Help with identifying issue. Does anyone have any suggestions?

Dipped Beef · May 31, 2020

Hey everyone!

This is my first time grow and I can't seem to identify what the issue is. The leaves started out with brown spots on the fan blades then it's progressed further to what these photos show. Should I cut the affected leaves off? Any help is greatly appreciated!
-Strain: Jack Herer Autoflower
-Soil: Fox Farm Ocean Forest.
-Nutrients: Fox Farm Trio (just using Big Bloom currently) and Cal/Mag. I'm doing 2 tablespoons of big bloom and 2 tablespoon of cal/mag.
-pH: 6.2
-Water: purified
-Light Spider Farms SF2000
-Temp:72-85
-Humidity:46-65%

hotrodharley · May 31, 2020

Nitrogen toxicity apparent.

Doug Dawson · May 31, 2020

My experience is limited but it looks like over feeding/ over watering issues as well. I am sure many other more experienced growers will chime in. These carts can be helpful.

Dipped Beef · May 31, 2020

hotrodharley said:
Nitrogen toxicity apparent.

too much Nitrogen? Should I just use pH water and then only cal/mag or just pH water?

hotrodharley · May 31, 2020

Dipped Beef said:
too much Nitrogen?

Yes

Dipped Beef · May 31, 2020

Doug Dawson said:
My experience is limited but it looks like over feeding/ over watering issues as well. I am sure many other more experienced growers will chime in. These carts can be helpful.

I will definitely use these!

Dipped Beef · May 31, 2020

hotrodharley said:
Yes

Should I just use pH water for next couple of feedings or would you suggest adding Cal/Mag to it as well?

Dipped Beef · May 31, 2020

This is what it first started to look like before adding any nutrients.

Dipped Beef · May 31, 2020

hotrodharley said:
Yes

Would you suggest cutting the affect leaves? I just read Cal/Mag has Nitrogen in it so I'll just use pH water for now.

Budzbuddha · May 31, 2020

Well .....

First your PH is too low ..... FFOF out of the bag is 6.3. therefore you should be at 6.5 to allow for drift.
This is why some element deficiencies are showing. FFOF can grow an auto on nothing but water.
Autos need only about 90 days of happy stress free growing ( average ) , FFOF can feed an auto for 6 weeks all by itself.
Big bloom has micronutrients and is the only organic of the trio set.

Shockingly , all you need to do is scoop some fresh FFOF and top dress your container / water in at 6.5 .
Add about 1 tsp of calmag per gallon to water . Leaves will not recover , you are just putting brakes on issue.
If auto becomes further stressed , it will stunt , slow or grow pathetically. Autos are plant and play , nothing else.

Surprising how many struggle with this simple peat based mix. It runs a bit hot initially but plant works thru it and acclimates.
Correct the PH and recharge medium as mentioned. Simple.

Dipped Beef · May 31, 2020

Budzbuddha said:
Well .....

First your PH is too low ..... FFOF out of the bag is 6.3. therefore you should be at 6.5 to allow for drift.
This is why some element deficiencies are showing. FFOF can grow an auto on nothing but water.
Autos need only about 90 days of happy stress free growing ( average ) , FFOF can feed an auto for 6 weeks all by itself.
Big bloom has micronutrients and is the only organic of the trio set.

Shockingly , all you need to do is scoop some fresh FFOF and top dress your container / water in at 6.5 .
Add about 1 tsp of calmag per gallon to water . Leaves will not recover , you are just putting brakes on issue.
If auto becomes further stressed , it will stunt , slow or grow pathetically. Autos are plant and play , nothing else.

Surprising how many struggle with this simple peat based mix. It runs a bit hot initially but plant works thru it and acclimates.
Correct the PH and recharge medium as mentioned. Simple.

Thank you so much for this insight! I really appreciate the feedback on this and I'll make sure to follow your instructions. Would you suggest cutting the affected leaves or just let them die off on their own? If the plants are showing too much Nitrogen, would adding Cal/Mag make that worse?

Budzbuddha · May 31, 2020

Looks more like potassium def . ( yellow edges / tip burn )

often mimics nitro issue.

Dipped Beef · May 31, 2020

Budzbuddha said:
Looks more like potassium def . ( yellow edges / tip burn )

often mimics nitro issue.

Thank you so much! I'll make sure to follow your instructions. I also have
Super Soil Autoflower Concentrate
Should I implement that at any point?

Budzbuddha · May 31, 2020

Not sure what that is.

Budzbuddha · May 31, 2020

I would up pot it too.

Dipped Beef · May 31, 2020

Budzbuddha said:
Not sure what that is.

Amazon.com : Super Soil Autoflower Concentrate : Garden & Outdoor

www.amazon.com

Would it be good to incorporate that as a top dress when they start flowering?

Dipped Beef · May 31, 2020

Budzbuddha said:
I would up pot it too.

On all of them or just the one in the cup? two are in 7 gallon pots and one is in a 5 gallon pot.

Budzbuddha · May 31, 2020

Dipped Beef said:
On all of them or just the one in the cup? two are in 7 gallon pots and one is in a 5 gallon pot.

Nvrmind ... I saw the last photo you posted.

Budzbuddha · May 31, 2020

Dipped Beef said:
Amazon.com : Super Soil Autoflower Concentrate : Garden & Outdoor

Amazon.com : Super Soil Autoflower Concentrate : Garden & Outdoor

www.amazon.com

Would it be good to incorporate that as a top dress when they start flowering?

yikes ... $40 for same possible amendments that host soil probably has ....... idk if that will be necessary ... your call.
I tend to keep shit simple.

Help with identifying issue. Does anyone have any suggestions?

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