• Home
  • Forums
  • Medical Cannabis Cultivation
  • General Indoor Growing
  • Yellow tips on new growth

Yellow tips on new growth

  • Thread starter Thread starter Harry_Manback
  • Start date Start date Mar 20, 2021
  • Tagged users Tagged users None

Yellow tips on new growth

Harry_Manback Mar 20, 2021 136 Replies 44,210 Views
Page 2 of 7 · Replies 21–40 of 137
Prev
  • 1
  • 2
  • 3
  • 4
  • …
  • 7
Next
First Prev 2 of 7 Next Last

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 22, 2021
#21
if it’s just a few and they look more bad than good, than ya you can snip them off.,
but just a few maybe every other day till their gone or your happy..
but keep it clean in there!
 
Reactions: MIGrampaUSA and Harry_Manback
Quote Reply

MIGrampaUSA

Posts
3,732
Reactions
7,556
Joined
Nov 23, 2019
Points
263
Mar 22, 2021
#22
Harry_Manback said:
Will do! This time watered with plain water, next time gonna do 50% of recommended nutes and see how plant responds.




Would've been really surprised if my first grow went perfect :D Should I remove affected big fan leaves that are in the bottom of the plant or just wait for them to die off?


Thank you both for helping me figure this out! It's very interesting, how 2 different strains react to the same feeding and conditions. This one grew really tall even with LST, yet there are visible issues, sativa ones are smaller and barely show any issues at all, forming nice buds etc. This is a great and entertaining process, really enjoying whole experience so far! Good thing I can always ask for advice from more experienced growers :)
Click to expand...

I've got 2 tents going right now. 9 plants total. I frequently find myself mixing different nute strengths based on plant responses. I've got 2 early skunk, and 2 shiskaberries, and then 5 different strains (one plant each). It's pretty common practice to alter feeding schedules based on plant responses.
 
Reactions: DblUJ69, Harry_Manback and GNick55
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 22, 2021
#23
MIGrampaUSA said:
I've got 2 tents going right now. 9 plants total. I frequently find myself mixing different nute strengths based on plant responses. I've got 2 early skunk, and 2 shiskaberries, and then 5 different strains (one plant each). It's pretty common practice to alter feeding schedules based on plant responses.
Click to expand...
absolutely true!
i’m right now keeping everything the same as in nutes, but watering has changed for plants, a couple were overwatered back to back.. (i was sick and in pain) couldn’t think right.. anyways no excuses, but finally everyone is grooving along nicely.,
that takes some skill @MIGrampaUSA!
anyways don’t want to distract from @Harry_Manback’s thread..
 
Reactions: DblUJ69, lvstealth, Harry_Manback and 1 other person
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 22, 2021
#24
I'm just absorbing all the info I can, no worries!

Been trying to experiment with water amounts etc, since I've got ~5 gallon pots(25l). Just keep reminding myself that plants got individual responses as-well, pretty much like people. Haven't grown anything in quite a while and now just enjoying the process and emotions it evokes. Glad that I've started and so far this is one of the most welcoming communities!
 
Reactions: GNick55
Quote Reply

MIGrampaUSA

Posts
3,732
Reactions
7,556
Joined
Nov 23, 2019
Points
263
Mar 22, 2021
#25
GNick55 said:
absolutely true!
i’m right now keeping everything the same as in nutes, but watering has changed for plants, a couple were overwatered back to back.. (i was sick and in pain) couldn’t think right.. anyways no excuses, but finally everyone is grooving along nicely.,
that takes some skill @MIGrampaUSA!
anyways don’t want to distract from @Harry_Manback’s thread..
Click to expand...

I don't either, although I do think we covered a lot that will help @Harry_Manback as he finishes this grow and he'll take everything he's learned and apply it to the next one ... I'm always seeing something new and learning something new as I "grow" along ...
 
Reactions: Harry_Manback and GNick55
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 27, 2021
#26
A little update:

First plant doesn't seem to be getting worse. Leaves that already had yellow spots forming are just showing those progress, doesn't look like there are many more appearing.

Second plant of the same strain shows a bit different stuff tho. No yellow spots, just yellow tips on newer leaves like first plant AND dark brown spots on fan leaves. Here are some pictures. Finally got my new PH meter, so will properly measure and adjust water PH.

Otherwise everything else seems to be going fine, as you see not all leaves are affected. Just strange that this one had no yellow spots prior and just went straight into brown patches.

