Threads is in beta — try the new feed
Start My Diary
Start My Diary
Log In
Start My Diary
Home
Threads
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
English
Log In
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
What deficiency is this? Brown Spots
GrowBuv
started grow question 6y ago
What deficiency is this? I lowered my nutes quite dramatically, I’m thinking that this is most likely the cause. I have fed with stronger nutes the next feeding after spotting this.
Open
Week 13
Leaves. Color · Dark-brown
likes
Answer
GrowBuv
answered grow question 6y ago
After some more research I would say this is most likely a Calcium or Magnesium deficiency
likes
Complain
Dawgssszzz
answered grow question 6y ago
Bad case of nutrient burn. Need to flush it with ph balance water
2 likes
Complain
Similar Grow Questions
Solved
Oldmanbud__50
Help on cal diffcency
Hi can I use blood fish n bone to sort a calcium problem. In my plant.. Only on 1 fan leaf.. Doing this on a very low budget. Ty in advance
Week 2
Leaves. Color · Dark-brown
6y ago
1
1
Solved
Trickybis82
What is the problem here?
What could this be? Any idea my fellow growmies.. I see leaf discoloration and leaves turning into claws and breaking.. so I flushed her out using flash clean and then re-watered with nutes and I think i still have a problem look at pics and video any help is much appreciated
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Dark-brown
5y ago
4
Solved
Mraady
Leaf edge and tip curled down
After uncertain 7 day of dryback i did a feed of 955ppm and got only 100ml runoff and after 2 days rusty patch appeard leafs and tip curled down does second feed of 700ppm and 20% of runoff can fix it ? Day 50 Coco soil 50/50 mix Strawberry milk and qookies night owl
Week 7
Leaves. Curl down
Leaves. Color · Dark-brown
9mo ago
2
4
Solved
Gdubgrows
Brown spots on the Gold Leaf?
Brown spots with light yellowing. Possibly calcium deficiency? This is only happening on the Gold Leaf. Neither of the GDPs are showing these signs. This has happened over the last 2-3 days.
Week 4
Leaves. Color · Yellow
Leaves. Color · Dark-brown
3y ago
4
3
Solved
spacetimeman
Brown spots on the leaves
I have some brown spots on the leaves, the pH, ppm are as recommended, what could cause this?
Leaves. Color · Dark-brown
4y ago
3
3
Solved
SmallTownGrower
Might this be a Calcium deficiency I'm having?
Week 9
Leaves. Color · Dark-brown
7y ago
5
4
Solved
Dylannthoo
Is 8 oz of water about right for 3 weeks old plants? Also thinking about LST, is it a good time to start that now? Also is buying nutrients worth it when it comes to harvest? Or is it more dependents on the power of the light ? Thank you for any advice 💯🙏🏼
Week 3
Leaves. Color · Dark-brown
7y ago
3
3
Solved
Bembeto
Hojas raras
Something is happening to the leaves, I don't know if it's a deficiency or fungi. Can you give me a hand?
Week 7
Leaves. Color · Dark-brown
Other. Mold
Feeding. Deficiencies
5y ago
4
2
Solved
Heman17
Lower leaf brown
Does anyone know what this leaf browning on lower leaves is? Thanks
Week 2
Leaves. Color · Dark-brown
5y ago
1
1
Solved
Lol_You_Looked
VPD related leaf issue? Brown spots, don't think its Cal related. Pls, any help would be appreicated.
Brown spots on leaves, I thought it was Cal related, and tried different doses, with no success. Could it be VPD related? It can and does get very hot and very humid in the 1.5ftx2.5ft closet. Even when running no humidifier (Live in AZ). I've been struggling with this for months
Leaves. Tips · Burnt
Leaves. Color · Dark-brown
Leaves. Other
4y ago
4
Solved
Magic43562
Vein brown
Is this from dry root spots in a fabric pot? Only on 1 leaf so far, veins are turning brown.
Leaves. Color · Dark-brown
6y ago
1
1
Solved
ivanosch
Dry yellow and brown leaves
All plants get same nutris and water, what is the problem with some of them? Need help 600ppfd 69 f 55-60 humi Ec 1,2 plagron grow + root power
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
3
Solved
odrex
What would be the cause of bronzed/rust spots on leaves?
Dual strain pheno hunt. One strain is experiencing bronzed/rust spots. What could be the cause? No pests/eggs to see. Assuming deficiency Soil: Gaia Green Living Soil amending with 3 TBSP/g 4-4-4, 25% worm castings and 4 TBSP/g wollastonite Water: 80 mL daily
Leaves. Color · Dark-brown
4y ago
1
2
Solved
Splifflicious
Brown spots on some of top/bottom leaves
Hi all, So I’ve been getting these small brown spots on some on her top leaves as well as on some of her bottom ones. No idea what this is, for sure no Cal or Mag def as I have been consistently feeding her CalMag. Thanks ✌️🏼
Leaves. Color · Dark-brown
Leaves. Other
6y ago
2
Solved
fraankiiee
¿Carencia o exceso?
Some spots have appeared on the leaves. Do you think it could be a deficiency or an excess?
Week 7
Leaves. Color · Red or pink
Leaves. Color · Dark-brown
6y ago
3
Solved
Dirtydraggel
What kind of deficiency is this or is it light burn? Can provide more pictures since they are in a sleep period now. It’s this plant, strawberry banana one and the purple queen.
Week 7
Leaves. Color · Dark-brown
8y ago
4
4
Solved
Fordsie
Phosphorus def in veg?
Phosphorus deficiency in wk 4 of veg? I noticed a few small discolored blotches on lower leaves 2 days ago and today it is a lot worse! Use flora trio, and 2 other plants in this run are under same conditions with same nutes. Could this be a pH issue? PH has been consistently ~6.
Leaves. Curl up
Leaves. Twisted
Leaves. Color · Dark-brown
6y ago
1
2
Solved
heythere12345
Weird leave color sad looking leaves
What does that colour on the leaves mean? Also does it look like overwatered? I watered today 1L after 3 days of not watering and pot was light
Leaves. Color · Dark-brown
Plant. Wilting
5y ago
1
1
Solved
CRIM_mir
Day 46 NL Auto: Multiple Leaf Problems Developing after Possible Nute Lock and 2x Flushing — Should I feed again @ lower TDS? What’s wrong?
Hi growmies! Wks 3-5: overfed 3 plants Wk 6: TDS after plain h20 1800-2300ppm; 2 flushes w/ gallon h20/plant Wk 7: TDS readings 500-800pp, but 1 plant showing multiple types of leaf problems I thought I fixed it, but now I don’t know what’s up or what to do? Thoughts?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Leaves. Color · Mottling
6y ago
5
3
Solved
TripleCcannabis
Havent found any help for the issue my little girls having.. browning and drooping. Leaves are still ridged but curling up. My heat was a bit high but iv fixed that. So now @ 24C and 65 RH 24hr lights. No nutrients yet but have a very dilute 1:1:1 of the GH trio mixture.. no help
Week 1
Leaves. Curl down
Leaves. Color · Dark-brown
6y ago
3