The Grow Awards 2026 🏆

Back to Grow Questions

Deficiency help

SSFito173started grow question 5y ago

First week of flower and this starts happening. I flushed with 1 gallon r/o water hopefully it doesn’t continue. Anyone knows what deficiency is this?

SSFito173

SSFito173

SSFito173

Open

Leaves. Color - Dark-brown

likes

Answer

Experimentgreenanswered grow question 5y ago

It look like light burn or a micro nutrient deficiency (magnesium, copper etc). If your lights are the proper distance and your feeding the plants a well rounded diet, then i would double check your ph pen is accurate. Recalibrate it if possible. You may be having ph swings too low or too high. Happy growing. ✌️

likes

Complain

DeadStreamOrganicsanswered grow question 5y ago

It looks like it could be magnesium deficiency

likes

Complain

Similar Grow Questions

Solved

General looks How are my blackberry auto and orange sherbet look like in general? Orange sherbet stayed too short for some reason.. feeding schedule is the same on both( see blackberry auto diary).😁

Leaves. Color - Dark-brown

Plant. Too short

4y ago

2

3

Solved

No se porque se torno amarilla ec esta normal y ph también. Luz se subio para prevenir quema.

Leaves. Curl up

Leaves. Color - Yellow

Leaves. Color - Dark-brown

4y ago

2

2

Solved

Yellowing and brown spots on leaves Can anyone identify why this is happening? I am growing 2 other plants (one the same strain) with identical treatment and this started happening with one of my Royal Jacks. Everyday new leafs show the same symptoms.

Leaves. Color - Yellow

Leaves. Color - Dark-brown

5y ago

2

2

Solved

Dead ?Hello guys, My flowers seem dead, trichomes are not changing since 3 weeks. + Leaves are really horrible (that's broke my Heart) Do you think I should harvest ? That's really clear trichomes and not milky... Still thc in there ? Colombian jack strain, smth about week 27 ?

Leaves. Color - Dark-brown

Other. Harvest - Drying

3y ago

5

4

Solved

Calmag excess or defiency??So.. I have 4 flowering plants. I feed them the same stuff. Same quantity. 2 out of 4 showed some signs on the older eaves and i was wondering if its an excess or a defiency. Yellow with brown spots. Not a wind damage for sure.

Leaves. Color - Yellow

Leaves. Color - Pale

Leaves. Color - Dark-brown

5y ago

2

2

Solved

Brown spots, PH in run-off is in the high end (6.5~)I see some brown spots on my leaves. I thought it was Calcium Deficiency caused by too low PH so I gave them PH 6.5~ with 30% run-off, and run-off shows at least the same PH so I think it is not too low PH, could it be caused by something else? Maybe too high PH or light-stress?

Leaves. Color - Yellow

Leaves. Color - Dark-brown

3y ago

11

7

Solved

Sudden brown on leaves These brown patches appeared in the last 24 hours. It rained heavily during that time. Any ideas what the issue is or what to do to treat it and/or avoid spreading?

Leaves. Color - Dark-brown

3y ago

1

Solved

Phosphorus deficiency?Wondering if this is a phosphorus deficiency... i dont think it looks like cal mag. Any thoughts

Leaves. Color - Dark-brown

5y ago

1

Solved

Leafs with brown spots???I have one plant that has a couple leaves with brown spots. Thoughts?

Leaves. Color - Dark-brown

5y ago

1

1

Solved

Orange/Yellow spots on leaves Today I noticed that one of my plants has an orange/yellow sign on a couple of leaves (see photo with the tag "28/02"). The spots are small and the leaves seem to be healthy (so far). What the problem could be?

Leaves. Color - Dark-brown

3y ago

2

1

Solved

forgettenseedling

Leaves getting brown, can someone help me out? What does the plant need?

Leaves. Color - Dark-brown

Feeding. Deficiences

4y ago

1

1

Solved

Nutrients?Could anybody tell me what Kind of nutrient she need? Or whats her Problem?

Leaves. Color - Dark-brown

6y ago

2

1

Solved

could this be due to the PH being too low?I watered 3 days ago with PH 6.3 Ruoff was 6.0 today watered with PH 6.6 runoff was 6.1 Can the brown spots come from the wrong PH ? fertilizer is full BIO BIZZ CHEEMA, worm humus and mycoriza what would you recommend to do ?

Leaves. Color - Dark-brown

1y ago

6

8

Solved

make_weed_not_war

Yellow leafes with Brown circles So the Easy Bud in the tent Looks Like trouble. The Leafs turn yellow with brown circles… im clueless what It could be but it does not look Healthy. The Leafs at the deepest bottom Look Fine… All Others dont Look good..

Leaves. Curl up

Leaves. Color - Yellow

Leaves. Color - Dark-brown

2y ago

1

2

Solved

Continuing calmag deficiency What I think is a calmag deficiency started about 10 days ago. At first I thought it was too low PH (6.0 - 6.1), so I corrected that, but no luck. Then I started adding biobizz calmag, still no luck. It seems that the deficiencies are picking up speed again. Any ideas appreciated

Leaves. Veins - yellow between

Leaves. Color - Dark-brown

Feeding. Deficiences

5y ago

2

4

Solved

rust-colored spots Hi, I noticed those rust colored spots on some leaves. What it could be? Day 40 flowering (hydro)

Leaves. Color - Dark-brown

Leaves. Other

3y ago

1

1

Solved

Barbieslapping808s

Deficiency or insect damage?Deficiency or insect damage? And from what nutrient or insect 😁

Leaves. Color - Dark-brown

5y ago

1

2

Solved

Nutrient Deficiency What Deficiency’s are these ?? Using Coco+Perlite with earthworm castings and feeding with Fox Farm Nutes following the feeding schedule with CalMag every time I water at 6.2-6.5ph every other day. 1000ml of water per plant. All four clones have been fed the same since I got them

Leaves. Color - Yellow

Leaves. Color - Dark-brown

1y ago

4

Solved

THERMICDESERT11

Brown ruts spot on the leaves Growing organically with happy frog mixed with a super soil concentrate. I water them with spring bottle water, ph at 7.7. Recharge every 10 days. Top dress 2-2-2 dry amendments and I top dress in week 4 of flower with the super soil concentrate. My leaves has brown spots 🤦🏾

Leaves. Color - Dark-brown

4y ago

1

3

Solved

Brown spots on leaves?I have brown spots on one out of my 3 autos, it's mainly on one leaf. Does anyone know what this is? 450w via spectra LED 4gal pots coco & perlite 70% - 30% GH trio + calmag 1L each every day - 2.5ml calmag, 4ml micro, 1ml gro, 5ml bloom 6.2-6.5 ph [no runoff].

Leaves. Color - Dark-brown

6y ago

4