 
Reactions: GNick55 and MIGrampaUSA
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 27, 2021
#27
Harry_Manback said:
A little update:

First plant doesn't seem to be getting worse. Leaves that already had yellow spots forming are just showing those progress, doesn't look like there are many more appearing.

Second plant of the same strain shows a bit different stuff tho. No yellow spots, just yellow tips on newer leaves like first plant AND dark brown spots on fan leaves. Here are some pictures. Finally got my new PH meter, so will properly measure and adjust water PH.

Otherwise everything else seems to be going fine, as you see not all leaves are affected. Just strange that this one had no yellow spots prior and just went straight into brown patches.

View attachment 1107322View attachment 1107323
Click to expand...
just thinking it’s the effects from overwatering, worst case could have a root issue, though how far along are they? think you said 7 weeks last week.
 
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 27, 2021
#28
also can you post a canopy pic, like from above looking down.
 
Reactions: Harry_Manback
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 28, 2021
#29
GNick55 said:
also can you post a canopy pic, like from above looking down.
Click to expand...

Here are some canopy pics and a close up of one of the leaves I removed.





 
Reactions: GNick55
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 28, 2021
#30
yep, i think your nutrient mix is just off causing a K lockout or just too much in general.
but i’m just talking here meaning i don’t know those nutrients and would have to look up..
i’m hoping maybe someone uses those and can identify the problem more directly.
you can see burnt tips so thats obviously nute burn. the downward cupping can be from that too..
are they at 7 weeks flowering or?
 
Reactions: Harry_Manback
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 28, 2021
#31
GNick55 said:
are they at 7 weeks flowering or?
Click to expand...
Yup, 7th week ending and on Monday it'll be the beginning of 8th.

Will continue feeding them 50% of recommended nutrient dosage. Burnt tips were present for at least 1.5 weeks but brown patches appeared only on during this week. Other plant that had yellow tips and spots is looking better tho!
 
Reactions: GNick55
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 28, 2021
#32
Harry_Manback said:
Yup, 7th week ending and on Monday it'll be the beginning of 8th.

Will continue feeding them 50% of recommended nutrient dosage. Burnt tips were present for at least 1.5 weeks but brown patches appeared only on during this week. Other plant that had yellow tips and spots is looking better tho!
Click to expand...
sometimes brown patches are caused by watering too frequently?
 
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 28, 2021
#33
GNick55 said:
sometimes brown patches are caused by watering too frequently?
Click to expand...
8th week flowering? mmm, you could have a 12 weeker there!
 
Reactions: Harry_Manback
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 28, 2021
#34
GNick55 said:
sometimes brown patches are caused by watering too frequently?
Click to expand...

Reduces the amount of flowering to 2x per week, and giving them like 2.5-3l(0.6-0.8 gallons) water per watering with 5 gallon pots.


GNick55 said:
8th week flowering? mmm, you could have a 12 weeker there!
Click to expand...
As long as it works out it's OK I guess :) Average time for Gorilla Cookies should be like 10 weeks, according to most of the sources.
 
Reactions: GNick55
Quote Reply

GNick55

Staff
Supporter
Posts
15,500
Reactions
49,670
Joined
Jan 11, 2020
Points
438
Mar 28, 2021
#35
that’s a good amount of water per the 5 gallon.
not sure if this will help out any.. but good to have, as memory can be off at times, haha..
 

Attachments

  • 570CAE48-0A68-4EDF-8195-46016159EB3A.png
    698.7 KB · Views: 403
Reactions: PiffinOut, DblUJ69 and Harry_Manback
Quote Reply

mancorn

Posts
1,901
Reactions
4,217
Joined
Aug 2, 2011
Points
263
Mar 28, 2021
#36
Harry_Manback said:
Checked for pests and mildew
Click to expand...
Do you have a loupe or magnifying glass to inspect your leaves? Most of the problematic critters are too small to see with the naked eye. And even stuff like powered mildew is easier to diagnose with a loupe. Some of your leaves look suspect for critter/PM while others look like a nutrient burn. Just to make sure, you’re testing your pH after adding all your nutrients? (Never used the Fish-Mix, but most fish hydrolysate really knocks down your pH. At recommended rates it will take my water from 7 to 4.)

You might want to do a slurry or pour through test (https://www.extension.purdue.edu/extmedia/HO/HO-285-w.pdf) and check that the pH of your soil is OK. And pick up a cheap ($10-$20) jewelers loupe online if you don’t have one to inspect your plants.
 
