What in the world are these red colored dots? (Please don't be leaf septoria!)

Kind of freaked me out when I saw these. Just want to make sure it is nute-related and not some disease.

I am pretty sure I had aphids, but got rid of them the way I found online (Bayer advanced-still @ least 2 months of veg) which I used 3 days ago @ last watering & just found these today.

Accompanied by purple stems & part of the stalk. Transplanted 2 weeks ago to R/O soil.

So I am beginning to think it is more nute-related because I noticed it is only on that one strain inparticular so far. To me it looks like they have nute issues in general (partially caused by ph issues) But I am still new to this.

What do you all think?

You just started them on cal/mag a couple weeks ago, correct? Sorry, trying to remember.

Yes it a nute dif look it up on line I can not remember what it is right now soz.,

Make sure PH is correct first....

Bugeye said:

You just started them on cal/mag a couple weeks ago, correct? Sorry, trying to remember.

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Yes, exactly two weeks today. Good memory. Unfortunately i've been slacking with them (as far as reading PH recently) been watering from the drain trays.
So I guess actually three weeks since transplanting.

If it is not a disease I am not too worried about it & would not have posted, I just wanted to make sure I didn't need to throw that plant out before it effected the rest.
I googled red dots on leaves & saw pictures of "leaf septoria" that looked pretty similar so I started to freak out lol.

I think they need to be transplanted, growth took off after taking your suggestion on cal/mag.

sold777 said:

Yes it a nute dif look it up on line I can not remember what it is right now soz.,

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Thanks bro!

Warriorbuds said:

Make sure PH is correct first....

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Most certainly! This is what Bugeye suggested I do before which was good because they were wayyy off. 5 days ago it was 6.4, so better than before but still a little acidic. I need to test run off again.

To be honest...I just make sure what's going into plants is between 6.3-7.2 roughly(im in soiless)...and learned a trick from another member to deliberately move it a cpl points up or down too make sure plant gets everything it needs. I don't test runoff....started when I first started growing but got to a point where was not needed anymore..and it was far too confusing and frustrating......sort of felt like I was "micro managing myself"....lol....

PS....Don't water from drain trays ever......do not put runoff water through your plants...Good luck!

Thank you all for letting me know it is not a disease. Any idea what it is? I am starting to look it up now. Only thing remotely similar I could find in my book "How to Save a Marijuana Garden" is a manganese deficiency or maybe phosphorous (but that one seemed highly unlikely)

It is spreading fast on those two strains, any ideas?

Warriorbuds said:

To be honest...I just make sure what's going into plants is between 6.3-7.2 roughly(im in soiless)...and learned a trick from another member to deliberately move it a cpl points up or down too make sure plant gets everything it needs. I don't test runoff....started when I first started growing but got to a point where was not needed anymore..and it was far too confusing and frustrating......sort of felt like I was "micro managing myself"....lol....

PS....Don't water from drain trays ever......do not put runoff water through your plants...Good luck!

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Heyy, well that is good to know, I appreciate it . That's something I will remember for a long time for sure. Haha it definitely can take some time. I have only been doing it every once in a while. Their Ph's were around 5.8-6.1 two weeks ago. They still aren't all above 6.5 just yet, & been watering with 6.8-7.0 ph. Crazy it's taking so long to readjust.

That is really good to know. I ask because I want to learn; Why do you say don't water from the drain trays?

I've only done it once with these in-particular plants, b/c it was convenient on a busy day.