Bronze spots and fan leaf dying

[low_and_slow]

I'd defoliate

You would defoliate an overfertilized autoflower suffering from too-high pH and light stress?

I wouldn't.

I'd lower pH to the correct range for cannabis and cut the nutes down to 25% of current strength.

Nitrogen toxicity locks out Ca and P, as does excessively high pH.

Lemon juice is not pH down, it's a very ineffective buffer.

You want to use a proper pH adjustment fluid, and target 5.5-5.9.

BioBizz is just flat out wrong about aiming for the mid 6's and for the life of me I cannot figure out why they keep making that recommendation to their customers.

 

[Myskellos]

You would defoliate an overfertilized autoflower suffering from too-high pH and light stress?

I wouldn't.

I'd lower pH to the correct range for cannabis and cut the nutes down to 25% of current strength.

How is that the pH is too high? I supposed that between 6 and 7 the pH is fine.
So, your diagnosis is overfert? How can I test this? Measuring the TDS of the runoff?

 

[low_and_slow]

How is that the pH is too high? I supposed that between 6 and 7 the pH is fine.
So, your diagnosis is overfert? How can I test this? Measuring the TDS of the runoff?

Yeah, but just look at those dark dark green clawing leaves, that's a clear sign of distress due to nitrogen.

I get that BioBizz is a fermented beet product, but anything above 6.5 is going to lock out critical nutrition for any grow style.

Runoff ppm won't really be much of a help, I'd just focus on pH and go crazy easy on the fertilizer

 

[Myskellos]

Yeah, but just look at those dark dark green clawing leaves, that's a clear sign of distress due to nitrogen.

I get that BioBizz is a fermented beet product, but anything above 6.5 is going to lock out critical nutrition for any grow style.

Runoff ppm won't really be much of a help, I'd just focus on pH and go crazy easy on the fertilizer

Got it. What should be my next steps? Check the soil runoff pH using distilled water and then correct it properly or a flush? I'm worried that a flush would overwater it, since I fed it yesterday. However thanks!

 

[Bill.de.Cat]

You would defoliate an overfertilized autoflower suffering from too-high pH and light stress?

I wouldn't.

I'd lower pH to the correct range for cannabis and cut the nutes down to 25% of current strength.

Nitrogen toxicity locks out Ca and P, as does excessively high pH.

Lemon juice is not pH down, it's a very ineffective buffer.

You want to use a proper pH adjustment fluid, and target 5.5-5.9.

BioBizz is just flat out wrong about aiming for the mid 6's and for the life of me I cannot figure out why they keep making that recommendation to their customers.

Thought only prime time news shows miss quoted and cut off sentences. You forgot the rest of it which was the worst of the lower fan leaves... looking at the pics that would be around 4 to 6/7 leaves that are struggling to repair themselves taking more energy that could be used higher up...understanding that we each have are own way of doing things please at least use the full sentence if you want to make your point..

 

[Fermented_Fruitz]

Hey @Mañ'O'Green i know u are quite knowledgeable with deficiencies (compared to my dumb ass just guessing with my own )
Any pointers on what this is??? All I know is 6.5ph is dead on for sweet spot for nutrient availability and also there is def no N tox! Them leaves would be some dark green claws if that was the case!

Also @Myskellos did u actually ever fill out that infirmary form u were sent? That helps the more experienced peeps better be able to help ufigure it out? I am super blazed and too lazy to fully read this so skimmed some of it so not sure if I missed anything! Never used the biobizz stuff but organic bottled nutes no it’s pretty much available by time it hits the roots! Should show on bottle what the percentages are and for each will show what’s not available if any! Dry organic amendments some isn’t water soluble so takes time to be available to plant but in a liquid nutrient I don’t see how many ingredients could be used that aren’t soluble but I’m no stoner scientist!
Also if u want an accurate soil ph reading dig up couple tablespoons and do a slurry test! Way more accurate then trying to use runoff!

 

[low_and_slow]

Thought only prime time news shows miss quoted and cut off sentences. You forgot the rest of it which was the worst of the lower fan leaves... looking at the pics that would be around 4 to 6/7 leaves that are struggling to repair themselves taking more energy that could be used higher up...understanding that we each have are own way of doing things please at least use the full sentence if you want to make your point..

Can you explain to me how defoliation improves plant health? How would removing older leaves improve the health here?

Are you under the impression that removing lower fan leaves has some impact on nutrient transport to upper growth sites?

You're instructing a novice grower to remove water, minerals, and chloroplasts from the plant because the tips got a bit crisp? On what basis? Those leaves are providing a buffer for the plant because something is obviously amiss in the root-zone, removing them just narrows that margin and puts the plant in a more precarious position.

I'm not arguing against select pruning and shaping of a plant, but when your plant is sick the LAST THING ON EARTH you should do is rip off leaves (unless they show visible pathogens, but in this case that's not the issue).

 

[Fermented_Fruitz]

Ya I’ll def agree there if u have leafs dying from nutrients being pulled outta them NEVER CUT THEM O TIL U FIX THE DEFICIENCY 1st!!! All u will do is cause the plant to start taking those nutes from diff leafs so will make it spread! Just leave them be cuz u can track if it’s getting worse by if it indeed starts moving on to new leafs being affected!

 

[Mañ'O'Green]

@Myskellos You have several things going on simultaneously here. Get your environment in order 68°F night 78°F Day wit RH >40%<60%

Your starting water is too high PPM @336 which means you are getting too much Calcium every time you feed or water. You need to mix 2 gallons of Distilled or RO water with 1 gallon of tap to get this down to 100PPM. do not add Cal-Mag.

You have too much fertilizer in the pot and judging by the dark green color of the leaves too much nitrogen.

So you are locking out K, C with nitrogen and B, Mg and P with calcium.

Get that starting water fixed, then fertigate with 30% strength balanced nutrients to 30% run-off for the next 4 fertigations then increase the strength to 50% with 20% run-f until the plant looks healthy again and perhaps to harvest.

 

[Myskellos]

Also @Myskellos did u actually ever fill out that infirmary form u were sent? That helps the more experienced peeps better be able to help ufigure it out? I am super blazed and too lazy to fully read this so skimmed some of it so not sure if I missed anything! Never used the biobizz stuff but organic bottled nutes no it’s pretty much available by time it hits the roots! Should show on bottle what the percentages are and for each will show what’s not available if any! Dry organic amendments some isn’t water soluble so takes time to be available to plant but in a liquid nutrient I don’t see how many ingredients could be used that aren’t soluble but I’m no stoner scientist!
Also if u want an accurate soil ph reading dig up couple tablespoons and do a slurry test! Way more accurate then trying to use runoff!

Yes I did fill the form, it's the third post of this thread. I also did the slurry test and the PH is fine. So... Wtf is going on?? Thanks man, appreciate!!