black oily spots on leaves

today i noticed one of my ladies had black oily spots on 3 or 4 leaves. but its only on this plant. anyone know what it is? i dont have any pics right now, camera got killed.

All I can think of is mole, or picante.

ok now im hella pist. today i went to look at my bitches and 3 of them have black spots on them. and the leafs with black spot are kinda crispy. the only thing i can think of is that the leafs got burned. can this happen if the leaves got burned or too hot?? plz help playas

Sorry I can't see any black spots from those pics. Last pic the leaves look yellow. Hmm...maybe in pic #2 top leaf on right.

Mites, mildew? Unless something dripped on them.

OK, ... what are you using for nutrients? How often are you watering? Are you using a moisture meter to guide your watering? By the looks of the down-curled leaves and the crispy leaves, it looks like over fertilizing to me. But, what do I know?

Vi

i was thinking that its not over nuting because i have 5 other plants that look sexy ass hell with no signs of over fertilizing. im thinkin it was the light cuz i had the 400watter like 4-5 inches from the top of the plants with a fan on the light.

im using 1 teaspoon per galllon of foxfarm growbig 6-4-4. im only water when i have to, like every 3-4 days. yea i got a moisture meter. oh and im also using peroxide and superthrive.

They look over ferted to me too. But yeah the light can do it too. Put the 400 about a foot away.

Yeah, it's light burn. I would keep a 400w 15 inches above the tops. If you have an air-cooled hood w/glass, it can be closer.

And do you mix that stuff in every watering? I would feed every 3rd watering or so.

HTH

The problem is the light being too close. 18" is about right for a 400 watter.

Vi

thanks fellas
yea it was light burn. but now i have the light 10' away and the plants arent getting burned. i need to get some pics on here. my bitches are growin hella quick.

fuck mothafuckin shit! im hella pist and really feel like hurting someone!!!!!! god damn it!

everyday my plants are gettin worser and worser! they keep gettin black spots. plz dont fuckin tell me im overwatering or over fuckin nuting cuz ill get pist. i havent used nutes in like 3 fuckin weeks. and i havent water in 1 week. my hygrometer says its still wet. WHAT THE FUCK IS GOIN ON WITH MY MOTHAFUCKIN PLANTS? i think i might commit suicide very soon...

Look at this. Anything look familiar?

Grow Marijuana FAQ, Cannabis cultivation - marijuana growing tips & photos

im too fuckin pist to even care now

Thanks for the link (it answered a lot of questions I had)