[drfarm]

Group of 8 plants are all exhibiting what you see in the foto. Yellowing and leaf drop at the bottom also. The dead looking spots do all the way through and the leaves are often very brittle. They are at about 30 days flower, too far to let it go on. Right now they are recieving 9 ml/gallon florabloom. Water is ph at 6.0. Recently flushed when the run off showed a low 5 ph, but that has been a couple weeks and no improvement. Just today added a teaspoon epsom salt in 2 gallons and 1/4 tspn. of 30% hyd.peroxide. There is one just flipped to flower with them about 10 days ago, which was healthy and green until now and is showing similar signs. Maybe a disease or? I dont know, need help. All my vegging plant share the room with the flowering until about lights out when they are moved to a veg chamber. No obvious problems with anything in veg, only the flowering ones. Really starting to worry me with this Thanks, drfarm


Will get more fotos if it will help, but cant get good macros

[spinkus]

30 Days flower, 9 ml bloom. Could be a P deficiency. If you were growing in coco and watering everyday this might be enough but with soil-less mix(looks like what your using) watering less you might need more bloom nutes in the surge of the flowering period which your in. 6.0 ph seems fine, I use 6.2 in soil-less but know people who go 6.0 and 6.4.

Plus the little yellow random spots on the bottom kinda look like the start of a calcium deficiency to me, or it could just be the P def starting up. Try a little more bloom and a little bit of cal-mag. The overall paleing is just natural during the end of flowering 30 days might be a little early but no big deal

[ConceptOfSleep]

Well this is my guess...

Those ladies need some N... Do you cut to only 9mL Bloom per gallon as soon as they hit flower? The Bloom has no N in it whatsoever, so that could be the cause of the yellowing dying leaves from the bottom up... For the first few weeks of flower I stick to the 6mL Micro, 9mL Bloom per gallon, and everything stays nice and healthy... I dont cut out the Micro till the beginning of week 4.

[spinkus]

Definitely agree with Concept about the N if your not adding any Micro to your mix. I do 9-6 also but up the bloom around Day 21-28

But that dead necrotic patch looks like a P deficiency to me...

[drfarm]

I was using 6/9 micro/bloom until about 1 week ago. Just changed to straight florabloom then. At least no one thinks yet there is disease. That is good. Few better pics and if you still think the same, that is the direction I'm going. For now, next feeding will up the bloom to 12 mil/gal and maybe 6/12 on the younger one in the center with the newer flowers. Thanks for helping everyone

[spinkus]

Yeah Dr go with 12-6. The speckling of little yellow spots turning brown looks like a calcium deficiency which makes sense since you cut out the Micro which has the Calcium in it. The paleing of the leaves is no doubt Nitrogen also due to the fact that you cut out the Micro. I usually keep 6ml Micro till day 42-49 then I start my 3 week flush.

[drfarm]

Thanks Spinkus, and Concept. You have no idea how much better this makes me feel. Third round with this plant and the prob has gotten worse each time. I have backed up on the nutes more each time and maybe deficient was the problem all along. Will post again in a week good or bad if anything is changed and what has been done. Thanks so much, drfarm

[spinkus]

Glad I could help! You just figured it out in your last post!

"Third round with this plant and the prob has gotten worse each time. I have backed up on the nutes more each time and maybe deficient was the problem all along"

[ConceptOfSleep]

Hey no problem DrFarm...

Just a quick question... Are you growing in Soil or Coco? I can clearly see some dead leaf tips, which could mean that they are being overfed, or perhaps there is a salt buildup in your medium from pH issues... If you are in soil, then 6.0 is really a bit low...however in Coco, I have found that 5.6-5.8 seems to hit the mark for me. Like Spinkus said, there does seem to be a bit of a calcium problem (the spotting, dead edges on the serrations) which definitely will rear its head with pH issues and the lack of Cal or Mg in the Bloom nutes.

Id suggest a bit of Cal/Mag if you have it, as I also see some intervenal chlorosis starting (sign of Mg def)...

Here is what I would do.... First off, give em a good flush... use 2-3 times as much water as the volume of your containers (2 gallon containers, use 4-6 gallons of water)....If you are in Coco, Id flush with plain water pHed to 5.8, in soil around 6.8...

After a good flush, then I would give them your normal feeding...Perhaps 12mL Bloom may be a bit much if you do already have a nutrient lockout....after the flush Id go with the normal feeding 9mL Bloom, along with a dose of Cal/Mag or Micro to get some Ca & Mg back in those babies...

Either way, with problems like this I would certainly give them a good flush before you give them more and more food becuase like I said I can see some tip burns, which could mean you are overferted and the medium is locking out many of the nutrients your ladies need right now.

Good luck, I hope the problems clear up for you.

:

[thcnology]

This is def a K deficiency, compounding Mg/Ca problems. How much Floragro are you using? You'll notice most of the K in GH 3 part, is actually in the gro. All three of these have to be used in conjunction with each other. The levels of each changes depending on where your at in your grow....but if your not using any gro right now with four weeks to go, it's no wonder your K deficient. Right now is when i'd start backing out of the gro and adding KoolBloom, to give them even more K.