Hey y’all… been a while since I posted anything. Was hoping for some input here… can’t seem to figure out this deficiency. I’m in a coco+perlite hydro system and use the general hydroponics micro and bloom (+ calmag). Given the shift into flower I’ve cut the micro concentration by a bit and am thinking this could be the cause? I just flushed her yesterday to cover my bases if that was needed. Only a few of the lower leaves affected, but I want to nip this in the bud.
Can’t identify necrosis
- Thread starter JPD
- Start date
MustGro
Well-Known Member
Maybe magnesium http://www.growweedeasy.com/cannabis-plant-problems/magnesium-deficiency
Here's a more in depth one https://dutch-passion.com/en/blog/a-visual-guide-to-cannabis-deficiencies-n987
Here's a more in depth one https://dutch-passion.com/en/blog/a-visual-guide-to-cannabis-deficiencies-n987
Looks like it could be. Thanks !
MustGro
Well-Known Member
Well probably not then if you're giving it mag.
Might be getting nitrogen deficient early. They aren't really deep green up top and look paler green down lower. Plus you cut the dose and flushed her.
You've still got some time in flower yet; probably best to up the nutes to at least where you were and see if that stops the necrosis. It's almost impossible to green them up in flower though so all you'll get is the symptoms stopping.
Might be getting nitrogen deficient early. They aren't really deep green up top and look paler green down lower. Plus you cut the dose and flushed her.
You've still got some time in flower yet; probably best to up the nutes to at least where you were and see if that stops the necrosis. It's almost impossible to green them up in flower though so all you'll get is the symptoms stopping.
That’s real good info to know! I think you’re right about me cutting the nutes… looks mobile to me and given the recent shift to flower that’s probably it. I’ll give more of the micro and hope that fixes it. Appreciate your input! Thanks a lot!
I like that idea. I don’t typically water to runoff, However, I might start so I can test the ph and stuff. Is there any benefits I’m missing with regards to watering with or without runoff? Do you suggest I do one over the other?
Ladies are looking nice! That looks pretty straight forward, I’ll have to make something along those lines.
MustGro
Well-Known Member
Potassium link
A visual guide to cannabis deficiencies
Worried about your plant health? See a cannabis deficiency that you cannot identify? Our guide to cannabis deficiencies may help you solve your problems
dutch-passion.com
The second picture in the OPs first post is showing a K deficiency.Potassium link
A visual guide to cannabis deficiencies
Worried about your plant health? See a cannabis deficiency that you cannot identify? Our guide to cannabis deficiencies may help you solve your problems
MustGro
Well-Known Member
That second pic is why I didn't say nitrogen deficient in the first place. I was thinking mag but like @JPD said the plant's getting calmag.
Didn't you say in another post that you've been using the Flora series for years now (since 1996 or so maybe?).
That's a couple for you now; dry coir and potassium deficiency. You're gonna make me a better grower if you keep this up....
Thank you
Last edited:
