this looks sort of similar, but not.
blight4_cleaned.jpgblight3_cleaned.jpgblight2_cleaned.jpgblight1_cleaned.jpg

Kind of looks like mold. Do you see any white? It turns yellow/brown when it start to eat the leaf.

Damn.... thread from the dead!!!!!!