Plants Necroting

[danksy]

HI RIU,

I'm having trouble identifying this deficiency. It seems like cal/mag deficiency to me, but it seems like it can also be septoria disease or possibly a P deficiency. what do you guys think?

I'm in veg, feeding with RO. The plant has a lot of those dots, and its slowly losing its color.. cal/mag?



Thanks,
Danks

 

[Kookiemonsta]

Does yours have any cuts/holes in the leaves? I have a sort of the same thing going on, but im getting small cuts in the leaves before the circles start.

 

[matthebrute]

are you giving it nutes?

 

[danksy]

Kookiemonsta: Nope, no cuts or holes so far. Is your leaf dark green too?

Matthebrute: Yup, I'm giving it about 800 ppms of veg nutes. I fed it tap at first two waterings. Then, I started feeding it RO water without even adding cal/mag (didn't know) for one watering. The next two waterings, I added cal/mag in the form of foliar spray. I'm kinda thinking I should flush.

 

[max316420]

calmag.... mostly calcium, If you flush it will get worse. Feed calmag and some time and she will recover. RO water is so pure that it always has to be supplemented with calmag, especially if your ladies love it.. Which alot of strains do.

 

[Kookiemonsta]

Yeah mine are a nice healthy green.

If what Max says about flushing will make it worse is true I definitely am in need of cal mag. I flushed em 2 weeks back right around when it started appearing, and after that the problem really sped up.
I think mine might be a bit more on the mg side though. I use tap water, and I have a lot more of those rusty spots like you have.

 

[max316420]

The rust spots are caused by lack of calcium and the yellowing is from magnesium... IMO

 

[danksy]

Okay, my phone is still not working at all, but I found a pic that looks exactly like my plant.


Still think its a cal/mag deficiency?

 

[neved]

Okay, my phone is still not working at all, but I found a pic that looks exactly like my plant.
View attachment 1898269

Still think its a cal/mag deficiency?

Hey dude
I have really same prb as yours ...if u want to check https://www.rollitup.org/marijuana-plant-problems/467439-issue-my-rooms-plz-17.html
I think its cause by temp and cal/mag . My prb start about 2 weeks ago and I got every I need as epsom salt and cal/mag I add first epsom salt but I c no help then I used cal/mag I think the prb was stop but really afraid ....

 

[neved]

Yeah mine are a nice healthy green.

If what Max says about flushing will make it worse is true I definitely am in need of cal mag. I flushed em 2 weeks back right around when it started appearing, and after that the problem really sped up.
I think mine might be a bit more on the mg side though. I use tap water, and I have a lot more of those rusty spots like you have.

Hey dude....
I think I had this prb by your way ....I think u only have to use flush in veg not flower so ...
https://www.rollitup.org/marijuana-plant-problems/467439-issue-my-rooms-plz-17.html
http://www.growmore.com/formulas/202020.pdf

 

[danksy]

^ that sucks.. it kinda looks like a pH problem for flowering.

I think my problem is a cal/mag deficiency; if its brown = calcium, yellow = magnesium