Can someone identify what going on?

Spike739 · Jun 10, 2021

New grower and I noticed this on one of my leaves this morning. Wanna nip it in the bud before it becomes a major problem. Growing in

OF using a Mars Hydro TWS 2000, started light off at manufacturers recommend hight and setting and have since moved it up to 3 feet at 100 % on the dimmer. Running fans and a humidifier to keep my VPD in the optimum range. Any help or suggestions would be much appreciated

nizmoKush · Jun 10, 2021

A lil more info might be needed..

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant.

Spike739 · Jun 10, 2021

nizmoKush said:
A lil more info might be needed..

Please fill in this form: (copy and paste part is below, this first one tell what specifically to include)

-Problem: yellow spots
-Medium/grow method: soil; OF.
-Feed and supplements used: None at this time
-Water source: declorrinated tap pH 5.8 6
0
-Strain and age 3 weeks AK 47 autoflower
-Climate: night 77F 70% RH Day 82F 70% RH
- Light used: LED, mars Hydro tws 200 wattage; 300 light cycle hours ( 18/6 , etc.); distance to tops....3 feet 100% power

Ryno_nuggs · Jun 10, 2021

Alot of times them little dots can be from a calcium deficiency. In your case, you are running fox farm cean Forrest which is known to run hot.

I am not an expert however.

If there are too many nutes it will lockout other nutes. That is my guess. I can't find this lockout chart I want to show you. I know @Mañ'O'Green has it handy, and will set you on the right path.

Fill out that form for the infirmary gurus, they will want it.

Have you used any additional nutrients besides the food?

Just use water for now, until we get an expert in here to help you. Don't overwater, make sure you give it a few days in-between, but never let it dry out or it will become hydrophobic.

Your girl is very dark green, which is a sign of too much nitrogen. That seems to be a common issue in the infirmary section with ffof. The experts should be by soon.

Ryno_nuggs · Jun 10, 2021

Hey @Proph I noticed your active now and would like your opinion on this if you have a chance bro. I'm sure you were already making your way here.

Thanks bro!

TheHappyClique · Jun 10, 2021

Could be a number of things rapid enviro changes root zone pH c/mg Def, poor medium , too wet medium , fan blowing on leafs , fungi I had a similar issues and am in recovery with 2 now my issue was fungi related yours may not be if you own a pH pen pass plain ph,d water through the pot collect the first 10% run off and some of last 3rd it should be around 6.4 for soil/compost if run off is good Ur root zone will be good in theory so u can tick them issues off leaving you with environment, watering and pests you can answer the watering and enviro Ur self if Ur certain none of them are the issue it leaves you with pests/fungi

This is not gospel am still learning myself but I found this process along with nute Def charts and reading to be very efficient in my personal experiences am sure one of the staff will jump in to give you some definitive answers good luck
THC

Mañ'O'Green · Jun 10, 2021

Spike739 said:
New grower and I noticed this on one of my leaves this morning. Wanna nip it in the bud before it becomes a major problem. Growing in OF using a Mars Hydro TWS 2000, started light off at manufacturers recommend hight and setting and have since moved it up to 3 feet at 100 % on the dimmer. Running fans and a humidifier to keep my VPD in the optimum range. Any help or suggestions would be much appreciated

Looks like too much nitrogen to me.

OF is too hot for autos. Just keep going with water only until they start to turn light green in color.

TheHappyClique · Jun 10, 2021

Mañ'O'Green said:
Looks like too much nitrogen to me. OF is too hot for autos. Just keep going with water only until they start to turn light green in color.

Can too much N cause rust spots then ?
Or is that a result of poor plant health due to too much N

Mañ'O'Green · Jun 10, 2021

TheHappyClique said:
Can too much N cause rust spots then ?
Or is that a result of poor plant health due to too much N

Yes. But it is usually a combination of things going on. PH is a big factor in some problems. You should be going in at 6.4 - 6.6 PH for soil. The leaf clawing is a sign of nitrogen toxicity. It is best to just give water and hope it grows out of it.

TheHappyClique · Jun 11, 2021

Mañ'O'Green said:
Yes. But it is usually a combination of things going on. PH is a big factor in some problems. You should be going in at 6.4 - 6.6 PH for soil. The leaf clawing is a sign of nitrogen toxicity. It is best to just give water and hope it grows out of it.
View attachment 1329113

Cheers for the info makes sense hope you are well

Can someone identify what going on?

Spike739

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nizmoKush

bluntts to the rescue!!!

Spike739

Ryno_nuggs

Ryno_nuggs

TheHappyClique

THE CHURCH OF THE HOLY TREE®

Mañ'O'Green

Kia ora. Retired to watch the grass grow.

TheHappyClique

THE CHURCH OF THE HOLY TREE®

Mañ'O'Green

Kia ora. Retired to watch the grass grow.

TheHappyClique

TheHappyClique

THE CHURCH OF THE HOLY TREE®

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