Difficiency Problem With Pics
- Thread starter superdave5
- Start date
demonic1
Well-Known Member
It's magnesium deficiency!!! Give it Epson salt. 1 tsp per gallon and it is definitely not nute burn. If it was nute burn the tips and the edges of the leaves would be yellow and look like they are burnt. You might even try a foliar spray if it has spread to the upper leaves. 1/2 tsp per gallon and spray when the lights are going off as to not burn your plants. MJ uses a lot of mg especially if they are growing fast. Don’t flush it, just give it more mg.
Mongobud
Well-Known Member
15 Ml. of cal-mag is alot...too much could lockout other nutes and in return lockout even the cal mag. I only use it when I see that the plants are needing it, definitely not every feeding, and only 5-10 ml then. It could also be from PH fluctuation, check you're runoff after a good flush...and always go lighter on the nutes after a flush.
Homer Hudson
Active Member
I want to help you out the best I can.I posted once before but need a second opinion. Also thought I would add some more pics to better analize the problem. On top of the plants here is what Im feeding so far
per 5 gallons of RO water:
30ML of Botanicare CNS17
15ML of CalMag
3-4ML of GH's floralicious Plus
Any thoughts
The pictures are great by the way, wouldn't mind pictures of the underside of the leaf as well.
A few questions to narrow this down, but I am already leaning towards a nutrient deficiency not nute burn.
First off, I need to know;
Is this happening only on the older leafs, and the new leaves are untouched or both. Look at this very carefully, from the pictures it does seem the old leaves are affected.
If you can obtain this for me it would be great. Just from what I can see here, it could easily be another case of Potassium Deficiency. The small dead area spots, while the plant leaves still remain green and the yellowing and browning of the ends will point to this.
Thanks
demonic1
Well-Known Member
That's 15 ml to 5 gallons. That's not enough if you ask me. It's way light if you've got fast growing indoor plants under 1000w lights.
masterd
Well-Known Member
dont mean to put off your judgement but from my experience with nute burn, yes true it will burn the edges of the lower leaves, but if there is a build up of mineral salts in the rootball the plant can get spots on it that appear red, this happens in alot of plants besides MJ...
EDIT: and if ur feeding every watering this is almost a certainty.
EDIT: and if ur feeding every watering this is almost a certainty.
masterd
Well-Known Member
well i had another think about it(i dont know about cal mag dosage) but if it is high, mg will lock out MANGANESE(Mn) wich it could be, because Mn does cause spots sometimes(dont know why it didnt cross my mind before), but mg really doesnt cause anything really like that.... not that ive seen anyway... and ive dealt with plants for a while(not just MJ)
mismos00
Well-Known Member
demonic1, in the second picture the leaf is curling down, not up... a classic sign of nute burn... or at least that's what mine did the last time I over feed them... all the leaves had that claw thing going on... plus nute burn can have many different types of symptoms that appear as deficiencies (I seriously overfeed mine the first time and got all kinds of interesting, different colored markings and dots on the leaves, just before they started to fall off), and plus this guy basically said, or something he wrote made it sound like, he feeds his plants every time he waters (something I learned not to do)...
superdave5
Active Member
Thanks for all the post guys. First off, I am using 15ml to 5 gallons (feeding ratio is 5ml to 1 gallon) so im good there. Second, Homer- yes it is on the new growth as well but nowhere near as bad. Ive been googling this quite a bit and looking up the symptoms and personally Im leaning more towards nute burn, but Im still unsure. My lights come on in about 3 hours so I will post new pics soon.
By the way I never usually get this much help and all of your input is very very much appreciated!
By the way I never usually get this much help and all of your input is very very much appreciated!
superdave5
Active Member
mismos- I do start off feeding my plants every water. The only reason I do this is because previous strains could handle it. My last white widow grow from nirvana seeds I fed from day one (well I mean once they were rooted not from seed) and they didnt have a single burn spot. Now I have different white widow genetics in my garden and Im leaning towards these plants being ALOT more sensitive
Once I get to flower I flush every other feed but thats because Ive never had a problem this early
Once I get to flower I flush every other feed but thats because Ive never had a problem this early
sgt.stiffy
Member
you may over water it: id water them twice a week if that, depending on your reflectives you could have light burn, or too many nutrients/not enough nutrients will cause nute burn.
superdave5
Active Member
posting pics in 5 mins just waiting for them to upload, let me know what you guys think. I fucked up i think though because if it is nute burn I flushed the epson salt and then followed with light nutes (not all at once either)
Plants dont seem to be stunted at all though so Im confused
Plants dont seem to be stunted at all though so Im confused
superdave5
Active Member
superdave5
Active Member
superdave5
Active Member
And you can tell that I havent been soaking them either if you look in the pics the outside of the pots are completely dry..... Please help haha
superdave5
Active Member
thx man and how would you correct an mg difficiency?