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Back to Grow Questions
Spots on leaves
HappySkunk
started grow question 6y ago
Could this be the beginning of a Phosphorus deficiency? Or something else? It’s not really found on my oldest branches, but more my newer ones.
Solved
Leaves. Other
likes
Fruitgrower
answered grow question 6y ago
I would say that's a slight calcium defeciency, just add some cal mag to the feed.
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Similar Grow Questions
Solved
Jazin
Need some help ..! The leaves become a little yellow ... What do I do wrong? Or what do not I do?
Week 3
Leaves. Other
7y ago
5
3
Solved
GhettoStyle
Friends! tell me from the photo what kind of problem is this!!!
I need help only with photos! without a diary! since I have already tried all the acceptable values of EC and pH, then the problem is something else!!! I think knowledgeable and experienced people will be able to identify the problem from the photo!!!
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4y ago
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Solved
cannanub
Holes and scaring on leaves?
What could cause the leaf damage in my last 3 pictures? anything I can do about it?
Week 5
Leaves. Other
6y ago
1
2
Solved
Jaygrow1020_autoking
Can anyone tell me what I'm doing wrong?
Leaves. Other
Other. Other
6y ago
2
3
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theswagnificent
Deformed first true leaves on seedling
My Harlequin x GG4 seedling has a weird set of first leaves. They are very small, narrow, look deformed and bend down. This plant is being watered the same as the other plant that looks healthy (also a diff strain, gorilla zkittlez).
Week 1
Leaves. Curl down
Leaves. Other
Plant. Other
5y ago
2
1
Solved
happykat
Damage/Holes on leaves?
What could be causing the damage on these plants? I don't see any webs or bugs.
Week 4
Leaves. Other
Other. Bugs
5y ago
3
3
Solved
StDeacon
Defoliated
Hey guys, the leaves of my baby go in, should I cut the leaves away or rather wait a little longer?
Leaves. Other
6y ago
1
2
Solved
KCduzit
Feeding question in week 5 (stumped)
Seeing some nutrient burn and discolouration on some leaves as well as some circular spots on leaves. What are they? Any nutrient and feeding advice would be greatly appreciated! Watering at (ph 5.8-6.1 dechlorinated tap water with remo full line veg nutes at around 600ppm)
Leaves. Other
6y ago
2
2
Solved
Dylon
Brown dots on leaves
Getting some brown spots on leaves, thought maybe it was septoria so have been treating with neem oil. It’s still slightly spreading though, not on all leaves. Also a couple brownish/bronze patches. Any idea on what it could be?
Leaves. Other
4y ago
1
1
Solved
narvisck143
Pensate che non c’è niente più da fare ?
The dog ate the leaves
Leaves. Other
3y ago
5
5
Solved
CRIM_mir
Do these random spots mean nutrient burn/deficiency, or is this normal?
I have been feeding my plants 1/2 strength FF once weekly since week 3. The plants seem to be doing well. One has twisted leaves but seems healthy. But the plants are displaying random spots of yellowing. Is this normal or indicative of some kind of nute issue?
Week 4
Leaves. Color · Mottling
Leaves. Other
6y ago
3
4
Solved
einamio
First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)
I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static
Week 11
Leaves. Color · Dark-brown
Leaves. Color · Black or grey
Leaves. Other
1y ago
8
6
Solved
LeastExpectedGrower
Small brown speckled spots on leaf of otherwise healthy plant?
Small brown speckled spots on leaf of otherwise healthy plant. Anyone pinpoint this deficiency or abundance? Northern Lights auto, 2nd week of flower. Feeding GH Trio, etc. Not showing on any other leaves, just this one.
Leaves. Other
5y ago
6
7
Solved
Professor_Daank
What are these spots?
What are these little spots? I only have them localized on this one leaf (and one plant out of three), and haven't seen anymore. I'm more curious than anything. Tips to fix? Don't worry?
Week 3
Leaves. Other
6y ago
3
3
Solved
Tobecobe
Brown spotting, calcium deficiency?
I've just noticed some brown spotting on some older fan leaves. New growth seems fine. Calcium deficiency? Flora trio with silica on tap water, res change yesterday. Brown spots were visible before res change but less noticable. Should I wait and see or calmag? PH 5.6, EC 1.12
Week 3
Leaves. Other
4y ago
4
5
Solved
Maincard
Need help
Is this from heat stress or calmag deficiency it's day20, using tap water ph6, 5. Didn't use any calmag so far. thx
Leaves. Other
4y ago
3
4
Solved
Ryder
Nutrient issue or pests?
wondering if anyone can help me on what to do about these leaf issues, any advice is greatly appreciated.
Leaves. Other
6y ago
1
1
Solved
Pisolo
brown spots
I'm finding this yellow spot all over the plant , mainly in the older leafs . I'm using drinkable water pH 7 with really low nutrients , but it's an auto and in the last grow I almost overfed my auto with little more nutrients , What can it be , maybe the water with low minerals
Leaves. Color · Dark-brown
Leaves. Other
5y ago
7
6
Solved
Flamingo21
Nutrient burn?
Soil- Fox farm ocean forest. I barely add any extra nutrients only bio root and microbial mass pro, but this started 3 days ago and its getting worse so I thought maybe wasn't enough nutrients so I added biomarine yesterday and rhino skin 🤷♀️🤦♀️ did I make it worse???
Week 8
Leaves. Other
5y ago
2
2
Solved
Homestickycannabis
What is this please !!!!!
I have red spots,looks like rust ! appearing on mostly older leaves. Soil grow , pH 5.8-6.3. Flushed last night with 3 gallons ph'd wtr. Was using 3ml calmag 3ml tiger bloom per gallon . This is a auto flower as well.
Leaves. Other
6y ago
2