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
Small yellow stains
Horosho
started grow question 5y ago
Hello colleagues! Would you kindly help me and tell what these yellow stains may be caused by? I think I could set the ph-level too low, so it may be a deficiency of some nutrients, but the plant seems developing normally.
Solved
Leaves. Color · Yellow
1 like
w33dhawk
answered grow question 5y ago
I can only give you the good advice to trust Robert, he knows his stuff and is an absolute pro in his field.
1 like
Complain
Selected By The Grower
Cold_Farmer
answered grow question 5y ago
Roberts was faster than me. 😁 Moisture (drops of water) plus light = spots on the leaf So don't panic
likes
Complain
Roberts
answered grow question 5y ago
It's from getting the leaves wet
likes
Complain
Similar Grow Questions
Solved
sbgrow
What are these yellow/brown dots and how can I prevent more from developing?
Yellow/brown dots appeared midway through week 4 of flowering. More prominent on upper fan leaves. Gave it nutrient tea (flower nute/worm casting/CalMag) so hopefully that will help. Can’t test pH so difficult to tell if it’s lockout. Added new 600W light this week too.
Week 8
Leaves. Color · Yellow
Leaves. Color · Mottling
4y ago
2
4
Solved
Abacus
Need opinion
4/5 week to harvest.. do they look good? And why some leaves are becoming light green?
Leaves. Color · Yellow
Plant. Spaces between nodes
4y ago
3
Solved
Jworjik
What is my leaves yellow?
The pH is 6.5 watering and run-off. I use CalMag with the nutrients. what is the Reason of the yellowing of the leaves?
Leaves. Color · Yellow
6y ago
5
Solved
Dawel
Puntas y bordes amarillos/marrones ¿Carencia de Potasio?
My plant started flowering about 2 weeks ago and I noticed that the tips of the leaves are turning yellow, the older leaves have become somewhat pale, and the tips are going from yellow to brown. There are also brown spots on the medium-aged leaves. K deficiency?
Leaves. Color · Yellow
Leaves. Color · Dark-brown
4y ago
4
3
Solved
cannonone
Purple branches
Hey, many of my branches have turned purple, and a few leaves yellow.... I'm using bio grow (biobizz) since 5 days, is it calcium or magnesium deficiency? What to do? And can I start with flowering now? Thanks
Leaves. Color · Yellow
6y ago
1
3
Solved
StarPlatinum
Mites, root rot, or light intensity
Does anyone know about tiny yellow dots on new developing leaves are a sign of in early veg? Im growing in RDWC so I didn’t think mites would be an issue. I did notice one relatively brownish root as well, but the rest were all white and healthy. what should I do?
Leaves. Color · Yellow
4y ago
3
7
Solved
FOREVERGREEN
Hi Al I have a 140x140x140 atic tent how many pineapple express auto could I fit in there have a 660 watt dimmable ballast
Week 1
Leaves. Color · Yellow
8y ago
5
5
Solved
ganjermaster
Could be this yellowing on newer leaves a light deficency problem?
I'm using a Mars Hydro TSW2000 distance 95cm to the mother plant, 140cm to seedlings and power 55%.. testing with phone app Light Meter I'm getting around 8000 lux in mother and 6500 lux in seedling.. I've raised it to 70% power and now getting around 11000/8000 lux mother/seed
Leaves. Color · Yellow
Setup. Lighting
5y ago
1
4
Solved
kaiabel
More leave pictures because im starting to worry more. Need tips or kind words :-)
11.03 last feed all had ph 6.7 and 980ppm , 15.03 1200ppm 6.7 ph except the wc (short one) guess its was 980ppm. one fedd is around 15l for four plants, water is sitting for 4 days till its used. adding mag because tapwater has 90 cal 11 mag so its not near the 3 to1. Lights 80%
Week 10
Leaves. Wilting
Leaves. Color · Yellow
Feeding. Deficiencies
4y ago
1
3
Solved
GolfandWeed
Blueberry with yellowing leaves and burn tips
Fan leaves starting to yellow and seeing some tip burn on this blueberry It’s about 18-20 day into flower. I am growing in soil using organic dry amendments. She was fed 4-4-4 DTE 3.5 weeks ago and 4-8-4 DTE 4 days ago along with a high P tea. Always fed with water of ph 6.5.
Leaves. Color · Yellow
5y ago
1
Solved
420cfm
Am I overwatering or underwatering Too much nutrients or not enough? Should transplant to a 5g?
Week 8
Leaves. Color · Yellow
8y ago
7
4
Solved
MBnVA
Help!! Deficiencies? Nutes? Progress?
Looking for advice on all! Yellowing from bottom up..they have a ways to go as I'm on week 6-7. I have the FoxFarm trio and plan to go about 1/3 of recommended dosage according to their chart..I started them but maybe early as I'm using FoxFarm soil and it might have been too muc
Week 9
Leaves. Dropping off
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
4
3
Solved
Uncle_bill
Does this look like nutrient burn, or a deficiency? The PH is right at 6 and I did my nutrients for 3 gallons in like 4 gallons of water.
Week 2
Leaves. Curl down
Leaves. Color · Yellow
10mo ago
5
4
Solved
Aeries
Rust damage
Any idea on how to help her recover? There was metal wire above the canopy and when it rained the rust from it was dripping into her 😔. Fixed it now but I would like to help with healing if possible?
Week 7
Leaves. Color · Yellow
6y ago
2
3
Solved
Bryde
best leaf insects repellent
I have found a few bad insects on my plants past weeks. Does anyone have experience with neem oil? Is it worth a try or would I be better of buying something else? White vinegar with dishsoap didn't help much. The bugs are: grasshoppers, stinkbugs, spidermites & fungus gnats.
Leaves. Color · Yellow
Other. Bugs
3y ago
2
2
Solved
eeeewan
Beginning of Week 2 - Yellowing? Over/UnderFeeding?
Are these first leaves showing some yellowing or is this a normal shade for leaves at this point. Just wondering if I might have overfed the plants, or even the opposite. If anyone was able to share what they think it would be extremely appreciated.
Week 1
Leaves. Color · Yellow
Feeding. Other
3y ago
5
5
Solved
Findthelorax
Nitrogen Toxicity?
Nitrogen toxicity? What does this look like to you? I gave a full set of nutes 3 days ago and it looks like the spots/yellowing are getting worse. I watered today with plain ro water ph 6.8 until runoff and tested it, ppm was over 900 ph was 6.2.
Leaves. Curl down
Leaves. Color · Yellow
5y ago
1
2
Solved
hafthor_grows
Week Three slight leaf discoloration
In week three I'm seeing some slight discoloration. Not sure if it is something I should be concerned with. Using COCO, Worm Castings, ReCharge. Watering daily to keep the amendements active. Maybe I'm watering too much? Love to hear your thoughts. Thank you and happy growing.
Week 2
Leaves. Color · Yellow
5y ago
4
3
Solved
NelloFarms
Help with deficiency
Well my girl scout cookies are having problems and would like to get some advice on em. Im thinking its nitrogen toxicity or ph problems. I normal try to get 6.5 ph but my runoff is below 5.9 when i checked. I gave it some recharge and water last watering and its helping a little
Leaves. Curl down
Leaves. Color · Yellow
5y ago
1
3
Solved
GooeyGuy
Bright Green new growth? Is Co2 to blame?
New growth is very bright green. Just introduced an in-line UV filter to help combat and bacteria in system. Also just turned on the Co2 system and got it up to 850ppm. Why is new growth so bright green? Could Co2 do this?
Week 5
Leaves. Color · Yellow
4y ago
1
3