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Back to Grow Questions
Nitrogen toxicity?
RallyAutos
started grow question 5y ago
Are these dying leaves a result of the nitrogen toxicity or something else? Thanks for all your help!
Solved
Leaves. Other
likes
The8thChevron
answered grow question 5y ago
Could be really bad light stress... My guess would be that a high PK nute has locked out calmag and other micronutrients. If you're using a booster, roll it back a bit. As always, check your pH and EC going in and coming out.
1 like
Complain
Selected By The Grower
Fruitgrower
answered grow question 5y ago
I had this before and although not entirely sure I put it down to a pk overdose. N Overdose looks very different - dark green claws.
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Similar Grow Questions
Solved
Carrascovsky
Plant showing weird stains
Does anyone know what could be causing variegation on my plant? They seem to be growing even faster then the other 2, but I am afraid it could be a virus or something that could spread on my growth tent.
Leaves. Other
5y ago
2
2
Solved
ButtersStotch
I believe I fixed my nute lockout a couple of weeks ago. But since flowering has started I’ve been getting a deficiency on the older leaves from the bottom moving to the top. I’m wondering if this is A nitrogen deficiency as I’ve backed off on the nitrogen since I’ve switched to flowering nutes. I’m not really sure how to proceed or if I’m even right.
Week 21
Leaves. Other
6y ago
1
1
Solved
GrowersParadise
Progressing spots
Still have an issue. No pests that I’ve seen, Cal didn’t fix it, flushed res, lowered EC to half strength, problem continues. Temp 75 RH 50-60% PH stable at 5.8. I’m Stumped. Could it be my well/tap water? Spots are very dry/brittle
Leaves. Other
4y ago
3
5
Solved
Tubington9
When to defoliate after switching to flower?
Switching my plants to flower this saturday, how long should I wait for them to adjust before defoliating? Also, how much is too much, was thinking of clipping at least 50% of the fan leaves.
Leaves. Other
5y ago
1
2
Solved
MrBigGrow
Slight yellowing of top leaves
I am noticing that the top leaves are developing this light green coloration. Is this normal or could it maybe indication of something I did wrong?
Week 5
Leaves. Other
3y ago
1
1
Solved
Bee_Bee
Leaves
I have two leaves on my cbd crack that have gone like this it’s the two lower leaves is this normal or is something wrong? All the other leaves are fine.
Leaves. Other
4y ago
1
1
Solved
420Highlifecouple
Red mite or bug infestation ID help and how to cure
Hey guys my leaves have white spot due to red mite infestation.Any remedies to cure it?bad photo im sorry.
Leaves. Other
3y ago
2
3
Solved
Lplategrows420
Rust spots
Rust spots on leaves any ideas people newbie so no idea thanks
Week 8
Leaves. Other
5y ago
1
1
Solved
moswald14
should I be concerned about this hole on my leaf?
hole showed up today. wondering if this looks like a pest did it or if its something that just happens from time to time. I read that holes can appear in leaves when there isn't enough potassium, but I'm feeding with molasses so that shouldn't be an issue.
Week 3
Leaves. Other
3y ago
6
3
Solved
Weedywade89
Should i wait ??
Tomorrow will make it two weeks of flushing day 1 i used foxfarms sludgehammer then nothing but plain ph watar everything ok butthe leafs are still green my question is should i wait till they fade yellow no rush jus wondering?? Thank u guys in advance for any advice
Leaves. Other
6y ago
5
5
Solved
jeannoTapin
Leaves yellowing, tips and edge burning and strange dot patterns
Hello, D57 (of 63/70 days) Is it over or under feeding? it's been 2 weeks leaves are yellowing et 5 days some dot pattern burns appear? Been giving full dose of biobizz for a few weeks. What could be the root cause?
Week 9
Leaves. Edges burnt
Leaves. Other
Feeding. Deficiences
3mo ago
12
9
Solved
GrowGuy97
Defoliation
Should I take of some of the big fan leaves to open up the bud sights?
Week 3
Leaves. Other
5y ago
1
1
Solved
DjangoBig
Leaves folding
Can someone tell me why are these leaves folding up in the middle? This plant has 4 weeks of flowering, halfway through. Thanks
Leaves. Other
4y ago
1
Solved
einamio
First time DWC, day 70, 3 weeks in flower. Nasty rusty spots appear on lower leaves. Is this CalMag or else? Please help understand and fix, thank you :)
I'm using TA Tripart, current EC is 1.6 - ph 5.5-6.5. Everything was smooth until week 10. Two weeks ago I started adding Plagron Power Buds and Green Sensation. Yesterday added CalMag to see if it helps, but it doesnt seem to... She drinks a lot, ph mostly goes down, EC static
Week 11
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
Leaves. Other
10mo ago
8
6
Solved
Deer420
6 den 12/12
Ahoj, mám otázku.. Nechat nebo probrat listí?
Week 6
Leaves. Other
2y ago
4
Solved
PinkParrot
Leaf speaking
Hi, one of my plants show sign of something but i'm not sure what it is.. Mg deficiency (or Potassium / Nitrogen ?) I never used Platinium before. Ref : Photo [Day 19 - A] & [Day 19 - B] --> It's the same plant, lowest leaf right and left. Color difference is due to the camera
Week 2
Leaves. Other
3y ago
5
3
Solved
Drmambo
First timer, am I doing ok?
Just checking in and asking your opinion on how I'm doing. We've hit the 6 week mark now and was wandering if she looks OK, pineapple express auto 47-60%humidity 18-21°. Water her ever couple days with water and coco mix.
Leaves. Curl down
Leaves. Other
Plant. Other
5y ago
1
3
Solved
Herikus
Help, what are those weird yellow spots in late veg?
Hello everybody, I've checked in on my plant after I was away from home for 2 day. Now I come back to see these ugly yellow spots? During day 23°C / 55% humid. During night 18°C / 50% humid. Checked the whole bud, but no insects. My other ideas are mold or stress from the light?
Leaves. Color - Yellow
Leaves. Other
Other. Mold
1y ago
1
2
Solved
Horseluisweed
Tras el riego de hace un par de días parece que a la planta no le sienta bien, el sustrato está muy húmedo, retiene demasiada humedad quizá, (coco,hummus y vermiculita) La he sacado al exterior a que le dé un aire? El fermentado de té de hummus me temo que haga hongos x7
Week 3
Leaves. Other
4y ago
3
4
Solved
LK_Smoka
Advice?
Done with LST. I added a little overdrive.. just so anxious. My plants seem in line with pics from other Growers diaries. Any advice appreciated. Sometimes I’m afraid I overdo it with early topping and I did a lot of lst on these. I’m new at this. Thanks for reading! 🌱
Week 6
Leaves. Other
Feeding. Chemical composition
Techniques. LST
4y ago
3
2