Help with diagnosis

mjr99 · #1 (**permalink**) 07-21-2009, 07:17 PM

The spots showed up three days ago on one fan leaf and today 3 or 4 fan leafs have been hit and are about dead. Temps are good. Light could be a lil close. Im only watering every three days. Using only 1/2 strength nutes. Havent checked ph because last grow went off smoothly. thanks.

What type of medium; soil or hydro? soil
What brand and type of soil? promix/ blue bag
Indoors or outdoors? indoors
What strain? g13 thai super skunk fem
How old are the plants? 3 weeks
What type of lights and how many watts? 400 hps air cooled
How far from the lights? 8"
What is your watering frequency and source of water? every 3 days. tap
What, how much and when was it fed? NPK? using ff feeding schedule
What is the medium/runoff pH and PPM if in hydro?
What are the temps and humidity in the room? 88f, 55hum
What size pots?2.5 gallon
Any bugs? Look real close.no
Any other pertinent info?all my other plants are thriving. only did a 10 day veg.

gr1dlock · #2 (**permalink**) 07-21-2009, 10:02 PM

Hey, it looks as though you have a major magnesium deficiency, I haven't experienced this myself but it definately looks like a mag def. I here that epson salt is the best thing to bring the magnesium level back up to normal.

darookie2000 · #3 (**permalink**) 07-21-2009, 11:16 PM

FF has cal/mag issues (mag most prominently). Check the pH first because FF made my soil too acidic and caused bad lockout and mag problems.

Darkhosis · #4 (**permalink**) 07-21-2009, 11:20 PM

I'm just thankful this isn't another medical diagnoses thread.

Looks like severe nute burns. I'd chill on the nutes and flush that shit out until the plant recovers.

Only other thing I see is using tap water. Need to let it sit out for 24 hours to let the chlorine evaporate then skim the top off before using doesn't hurt. Or buy a water filter.

White_Widow_Man · #5 (**permalink**) 07-21-2009, 11:24 PM

Quote:

Originally Posted by darookie2000

FF has cal/mag issues (mag most prominently). Check the pH first because FF made my soil too acidic and caused bad lockout and mag problems.

Ya really think .. .

mjr99 · #6 (**permalink**) 07-22-2009, 04:52 AM

i guess ill flush tonight when they wake up and go from there. i bought some epsom salt today too just in case. im wondering if i should go ahead and throw a little in there just for the hell of it?

darookie2000 · #7 (**permalink**) 07-22-2009, 06:42 AM

Quote:

Originally Posted by White_Widow_Man

Ya really think .. .

lol, sup man

darookie2000 · #8 (**permalink**) 07-22-2009, 06:46 AM

Quote:

Originally Posted by mjr99

i guess ill flush tonight when they wake up and go from there. i bought some epsom salt today too just in case. im wondering if i should go ahead and throw a little in there just for the hell of it?

Definitely don't put anything in there until you've flushed and checked the pH. It will make the problems even worse. I didn't realize that you were feeding full strength FF, try half. Are you feeding every other watering or every one?

gr1dlock · #9 (**permalink**) 07-22-2009, 01:37 PM

flush the hell out of her before you add the epsom salt, you might find she could pick up after the flush however keep a very close eye on things and after you have flushed if things don't start to get better throw in the epsom.

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#1 (permalink) 07-21-2009, 07:17 PM
mjr99 Registered User Join Date: Mar 2009 Posts: 165	Help with diagnosis The spots showed up three days ago on one fan leaf and today 3 or 4 fan leafs have been hit and are about dead. Temps are good. Light could be a lil close. Im only watering every three days. Using only 1/2 strength nutes. Havent checked ph because last grow went off smoothly. thanks. What type of medium; soil or hydro? soil What brand and type of soil? promix/ blue bag Indoors or outdoors? indoors What strain? g13 thai super skunk fem How old are the plants? 3 weeks What type of lights and how many watts? 400 hps air cooled How far from the lights? 8" What is your watering frequency and source of water? every 3 days. tap What, how much and when was it fed? NPK? using ff feeding schedule What is the medium/runoff pH and PPM if in hydro? What are the temps and humidity in the room? 88f, 55hum What size pots?2.5 gallon Any bugs? Look real close.no Any other pertinent info?all my other plants are thriving. only did a 10 day veg. Last edited by mjr99; 07-21-2009 at 07:33 PM.

#2 (permalink) 07-21-2009, 10:02 PM
gr1dlock Registered User Join Date: Jun 2009 Posts: 58	Re: Help with diagnosis Hey, it looks as though you have a major magnesium deficiency, I haven't experienced this myself but it definately looks like a mag def. I here that epson salt is the best thing to bring the magnesium level back up to normal.

#3 (permalink) 07-21-2009, 11:16 PM
darookie2000 Registered User Join Date: Mar 2009 Posts: 914	Re: Help with diagnosis FF has cal/mag issues (mag most prominently). Check the pH first because FF made my soil too acidic and caused bad lockout and mag problems.

#4 (permalink) 07-21-2009, 11:20 PM
Darkhosis Smoker of herb. Join Date: Jun 2009 Location: Bob Marley's Grave Posts: 615	Re: Help with diagnosis I'm just thankful this isn't another medical diagnoses thread. Looks like severe nute burns. I'd chill on the nutes and flush that shit out until the plant recovers. Only other thing I see is using tap water. Need to let it sit out for 24 hours to let the chlorine evaporate then skim the top off before using doesn't hurt. Or buy a water filter. __________________ Disclaimer: Everything posted by this account is pure fiction and the ramblings of a maniac.

#6 (permalink) 07-22-2009, 04:52 AM
mjr99 Registered User Join Date: Mar 2009 Posts: 165	Re: Help with diagnosis i guess ill flush tonight when they wake up and go from there. i bought some epsom salt today too just in case. im wondering if i should go ahead and throw a little in there just for the hell of it?

#9 (permalink) 07-22-2009, 01:37 PM
gr1dlock Registered User Join Date: Jun 2009 Posts: 58	Re: Help with diagnosis flush the hell out of her before you add the epsom salt, you might find she could pick up after the flush however keep a very close eye on things and after you have flushed if things don't start to get better throw in the epsom.

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