Reactions: GNick55 and Harry_Manback
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 28, 2021
#37
mancorn said:
Do you have a loupe or magnifying glass to inspect your leaves?
Click to expand...
Yup, been using magnifying glass to check for pests and couldn't find anything. Plus two sativa plants nearby doesn't show any issues at all, I reckon if there would've been any critters they'd be on all the plants in growtent.


mancorn said:
Just to make sure, you’re testing your pH after adding all your nutrients?
Click to expand...
Thing is, I was only testing soil PH after watering\feeding them, since I had no PH meter for water, now I've got one and will be testing water after adding all the needed nutrients in + doing soil test after. Excluded FishMix for now tho.


Been checking for similar symptoms and those brown spots sure do look a lot like phosphorus deficiency:

Phosphorus Deficiency - Growing Exposed

Phosphorus, is a mobile nutrient and is considered vital for plant health. Numerous catalytic process involving photosynthesis and energy transfer within the
growingexposed.com
 
Last edited: Mar 28, 2021
Reactions: GNick55
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 28, 2021
#38
Ok, so my soil PH meter was busted, apparently. Not showing correct measurements, so I've been watering my plants with PH being way too high. I think it wasn't initially broken but might've gone "bad" sometime into the growing process.

This would prolly explain all the lockout issues etc.
 
Quote Reply

mancorn

Posts
1,901
Reactions
4,217
Joined
Aug 2, 2011
Points
263
Mar 28, 2021
#39
Harry_Manback said:
Ok, so my soil PH meter was busted, apparently. Not showing correct measurements, so I've been watering my plants with PH being way too high. I think it wasn't initially broken but might've gone "bad" sometime into the growing process.

This would prolly explain all the lockout issues etc.
Click to expand...
I had a old battery in a EC meter a few years back and an old bottle of synthetic ferts I found in the garage. My readings were super low compared to the instructions so I keep pouring in the juice (figuring it must have lost it’s mojo). After a week or so I notice the meter is displaying all these weird random characters when I turn it on, and then it finally poops out. Throw in a new battery and my ppm is over 2k.

You need to calibrate your meter. The cheap ones go wacky fairly quickly and only last about a year or 2 before needing to be replaced.
 
Reactions: Harry_Manback
Quote Reply

Harry_Manback

Posts
51
Reactions
68
Joined
Mar 9, 2021
Points
18
Mar 30, 2021
#40
Fed the plants today, 50% of recommended nutrients. Measured water PH and adjusted it after adding those nutrients. Left it around 6.3, so hopefully this will fix all the lockdown issues and plants continue flowering as they should. Had to cut some of the dry and most affected leaves, but trying to not cut too much in a single day.

On the other hand Sativa(Super Lemon Haze) is doing really good, no damage visible, great colas forming and the smell is out of this world! They're shorter, but so far looking way more promising. Kinda interesting that with the same feeding and wrong PH measurements they've been doing so good while Indica plants aren't. Still got time, it's just the beginning of 8th week, so if it'll take couple more weeks than average(10 weeks) for Indica it's not really an issue.
 
Reactions: GNick55
Quote Reply
Page 2 of 7 · Replies 21–40 of 137
Prev
  • 1
  • 2
  • 3
  • 4
  • …
  • 7
Next
First Prev 2 of 7 Next Last

Thread info

Replies 136
Views 44,210
Started Mar 20, 2021
Latest post May 18, 2021
Starter Harry_Manback
Forum General Indoor Growing

Latest posts

  • what is causing this on my plants
    • Latest: Dinkwinkerson
    • 13 minutes ago
    Basic Growing Information
  • D
    2026 Outdoor Grows! let's see em!
    • Latest: danmac69
    • 22 minutes ago
    General Outdoor Growing
  • Blazing heat, smoke-filled skies, illegal! What could possibly go wrong?
    • Latest: Oldchucky
    • 46 minutes ago
    General Outdoor Growing
  • K
    When do i increase my light
    • Latest: kramsey1127
    • 56 minutes ago
    General Indoor Growing
  • The Nepali Highland Growers thread.
    • Latest: Oldchucky
    • Today at 5:23 PM
    Grow Diaries
  • Home
  • Forums
  • Medical Cannabis Cultivation
  • General Indoor Growing
  • Yellow tips on new growth
  • Contact us
  • Terms and rules
  • Privacy policy
  • Help
  • Home
Community platform by XenForo® © 2010-2026 XenForo Ltd.
Menu
Log in

Sign up

  • Home
  • News
  • Classifieds
  • Forums
    • What's new Featured content New posts New Articles New articles New products Latest activity
  • Social
  • Strains
  • Live
  • Learn
  • Brands
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?