Need some help

I have a friend who is in desparate need of some advice. He has 4 great looking plants that have all of a sudden started to develope yellow leaves with spots all over them. The spots are white in the center and have a burnt brown ring around them. I am having him email me some pics and hope to be able to attach them here. They are all grown outdoors. We have had a LOT of rain this summer so at first I thought they might be too wet. He has let them dry up until the point that you see leaf wilting. Then he watered with rain water and fertilizer. He is using the "Earth Juice" products as directed. Grow, Bloom, and catalyst.

I have been suspecting either a potassium or perhaps Magnesium. he has tried all remedies for those deficiencies without success. He removed all yellow leaves yesterday and today he called and said there were 20 more. This problem is getting bad fast.

The plants are about half way through flowering at the moment and without and large fan leaves left I don't see much chance of them finishing. The plants are keeping all the bud sites green and healthy looking but the rest of the plants are fading fast.

Can someone please offer something else to try.

I just got the pics. The first two show the progression of the problem over the course of 4 leaves.

I am going to visit him today and would love to bring him some new things to try. He is getting desperate and was even considering harvesting them early.

PLEASE HELP!!!!

Im not a pro, but tryin to learn myself so bear w me!:D

Halfway through flower? Hmmm...the N should be on its way out, which would leave da fans to yellow and some fall off. Whats your PH?


STIIIIIIIIIIINKYYYYYYYY! Where areeeeeee youuuuu?:D

to 6.7 after mixing the fertz.

He has added some organic potash to the watering to try to treat for potassium deficiency and sprayed with a 2% epson salt solution to try to treat for Magnesium deficiency.

Chron here's what I usually end up doing with the soil people because i'm so clueless with soil. ;)

International Cannagraphic Magazine Forums - The Complete guide to Sick Plants,pH, and Pest troubles!

Give to your friend. It's excellent and I hope it helps his plants. :)

Oh and what size pots are they in? Could they be rootbound?

Good call ya ole hound dog! That may help me as a reference in the future as well!
Those look like 10"-12" pots, but they look like they may be short, which looks like you may be right:cool:

PS: I never knew I was into "beastiality" until I saw your Rhinos:D

Woof :D

PH spotting generally from wild PH swings, nitrogen is already locked out, you need to get this under control ASAP, this will stop bud resin production

To rule out PH related issues complete a soil runoff PH test.......
with PH corrected water (6.5-6.8PH ) pour enough water in the pots so the water runs out the bottom of the pot ...test the PH of this water....

If the PH reading is out of optimum range 6.5-6.8 PH, you need to flush your plant.
Flush with PH corrected water, till in optimum PH range, 3 times the volume of the pots rule of thumb but may require much more flushing if the rootball is thick & sour

EG: 1 gal pot = 3 gal. flush

add 1/2 strength nutes to the last gallon of the flush.


your buddy needs to start ph correcting EVERYTHING that goes in the pots

Good info GG....Thanks. :)

What sort of soil are you running?
Do I see long fiber coco in there?
Is there any peat?