Widespread Yellowing and eventual brownin, dying and leaf drop- outdoor girlies-HELP!

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This was also posted on the Marijuana Plant Problems Forum. Sorry if I'm annoying anyone by posting the same "call for help" on 2 different forums...I was just hoping that more people will notice this post:


Hey Kind Peeps!
Any Help would be much appreciated:

I just hiked out to my 5 girls to discover widspread yellowing and eventual "browning" and dying/ leaf drop of many of the fan leaves, and some of the smaller ones. Overall the plants are also light green in color.

My expected frost/ harvest date is between 4-6 weeks away. Perhaps the problem is a nitrogen deficiency or something else entirely, like a potassium deficiency, salt build up, ph problem? I read up on the "Sticky: Read First.." section at the top of this forum and noticed this about nitrogen dificiencies:

"Plants will exhibit lack of vigor, slow growth and will be weak and stunted. Quality and yield will be significantly reduced. Older leaves become yellow (chlorotic) from lack of chlorophyll. Deficient plants will exhibit uniform light green to yellow on older leaves, these leaves may die and drop. Leaf margins will not curled up noticeably"

So, if it is a nitrogen deficiency, but too late in the game to worry about it or do anything about it, then that's cool.

And if I can do something about it, then that's cool too. Everything is 100% organice and do have several organic fertilizer options on hand.

A few other details: they well established in the ground, get full sun, and have had lower than normal rainfall recently. The have been getting fed ever 2-3 weeks with a combination (some but not all of the following listed things every time) of properly diluted fish emulsion, liquid seaweed, mollasses, bat guano, peruvian seabird guano and epsom salts. The last time I visited them, last week, I gave them each a combo of the fish, seaweed epsom salt and molasses mixed in "recommended" ratios with 3/4 gallons of water (each).

Only one of the plants is really coming along nicely as it is getting very sticky and buds are bigger and came earlier.

The pics are on top.

So what do ya'll think, is there anything I can do to help these ladies? I'm planning on visiting them again within the next 2 days. I can potentially take photos of the plants themselves, though I pruned off all of the worst of the leaves--the ones that were browning/ dead or dying, but left most of the yellow ones that didn't have any major discoloration besides the obvious widespread yellow.

Once again any and all help/ feedback/ recommendations would be much appreciated! Ahead of time, thank you so much for you time and attention.
-Dehlia

i would add some 20-20-20 fert inbetween feedings ofyour budding fert..sounds like they mite be getting to much of one thing and not enuf of the other...that fert will give you plenty of nitro to see if they pick up any in color..and that seems like i super mix you got going there...i try not to get into all that additives and stick with a reg veg fert and then with a basic bloom fert,,recently trying molases to spice up the taste but thats about it and mine always seem to do pretty good...even upside down lol check out my profile..good luck and i will check back when ya get some pics up..very hard to say without pics,,

Mine are doin the same thing. I wonder if when it starts flowering the older leaves start to die.

Some strains seem to do that during budding and i would not worry about it unless all the leaves are becoming yellow. You also mentioned dry weather and i have certainly seen plants do that if they are allowed to get too dry. A lot of plants (not just pot) will drop their older leaves after experiencing drought stress. Either way just take good care of them and they will reward your efforts come fall. Best of luck
Slart

Thanx for the reassurance. It's raining now and is forecasted to contiune into the beginning of the week, so I will revist these ladies and cosider feeding them again once the rain has subsided. Thinking just to go with mollasses (1TBS/ 2 Gallons H2O), and one or both of Neptune's Harvest Hydrolized Fish (2-4-1) (1 oz./ 1 Gal. H2O) and SeaCom PGR (0-4-4) (1 1/2 teaspoons/ 1 Gallon H2O).
http://www.johnnyseeds.com/c-216-fertilizer-and-plant-foods.aspx

I've considered the Fox Farm fertilizers, but not sure if they are actually organic or not.

Any suggestions on the use of the above listed fertilizers? I still intend to get some pics of the girls in question. Thanx again.
-d