Yellow/brown spots, 3 weeks of flowering (yes, another one of these!)

headiessmoka

Active Member
So, few more q's for you fine people.

Considering the steps I've taken (lime in soil, magical watering), do I need to continue to supplement Mg to her every watering until symptoms go away? I guess what I'm wondering is, how long might it take for the problem to be corrected? I don't want to overfeed Mg
 

max316420

Well-Known Member
This is how you wanna look at it, you plant won't show signs of def until it has really set in good so it could take a while to correct itself. You won't get green leaves back but the yellowing will stop. Having a mag def will slow down growth greatly and make the plant unhealthy. I might have said this in a earlier post but make sure on your next grow you start supplementing either right before you switch your lights or right after. And you'll nip this problem in the bud..(no pun intended lol)
 

headiessmoka

Active Member
Bump, an update for those who care :D

24 hours later, her situation has declined. The freckles have worsened, and some of the most affected leaves are just now beginning to form curls on the very tip of the biggest leaves. Rust spots appearing on the bud leaves now, too.

She still *seems* healthy enough. Am I going to have to wait to see an improvement? Or is it not the Mg issue I thought it was?
 

bethanybrawndo

Active Member
read the whole thread....i guess what im wondering is how are the bud leaves doing?

I havent ever had a plant that spiraled this far out of control...but the one time i did have a magnesium def I doubled the mag at feeding everyday for a week. it eventually came around.
 

headiessmoka

Active Member
Bud leaves remain relatively normal but the spots ARE beginning to creep up on them..

What I need to know now is, is it normal for the problem to have worsened before it has gotten better? Should I wait and see before I put in more Mg?
 

Mr.Grønn

New Member
I don't agree with the guy that said keep giving it Mg all the way till the end.

Remember that CALCIUM is very much an issue whenever you have Mg-def.
"Rust-spots" is to me a symptom of Ca-issues, because a true Mg-def is more like yellowing at certain places (like between veins).

You cannot only give it Mg, it needs the correct ratio Ca:Mg.
This is why people sell CalMag (set at the correct ratio I guess).

Also, remembmer that when you give distilled water you are depriving the plant of Ca (which is found in tap- and mineral-water, along with a lot of other useful elements).
 

headiessmoka

Active Member
Okay, so I just added another healthy tbsp of dolomite to the top soil spread evenly, and then watered with another half gallon of distilled with 2 tsp of calmag in it. Basically same as yesterday but a bit more calmag this time.

From what I've read, it is hard to get Mg toxicity so I'm not too worried about giving too much. Also, I figure the lime will help with the pH if any kind of pH lockout is occurring.

[youtube]SBFVe9HXQzA[/youtube]

Made this video about an hour ago.
 

brokenturtle3102

Well-Known Member
Hahaha "I don't want a Ginger..."

Anyways, you should keep feeding her some extra calmag, they will take time to respond. Don't expect them to. Fix themselves up very quickly. The leaves might be stuck like that as well, so look for new growth if you can. Also, if you really want to save your yields, fix the temp in your veg room. Looks like the girl on the left is suffering major major heat stress. The right one might be more healthy and reluctant to heat but not the left one.
 

headiessmoka

Active Member
When you say my veg room, are you talking about the 2 clones in my tent?

The temps are a-ok in there, that girl on the left isn't suffering from heat stress. It is a constant 75f and 40-50% rh
 

max316420

Well-Known Member
Mr.Grønn;6463026 said:
I don't agree with the guy that said keep giving it Mg all the way till the end.

Remember that CALCIUM is very much an issue whenever you have Mg-def.
"Rust-spots" is to me a symptom of Ca-issues, because a true Mg-def is more like yellowing at certain places (like between veins).

You cannot only give it Mg, it needs the correct ratio Ca:Mg.
This is why people sell CalMag (set at the correct ratio I guess).

Also, remembmer that when you give distilled water you are depriving the plant of Ca (which is found in tap- and mineral-water, along with a lot of other useful elements).

I said calmag.... NOT only magnesium, because they work in harmony together....
 

max316420

Well-Known Member
To OP, you got my advice... I'm sick and tired of trying to help people and you got a hundred people giving a hundred opinions.. Good luck bro and hope everything works out for you
 

headiessmoka

Active Member
Haha, yeah. Its all good though. The thing about being able to get so many different opinions is you gotta figure out the similarities in what people say you should do and weed out the bullshit.

Thanks again Max
 

max316420

Well-Known Member
Good luck bro and remember to start supplementing your calmag right when you flip your lights next grow.. You won't run into this problem again.
 
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