What nutrient deficency is this?

C

CannaR05!

Active Member
Hi first time doing an organic grow and this seedling is getting sick. Can anyone help ID this issue?
Grow info:
Soil:,Fox Farm Light Warrior 60%, perlite 20%, EarthWorm Castings 20%
light: Mars Hydro tsw2000 lowest setting 24” above canopy.
One small fan for ventilation
Temp: 82F RH: 75%
water: distilled applied via spray bottle
She is 3 Weeks old.
strain: Pineapple Express photofem Sativa dominant.

Through some research I think this is a Magnesium Deficiency. Can anyone please confirm if this is correct? It started on the bottom node and is slowly working its way up to the newest growth.
 

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I was looking at the pics thinking "this looks like the beginning of mg def" and I finish reading your post and you already determined that. Good research.

CalMag, Ph to 6.5 for soilless.

.

Distilled water has no mg, so you've been unintentionally starving your plant.

Don't wet by spraying, drench the rootball til runoff.

.
 
Hobbes said:
.

I was looking at the pics thinking "this looks like the beginning of mg def" and I finish reading your post and you already determined that. Good research.

CalMag, Ph to 6.5 for soilless.

.

Distilled water has no mg, so you've been unintentionally starving your plant.

Don't wet by spraying, drench the rootball til runoff.

.
Click to expand...
 
Yea I thought so…light warrior is a soiless seed starter. So I should have added some epsom salt and kelp meal to make sure the lil girl has a small dose of cal mag. I’m gonna give her a light foliage spray with the epsom salt and see if she gets better. I’ll keep you posted. Thank you for confirming my suspicions.
 
CannaR05! said:
Yea I thought so…light warrior is a soiless seed starter. So I should have added some epsom salt and kelp meal to make sure the lil girl has a small dose of cal mag. I’m gonna give her a light foliage spray with the epsom salt and see if she gets better. I’ll keep you posted. Thank you for confirming my suspicions.
Click to expand...
Light Warrior is not soiless. It's an organic starter soil.

And I would check for bugs. What are are those white spots?
 
CannaR05! said:
Hi first time doing an organic grow and this seedling is getting sick. Can anyone help ID this issue?
Grow info:
Soil:,Fox Farm Light Warrior 60%, perlite 20%, EarthWorm Castings 20%
light: Mars Hydro tsw2000 lowest setting 24” above canopy.
One small fan for ventilation
Temp: 82F RH: 75%
water: distilled applied via spray bottle
She is 3 Weeks old.
strain: Pineapple Express photofem Sativa dominant.

Through some research I think this is a Magnesium Deficiency. Can anyone please confirm if this is correct? It started on the bottom node and is slowly working its way up to the newest growth.
Click to expand...
Looks like you have root aphids in your medium. You can tell by the white spots they leave all over your leaves. They are sucking the sap out of your plants! You need to get a root drench to eliminate them asap. Lost coast plant therapy makes a organic or all natural product that works great. To name one.
 
Humboldtcalikidd said:
Looks like you have root aphids in your medium. You can tell by the white spots they leave all over your leaves. They are sucking the sap out of your plants! You need to get a root drench to eliminate them asap. Lost coast plant therapy makes a organic or all natural product that works great. To name one.
Click to expand...
I appreciate it thanks.
 
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