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Back to Grow Questions
Weird necrotic spots and dying leaves
FlowAest
started grow question 6y ago
Is this a disease or a bad root zone problem?
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Week 9
Leaves. Curl up
Leaves. Color · Dark-brown
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Answer
Chubbs
answered grow question 6y ago
It looks like a Calmag deficiency. I would add some with your next feeding. 1tsp/gal and the problem should stop. The rust spots on the leafs won't go away but shouldn't spread or get worsem
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Similar Grow Questions
Solved
SmylinPupil
Brown yellow leaves?
Can anyone help me? I had this issue with my last early Miss and thought it was a cal mag deficiency. I tried to adjust it last time during flower but it didnât help. I really only notice it on one of them so far but I would like to fix the problem sooner than later.
Week 8
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
6y ago
1
2
Solved
Dragosani666
Top leaves turn dark and curl - What can I do?
I've had Nitrogen and possible Cal/Mag deficiencies 2 weeks ago. Mid last week I started noticing some burn a the tips, so i dialed nutrients back again. By this weekend the tips of the leaves curled further and turned dark. The rest still looks a bit pale, but buds look good.
Week 7
Leaves. Curl up
Leaves. Color · Pale
Leaves. Color · Dark-brown
2y ago
4
3
Solved
RaS_Audio
My plants are suffering a Phosphorus deficiancy due to lockout due to low ph of soil. My first flush only helped for a while. As soon as the medium gets too dry damage resumes. what should I do? I went to check on them today and the amount of damage they took in 24 hours was bad.
Week 6
Leaves. Tips · Die
Leaves. Curl up
Leaves. Color · Dark-brown
6y ago
1
2
Solved
AvoidantGrower
Burnt? PH lock-out? too much Cal-mag??
What do you think is wrong with this plant? All the other plants surrounding her are fine so I'm not sure what went wrong with this one. I thought it was cal-mag deficiency at first so I doubled cal-mag when feeding but it only proceeded to get worse. The buds look fine tho đđł
Week 8
Leaves. Curl up
Leaves. Color · Dark-brown
4y ago
2
4
Solved
Misanthrope
Dry brittle leaves
Discoloured older leaves curling up at the edges and turning dry and brittle. I think my problem is over or under watering. I've been very careful to avoid overwatering so I'm leaning towards the latter but what I've read online suggests dry/brittle means overwatering. Thoughts?
Week 4
Leaves. Curl up
Leaves. Color · Dark-brown
5y ago
3
3
Solved
penthausgrow
Help diagnose hydroponic plants! Too much light/heat? Nutrient issue?
The plant's leaves on the right are wilting and drying out, while the leaves on the left are spiking. Just did a nutrient/water change but it didn't help, and it looks like growth is being stunted on the right plant. Humidity has been around 45-55 rh and temp 70-80F
Leaves. Curl up
Leaves. Color · Dark-brown
Plant. Wilting
6y ago
4
Solved
Schlurpypurpey
First time growing/Need help in late flower
Over the last 9 days my plant has gone from happy and healthy to sugar leaves pointing straight up near the top of plant and drying and curling up on the lower levels. Is this from too much light or did I over feed late in flower? First grow/ no diary. Can I save or do I chop?
Leaves. Curl up
Leaves. Dropping off
Leaves. Color · Dark-brown
2y ago
8
2
Solved
make_weed_not_war
Yellow leafes with Brown circles
So the Easy Bud in the tent Looks Like trouble. The Leafs turn yellow with brown circles⊠im clueless what It could be but it does not look Healthy. The Leafs at the deepest bottom Look Fine⊠All Others dont Look good..
Week 5
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
2y ago
1
2
Solved
lonergrower
Brown rust spots on oldest leaves
Brown rust spots on oldest biggest leaves with curling inward - the rest of the flower is fine, just some occasional small yellow spots. No sign of pests. Maintaining pH ~6.5 but have soft water. Suspect cal/mag deficiency or nitrogen toxicity. Thoughts?
