The Grow Awards 2026 🏆 
Worms? TMV?
LilBearSmallsstarted grow question 4y ago
More and more discoloration and brown spots are appearing on the leaves of my plant. This is appearing on all new leaves. I don't have a good magnifying glass, but I tried to take a picture of the discoloration and I don't know if these white and dark dots could be worms?
Open
Leaves. Color - Yellow
Leaves. Color - Black or grey
likes
Answer
Ultravioletanswered grow question 4y ago
Really need details on the grow, pictures and symptoms run in conjunction with environmental conditions, leave tips slightly turned upward, looks what may be the start of powdery mildew, browns spots could be a number of things. I'd venture a guess the environment is not optimal, more details plox brother, I will check back later.
likes
Complain
Similar Grow Questions
Solved
stonedJesus
Please help. Last plant died exactly like this. Yellowing drying leaves from the bottom on all fan leaves while shoots get stunted / eventually affected.Transp recently from 1g > 5g. Seemed ok at first day after (no wat) then leaves started rapidly yellowing / drooping. Tent is fairly small 40x40x120. Could it be the heat ? Also took out humidifier but still in same room tent vents. Is Canna Pro Plus watered between 5.8-6.2 ph ?5y ago
5
8
Solved
Mike_269
Nitrogen deficiency but why?My Critical Auto is more and more wilting and yellowing. Most likely due to nitrogen deficiency. Some have red tips on . PH of soil was normal, how can I make sure that it's not nutrient lock anyway? Should I flush it nonetheless? Feed it more? More info in my diary.Leaves. Color - Yellow
2y ago
2
2
Solved
JeremyBeadle
Yellowing and dry/brittle leavesHello all,
I've noticed the leaves are starting to yellow and some are getting quite dry/brittle. Is this a sign of overwatering or perhaps nitrogen deficiency?
It is on the same watering schedule as my other plant which looks healthy but obviously has different genetics.Week 10
Leaves. Color - Yellow
5y ago
8
6
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 muc4y ago
4
3
Solved
PietertjeOpDeLijn
Newer leaves also turning yellow at the tips. Flush?Newer leaves also turning yellow at the tips. Started to give the plant Terra Bloom,Sugar Royal, Pure Zym and power roots again after only giving it water for 2 weeks long.
Is this a nutrient burn and will a big flush help it out?
Doesn't a big flush overwater the plant?Leaves. Color - Yellow
3y ago
4
9
Solved
HAPPYWEEDS
IMPORTANT excess/deficiency? What's happening? Flowering is in dangerWhat's happening here? I think it could be Fe deficiency, Mn deficiency, S deficiency or maybe K excess. But I'm not sure about diagnostic and I think I can have more than one problem. Please help, I don't know how to solve it and I see how flowering is very slow and weakLeaves. Color - Yellow
Leaves. Color - Pale
Leaves. Color - Mottling
4y ago
6
7
Solved
CookiesAndCake
Yellowing and light green leavesHello growers!
My AK has been getting some yellow leaves, big fan leaves and small new leaves at the bottom, and looks less dark green. Is this a deficiency (looks like nitrogen but I don't want to give it even more nutrients) or is it just self defoliating? Any ideas?Week 6
Leaves. Color - Yellow
5y ago
2
2
Solved
hazaj
Dark leaves, clawingSo couple weeks ago my plant started turning into dark green colour . Using biobizz nutrients, using always 1/2 dosage, sometime even less in big pots. I though it was nitrogen toxicity. But not sure anymore. If anyone has idea what it could be? Using 0,5ml of their growLeaves. Color - Black or grey
1y ago
4
6
Solved
BullWeedDog
Hojas de mi plantas puntas amarillaslas puntas de las hojas de mis plantas están amarillas no en todas sobre todo la de la parte de atrás del indoor, tengo reflector 400w a unos 50cm de distancia de las plantas, temperaturas a unos 28C. Que puede estar ocasionando esto!Leaves. Color - Yellow
Setup. Strains - Photoperiod
Techniques. ScrOG
4y ago
1
1
Solved
Closet01
Maybe nutrient burn or?My biggest plant has started looking a little sick, have a feeling it may be some type of nitrogen toxicity? Maybe it’s just got some nute burn? I have flushed it out and will leave it be for a few days and hopefully it perks back upWeek 4
Leaves. Color - Yellow
5y ago
1
Solved
EirikBloodAxe
Stress or deficiency?Two leaves around main Cola. Yellowish with rust spots. Had its first day in tent with low humidity. Did some first time defoliation to increase air circulation. Stress or Potassium, Calcium deficiency?
Northern lights auto, 8-9 weeks. Canna Coco Nutrients.Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
stupid
Potassium and Calcium deficiency?Both plants are autos on day 49 after sprouting.
Plants didn't get any fertilizer during veg. I noticed deficiencies about 2 weeks ago, and added BioBizz Bio-Bloom, Top-Max and CalMag to next waterings.
Planning to alternate water and feeding for the rest of the grow.
any adviceLeaves. Tips - Burnt
Leaves. Color - Yellow
Setup. Strain - Autoflowering
1y ago
2
3