Yellow spotting on colas? Help plz

TessaMaria

TessaMaria

Well-Known Member
Just an idea because it is hard to tell with the pink/purple lighting, but I had a magnesium and calcium deficiency when I was watering with reverse osmosis water and didn’t know to add calcium and magnesium to that type of water. The deficiencies were pretty bad and I did get it under control eventually but a lot of parts (both flower and leaves) were yellow and ended up getting bud rot at those parts.
Unfortunately when the deficiency gets so bad the part of the plant changes to brown/rust/yellow color that part of the leaf or flower doesn’t recover.

I trimmed as much of it out as I could with a small pair of clippers and then did a staggered harvest on the rest of the plant. Good Luck (: :peace:
 
curious2garden

curious2garden

Well-Known Mod
Staff member
TessaMaria said:
Just an idea because it is hard to tell with the pink/purple lighting, but I had a magnesium and calcium deficiency when I was watering with reverse osmosis water and didn’t know to add calcium and magnesium to that type of water. The deficiencies were pretty bad and I did get it under control eventually but a lot of parts (both flower and leaves) were yellow and ended up getting bud rot at those parts.
Unfortunately when the deficiency gets so bad the part of the plant changes to brown/rust/yellow color that part of the leaf or flower doesn’t recover.

I trimmed as much of it out as I could with a small pair of clippers and then did a staggered harvest on the rest of the plant. Good Luck (: :peace:
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Those splotches are neither an indicator of a Ca or Mg deficiency. Although I agree if you're using RO water for hydroponics you need to add both Ca and Mg Unfortunately we don't know his substrate or what he's feeding.
 
DrKiz

DrKiz

Well-Known Member
curious2garden said:
Those splotches are neither an indicator of a Ca or Mg deficiency. Although I agree if you're using RO water for hydroponics you need to add both Ca and Mg Unfortunately we don't know his substrate or what he's feeding.
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Agree with this. Same thing happened my first coco run. Not sure which it was... cal or mag or both. But adding calmag to my RO put a stop to it.
 
Macintyre22

Macintyre22

Member
Only 1 plant is getting the spots, and all of my plants get f
curious2garden said:
Those splotches are neither an indicator of a Ca or Mg deficiency. Although I agree if you're using RO water for hydroponics you need to add both Ca and Mg Unfortunately we don't know his substrate or what he's feeding.
Click to expand...
I just mix my nutes into Distilled water, ph it to 6.4 and feed every 4-5 days
 

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Gond00s

Gond00s

Well-Known Member
I said ppm not dosage of nutrients because im trying to figure out if that's just to much a gallon because I feed plants at 500 ppm of food from my base 90 ppm tap water ends around 600
 
Macintyre22

Macintyre22

Member
TessaMaria said:
Just an idea because it is hard to tell with the pink/purple lighting, but I had a magnesium and calcium deficiency when I was watering with reverse osmosis water and didn’t know to add calcium and magnesium to that type of water. The deficiencies were pretty bad and I did get it under control eventually but a lot of parts (both flower and leaves) were yellow and ended up getting bud rot at those parts.
Unfortunately when the deficiency gets so bad the part of the plant changes to brown/rust/yellow color that part of the leaf or flower doesn’t recover.

I trimmed as much of it out as I could with a small pair of clippers and then did a staggered harvest on the rest of the plant. Good Luck (: :peace:
Click to expand...
Thank you!
 
J

Jay_Dreams

New Member
Macintyre22 said:
I've noticed on one of the 4 plants I have flowering (week 6) is showing yellow spots on the top colas. Any idea what the cause of this could be?
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Nute overload. Cal mg and water. Also if you're feeling spendy start using enzymes that break up salts. Hygrozyme gets a lot of heat because it's expensive and not necessary but helps me be able to over nute and then wash my roots so it doesn't get the build up.
 
curious2garden

curious2garden

Well-Known Mod
Staff member
Macintyre22 said:
My apologies, Is this any better?
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Much better, and your plants look good. I see no signs of nutrient burn and they don't look underfed. Looks like some light burn, how close are they to your lights? Is it possible you spilt something on them? Is this one plant right in the focus?

You need a TDS or EC meter so you know exactly how much you are feeding them. Anyway looks like you have another 2-4 weeks.
 
Macintyre22

Macintyre22

Member
curious2garden said:
Much better, and your plants look good. I see no signs of nutrient burn and they don't look underfed. Looks like some light burn, how close are they to your lights? Is it possible you spilt something on them? Is this one plant right in the focus?

You need a TDS or EC meter so you know exactly how much you are feeding them. Anyway looks like you have another 2-4 weeks.
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I thought it could be light burn too, but my white window is a couple inches taller and has no signs of light burn. They may have gotten a bit of water on them, I never considered that. I appreciate any comments and compliments. Thank you!!!
 
curious2garden

curious2garden

Well-Known Mod
Staff member
Macintyre22 said:
I thought it could be light burn too, but my white window is a couple inches taller and has no signs of light burn. They may have gotten a bit of water on them, I never considered that. I appreciate any comments and compliments. Thank you!!!
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Different plant, different sensitivity, try moving this one from where it's at. Also if you spilt some of your nutrient solution it can burn. I've done that, usually with lower leaves. Otherwise, unless it advances, I'd just watch it and keep on what you're doing.
 
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