Week 4
Leaves. Curl up
Leaves. Color · Dark-brown
Feeding. Deficiencies
1y ago
7
4
Solved
SolitudeCorners
Curl up and brown spot leaves
Leaves curl up and has brown spot around their blade is it potassium deficiency or salt built up? thank for any advice
Week 17
Leaves. Curl up
Leaves. Color · Dark-brown
6y ago
1
1
Solved
RallyAutos
What deficiency is this?
This green gelato autos fan leaves are starting to turn brown and curl upwards. Is this a nute deficiency or whatâs going on? Thanks!
Leaves. Curl up
Leaves. Color · Dark-brown
Leaves. Other
6y ago
1
8
Solved
Granddaddy_Terp
What's causing my brown crispy leaves!?
Over the past week my plants have taken a turn for the worse. Many leaves went from yellowing to browning to completely crispy! Other leaves have brown spots on them and some of the stems are purple.
Week 8
Leaves. Curl up
Leaves. Color · Yellow
Leaves. Color · Dark-brown
5y ago
2
8
Solved
Beginner86
Brown leaves on top
New question i have startet to give her this week (monday) less nutrients because next week i will start too flush and habe yesterday give her the âlast watering with all nutrients that her get on maxed per 1,5L waterâ
Leaves. Curl up
Leaves. Color · Dark-brown
Leaves. Other
5y ago
4
6
Solved
Grow_for_Happiness
Should I be worried or just a weirdo?
Trying to figure out if I should be worried that this plant looks so different than her sister. Same strain, same everything, even watered from same bucket at same time and amount. Last runoff 6.6ph Checking runoff again tomorrow when water. Herm or just a weirdo? #5 normal one
Week 11
Leaves. Curl up
Leaves. Color · Dark-brown
Plant. Other
3y ago
3
4
Solved
ZigkGrow
Leaf problem?
My leaves have stripes between light green and dark green. Is there anything wrong?
Week 2
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color · Dark-brown
6y ago
2
1
Solved
Goenndalf
More rusty spots
See this now on more and more leaves. Only upper fan leaves that get good light exposure seem to be affected from this and also the clawing. Have backed off the nutes completely for now and will add ground egg shells to the water in the hope its a Ca deficiency.
Week 8
Leaves. Curl up
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
1
Solved
GoldenWeedGrower
Brown tips and edge
Hi guys, can you please tell me if the signals on the leafs are normal in this stage or if I should be worried about ? Many Thanks đ
Leaves. Curl up
Leaves. Color · Dark-brown
3y ago
4
2
Solved
dataTwiiix
Brown area on leaves
Hello everyone. Some leaves on my plant are getting brown spots. I gave GHE essential (trace elements) and cal magnifique (0.3ml/L) this morning, as well as biographie Bloom. Iâm thinking it might be a magnesium deficiency, what do you think?
Week 7
Leaves. Curl up
Leaves. Color · Dark-brown
5y ago
4
2
Solved
OneBakedWalrus
HELP plant had massive overnight change
What happened to my friends girl? It was perfectly fine yesterday morning. This morning we checked her and all the hairs were brown and alot of the leaves were brown curled and crispy. Its been hot but to just change all at once is wierd. Some growth still pushing white hairs.
Buds. Other
Leaves. Curl up
Leaves. Color · Dark-brown
6y ago
3
2
Solved
TechDCo
1. Over Fed (seaweed?) 2. Burnt? Cauliflower.. 3. Calcium Deficiency 4. Hydrogen peroxide 12% Food-grade 30/70 Mix. Personally I think it's the hydrogen peroxide 12% mix, the hydrogen gave one of its atoms to the neuron of the Diatomaceous earth metal clay. With help from heat
Week 9
Leaves. Tips · Burnt
Leaves. Curl up
Leaves. Color · Dark-brown
3y ago
8
7