Guide to Nutrient Deficiency or Toxicity

Originally Posted by perkele

hi, any ideas on what can this be? I've excluded the possibility of any bugs. Please advice
Attachment 1997280Attachment 1997281Attachment 1997283 And how can this be treated? ( general info: unknown seed, day 74 with 25 into flowering, lights CFL's,soil Attachment 1997285 and from 2 to 2 weeks 3 cups of Attachment 1997286 for more Perkele's Growing Journal First plant ) Thanks

thats a nute deficiency if your 100% sure its not bugs, magnesium (my guess), or phosphorus.
could be pH being off, could be water droplets on the leaves burning a hole on them (not as likely)

Originally Posted by nick17gar

thats a nute deficiency if your 100% sure its not bugs, magnesium (my guess), or phosphorus.
could be pH being off, could be water droplets on the leaves burning a hole on them (not as likely)

Leaves burning...I don't think so, I understand at what you are thinking, I am not misting the leaves. pH is always and it has always been between 6.5 and 7. Phosphorus...I hope not. I am feeding her the MG juice and it has phosphorus in it...the water I am using is still water with 5.5 the pH. Might be the Mg. I have some epsom salt and I will use it on my next watering. And magnesium is the one that is starting from the middle of the plant, isn't it? cause the affected leaves are from the middle.

Thank you for your reply!

well i dont think its over ferting, overferting usually appears on the leaf tips / serrated edges.

yes, magnesium/calcium deficiency (usually) starts all over the leaves, as speckled spots of death, death by starvation, not overfeeding.

are you in soil? 5.5 ph is too low. if your adding 6.5-7ph water, and the runoff is 5.5, that could be a sign of something in the soil that can/is causing trouble. my last watering went in at 6.8 and came out at 6.4

Originally Posted by nick17gar

well i dont think its over ferting, overferting usually appears on the leaf tips / serrated edges.

yes, magnesium/calcium deficiency (usually) starts all over the leaves, as speckled spots of death, death by starvation, not overfeeding.

are you in soil? 5.5 ph is too low. if your adding 6.5-7ph water, and the runoff is 5.5, that could be a sign of something in the soil that can/is causing trouble. my last watering went in at 6.8 and came out at 6.4

6.5-7 is the pH in the soil. I'll water it tomorrow with some epsom salt as well and I'll see what will be. Thanks for the advices

Originally Posted by nick17gar

you seem ok dude. a litte yellowing at that stage is fine

Awsome. Thanks for the input man.

After flushing, all your fan leaves should be totally yellow. ^Bump^ my plant issue!

Originally Posted by BlueB

After flushing, all your fan leaves should be totally yellow. ^Bump^ my plant issue!

Could it be Calcium deficiency? you can't expect your leaves to look exactly like the ones in the photo. Let me know when you find out what it is though because I have one leaf that looks just like that(one leaf out of 10 plants so im not too worried)

Thanks for the info. My Veg always goes good.
But the leaves curl durring mid to late bloom.
I'm using Technaflora BC Nutes @ 1/3 strength in Veg.
1/3 then up to 2/3 for the last half.
I keep the nute pH @ 6.0 in soil.
This round I'm going to try the nutes @ 1/2 to see what happens???
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