The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Spider mites?
meangreenmachine
started grow question 4y ago
What do you think the problem with leafs are during my week 4? I have noticed the there was discoloration on some levels and somewhat looks like someone might be eating from underneath of the leafs.
Solved
Week 4
Leaves. Color - Dark-brown
likes
ChitownCannaChica
answered grow question 4y ago
Looks like just damage and possibly the start of thrips
likes
Complain
Selected By The Grower
gottagrowsometime
answered grow question 4y ago
That's just old N tox leafs, degradation is all buddy. But to be safe. Check underneath leafs for eggs and of course you'll see webs. Good luck pal
1 like
Complain
Similar Grow Questions
Solved
wazzaaaap
Brown spots on leaves
Hi, some white widow auto leaves have these brown spots and some burned edges and tips. What deficiency or toxicity is this? Growing organic, using biobizz nutes.
Leaves. Edges burnt
Leaves. Color - Dark-brown
1y ago
1
Solved
blasterw32
Brown stains on leaves edges
The top leaves on my GG#4 started to get brown on the edges. Initially I thought it was light burn, but the stains kept progressing after I readjusted the light distance. Is it a nut burn?
Week 8
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Happy_Rakosnicek
?
Leaves. Color - Dark-brown
5y ago
1
1
Solved
OrionGrowgul
Was ist das?
Meine Gorilla Skittlez (siehe Tagebuch) wird relativ hell und bekommt komische Flecken. Ich gieße abwechselnd mit Hesi Bloom (2,5ml/L) , 1ml/L Calmag und nur Calmag 1ml/L Dachte die Flecken kommen von zu wenig Calcium Magnesium. Jetzt steigt aber mein PH Wert von 6,8 auf 7,4.
Leaves. Color - Dark-brown
7mo ago
2
4
Solved
Misanthrope
Leaf damage/discolouration
The yellowing is from an earlier issue but now I'm noticing brown spots and the leaves curling up, some getting crispy-ish. I recently lowered the lights a few inches, knowing I was pushing the safe limits. Is this from the lights or is more likely a nutrient/pH imbalance?
Week 11
Leaves. Curl up
Leaves. Color - Dark-brown
Leaves. Color - Mottling
4y ago
2
2
Solved
EastCoastFireHouse
Spots wont go away
Brownish orange spots middle of the leaf on upper half of canopy. Been feeding cal mag advanced 3 part and terpinator. Ph remains stable at 5.8 to 6.0. Should I flush with ph water then add half nutes with more cal mag. Very confused please help. Dwc btw 4 th week flower
Leaves. Color - Dark-brown
6y ago
1
1
Solved
TopDrippinPimp
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
diamondtrichomes
I added a couple pics of what looks like rust spots on the leaves of only the tall plant in 7 gallon. I’ve given these two plants the exact same feeding so not sure what is causing it.
Week 5
Leaves. Color - Dark-brown
7y ago
2
2
Solved
Frost
I’ve been using Biobizz AllMix and I fed her Advanced Nutrients Sensi Grow. Even tough flushed her twice, it has not stopped yet. Burned leaves symptom continues. Seems like it’s going worse.
Week 8
Leaves. Tips - Burnt
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
5y ago
4
10
Solved
WitekMajestatyczny
Leaves still goes yellow after flush with pure water 6.5pH, then only water with Biobizz Fishmix and last time all nutrients but 50% of recommended.
After last question with those symptoms, I flushed her with pure 6.5pH water, then next time started to adding only Biobizz Fishmix, and another next time I started to add all nutrients again but 50% of recommended. Buds, the white ends of the flowers begin to turn brown as well.
Week 6
Buds. Other
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
3
2
Solved
Noela
Deficiency/Light Stress Issues
What else can I do? Brown curled tips and spots on older fan leaves climbing up towards main cola. Flushed with pH’d RO yesterday, but was only able to get pH to 6.7, also added small dose CalMag at end of flush. Light wattage has also been reduced by half for the last week.
Leaves. Tips - Burnt
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
3
3
Solved
EvilBuds
Leaves turned brown ! Please help
Hello, Got a problem with this plant, it's 15 days old and there's brown on it's leaves... It does not grow as fast as the others. What could be the problem ? Platinium Royal Mix - Biobizz root-juice 2mL/L + Humic Fulvic Acid 3mL/L spray + Biobizz bio-grow 1mL/L 27°C / 50% H
Leaves. Color - Dark-brown
3y ago
1
1
Solved
Troy_McClure
soil ph is erratic fox farm ocean forest : pro-mix (3:1) - ph 6.3-6.8 run-off ph: plant 2: 4-6 plant 1: 5-6.8 watering / feed ph: 6.3-6.45 soil ph after water /feed: 5-7 soil ph when dry: 7.5-8 both plants treated 100% the same phosphorus deficiency / ph imbalance help please
Week 10
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Stem - Red or purple
6y ago
4
3
Solved
G_news
Cal def ?
Calcium deficiency? Iv been using cal mag for a while now one tablespoon for 3 gal bucket. Thank you
Leaves. Color - Dark-brown
4y ago
2
5
Solved
StonedWolf
Hello fellow experienced growers, is what I see on this leaf, combined with a reddening of leaf and main stems really signs of a CalMag deficency? Or do I have another problem? And is 1 ml CalMag Agent enough to counter it? Dont wanna risk anything so close to the goal...
Week 9
Leaves. Color - Dark-brown
7y ago
3
2
Solved
Cariboo_OG
overall the leafs themselves look alright.. minus the yellow colour and the few rust coloured spots..? help..
Week 10
Leaves. Color - Dark-brown
6y ago
3
1
Solved
MediciGrade
Brown spots and yellowing pictured above. My best guess is a Cal/Mag deficiency. Was feeding Botanicare Cal-Mag Plus at 1 ml/l up until ~2 weeks ago (friend has been watering while I was out of town). Before I feed her, any advice on what the problem is and how to correct it?
Week 14
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
2
Solved
MaryJaneUSA
Rusty and crispy leaves?
What are the leaves getting rusty and crispy?
Week 15
Leaves. Color - Dark-brown
Leaves. Other
6y ago
6
5
Solved
Vitora
Yellow leaves - moby dick
The olders leaves started to die and to turn this yellow-brown color. I thought it could be the temperature (I am about to receive my temperature hydrometer to measure that), or over/less watering, or nutrients. The plant looked great a week before.
Week 4
Leaves. Color - Dark-brown
5y ago
2
3
Solved
SLuGGeRNauT_420
Wtf
Wtf is this just switched to remo nutes not overwatering only feed every 2 or 3 days when the medium is not damp
Leaves. Curl down
Leaves. Twisted
Leaves. Color - Dark-brown
4y ago
1
3