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Back to Grow Questions
Rust spots on leaves
Aragon
started grow question 5y ago
What are these weird rust spots? I'm guessing too much cal-mag?
Solved
Week 4
Leaves. Color - Yellow
likes
TimTheTerpMan
answered grow question 5y ago
Looks like a possible deficency crawling in. She's looking light in color also. Try feeding with a higher nutrient dose. 🤘😤
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Similar Grow Questions
Solved
Stupenico
Botton leaves are turning yellow then fading away
Some bottom leaves of my three plants are turning yellow, it looks to me that they don't have enough nitrogen. I have tried to double biobizz nutriment the last two times I have watered them but it doens't seems to make any difference. What can cause this issue ? Thank you
Week 11
Leaves. Color - Yellow
3y ago
8
6
Solved
JoeNathan
Yellow parameter leaves
My lady is turning yellow around the edges of the lower leaves others are dark green. I just did a top dressing less than a week ago I used feather meal kelp meal alfalfa meal and some bat quano. Looking at charts it seems to be a nitrogen deficiency. I know feather meal is slow
Week 4
Leaves. Color - Yellow
2y ago
6
5
Solved
NanoGrows
Damaged fan leaves
Hello, I can't understand why some of leaves are loosing colour at the tips. Sunday I mixed the nutrients, it was at 6.3 so I did not adjust. Today risen to 6.4.
Week 4
Leaves. Tips - Thick
Leaves. Color - Yellow
Leaves. Color - Mottling
6y ago
2
2
Solved
Changinator
Deficiency
Hi! Is my grow trying to tell me something? Like a nutrient deficiency? I’ve never done this before. Appreciate any help 🙏❤️
Week 6
Leaves. Color - Yellow
3y ago
4
7
Solved
Grow_N_Smoke
Odd growth, rusting/yellowing leaves?
6 plants same strain. Coco/perlite, noticed nutrient burn few weeks ago did 2 waterings using 1/4 strength nutes of usual. Back to usual str but a little less. One plant wilting/droopy? Some good buds on one but others not so much? What's going on here? Lower growth looks ok?
Buds. Not fattening
Leaves. Color - Yellow
Plant. Other
2y ago
2
5
Solved
Tombone
Is this sign of deficiency, to close to light, or toxicity? If so any ideas how to fix? Thinking of attempting a flush later??
Leaves. Color - Yellow
5y ago
2
3
Solved
val95
does this need more CalMag/ K?
im not sure what this deficiency is. im currently feeding them about 0.8ml/l Biobizz CalMag, pH around 6.5-7, RQS Easy bloom at half strength which is what they recommend for autos
Leaves. Color - Yellow
4y ago
3
Solved
crazycatlady0
Yellow shiny spots on leaves
My plant has yellowish shiny spots developing on the leaves. New plant growth looks yellowish/light green. How do I fix it?
Week 2
Leaves. Color - Yellow
5y ago
4
Solved
Alejangrow
Anybody got any idea with what's going on with these 2? The 2 larger plants are showing the signs of some stress on the fan leaves. Oddly enough the runt of the 3 is not showing these signs. Has anyone seen this before or can help me identify it?
Week 15
Leaves. Curl up
Leaves. Color - Yellow
6y ago
1
2
Solved
Smile420
Leaves are lemon
Leaves are lemon colored after feeding. I normally give 900 PPM 6.3 PH. Previously I was missing Mg, so I put Cal-mag every time I gave water. Is there too much Cal-mag? Leaves are paper thin for only 1 day. Help me please. thanks for all the answers the 4th picture is 1 day be
Leaves. Color - Yellow
3y ago
1
Solved
Sq00
Have you ever seen that?
I'm thinking either over-fertilization or Senesens, what do you think? Thanks guysIf you need more photos, let me know. I used to fertilize every time, but for the last few days I've been watering with plain water. Terra Vega 5ml/L Calmag 1m
Leaves. Color - Yellow
3d ago
1
2
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
2y ago
2
2
Solved
Anonymous_2022
Deficiency issues with Biobizz
Hi Growmies hoping for some advice please..Ive been using organic feed for the last month or so (BioBizz) since doing so finding deficiency issues in veg and flower grrrr, PH around 6.3-6.8 in soil and run off around 6 -6.2.. I see the dont do a Pk booster any recommendations?
Week 3
Leaves. Color - Yellow
3y ago
3
4
Solved
XtoVall
Problem in 5 Week of Vegetation
Now in the 5 week of vegetation. The plants are Tropical Gelato cuttings. Everything was great until recently. They looked great. After another light fertilization, the condition of the plants continued to deteriorate. Soil PH value is between 6 and 7. Can Someone help?
Leaves. Curl down
Leaves. Color - Yellow
1y ago
1
Solved
Waltwonka
Magnesium deficiency?
Does this look like magnesium deficiency?
Week 7
Leaves. Color - Yellow
5y ago
2
2
Solved
Skipi007
leaves are turning yellow towards the end
Leaves. Color - Yellow
5mo ago
3
Solved
KittyKitKat
Lockout or not enough nutrients ?
Hi grow fam, I’m starting to see some slight discolouration on a couple of leaves. I’m wondering if it’s being nutrient deprived or locked out. I am leaning on the side of caution by using GH’s light feed schedule. No signs of root rot inside the bucket
Week 3
Leaves. Color - Yellow
3y ago
3
4
Solved
Bunterbiber
Leaves turning light green -- yellow (after 12h day/night rhythm)
Since I started with 12h daylight/dark rhythm a lot of leaves started to turn yellow (older and lower ones first, some branches turned red). What I did: PH value=6.5. I added CalMag--no effect. I flushed the soil --no effect. Do you have any ideas? Thx green thumb-friends 👏
Week 19
Leaves. Color - Yellow
1y ago
2
4
Solved
Autogrowing
Noticed two leaves where the are damaged on the end, a different color, and a little dryer than the rest of the leaves.
Starting bloom nutrients this week. Haven't yet. But I noticed this leaf, there is one more like it. Any idea what it could be?
Leaves. Wilting
Leaves. Color - Yellow
Plant. Other
4y ago
1
Solved
Ema26
Deficiency?
What’s up guys can anyone confirm a nitrogen deficiency? If not could you please advise on what the problem is? Many thanks! Some old and new photos, hard to see in some because of the light!
Leaves. Color - Yellow
6y ago
3
5