IS THIS PH????

[gonejah17]

My new kush mini mom has been giving me some issues, Ive seen the same thing on a sister of hers that is flowering right now. The black spot has spread since this pic. It is only on one leaf and the new growth looks good. This cutting hasnt had any nutes and is in some organic pottingg soil with perlite. The mother has no signs of this deficiency/disease

Any help would be great this is supposed to be my new mom lol

 

[MynameStitch]

Can you give some more information?

RE YOU USING?

SOIL:
What STRAIN are you growing?
What was the establishing technique? (seed or clone?)
What is the age of your plants?
How Tall are the plants?
What PHASE (seedling, vegetative or flower) are the plants in?
What Technique are you using? (SOG, SCROG etc)
What size pots are you using? (Include how many subjects to pot)
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?)
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful*
What is the TDS/EC/PPM of your nutrients used?
What is the pH of the "RUN-OFF"?
What method of pH test was administered? Using Strips? pH pen?
How often are you watering?
When was your last feeding and how often are you feeding?
What size bulb are you using?
What is the distance to the canopy?
What is your RH Factor? (Relative Humidity)
What is the canopy temperature?
What is the Day/Night Temp? (Include fluctuation range)
What is the current Air Flow? (cfm etc.)
Is the fan blowing directly at plants?
Is the grow substrate constantly wet or moist?
Is your water HARD or SOFT?
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
Has plant been recently pruned, cloned or pinched?
Have any pest chemicals been used? If so what and when?
Are plant's infected with pest's?

 

[stinkyattic]

That looks fungal to me. Document it with pics, remove the affected fan leaves, and get them out of your grow area immediately.
I would start treating with Serenade right away while you figure out where the problem came from.

 

[DIGITALHIPPY]

That looks fungal to me. Document it with pics, remove the affected fan leaves, and get them out of your grow area immediately.
I would start treating with Serenade right away while you figure out where the problem came from.

safer 3-in-1 works well on blackspot fungi too.

 

[MynameStitch]

Ime, that does not look like a fungal problem to me.... looks more like something happened to the plant.... like by something spilling or sitting on the leaves or something else.

 

[gonejah17]

Sorry, heres the answers to the Qs

SOIL: ROOTZ organic (gifted to me from hydro store to test)
What STRAIN are you growing? Master Kush (not sure the bank)
What was the establishing technique? (seed or clone?) Clone, store bought
What is the age of your plants? the clone is a few weeks old, but the mother is maybe 7 months old
How Tall are the plants? the clone in question is 7 inches tall
What PHASE (seedling, vegetative or flower) are the plants in? veg
What Technique are you using? (SOG, SCROG etc) none
What size pots are you using? (Include how many subjects to pot) small pot lol not sure the size exactly
What substrate/medium are you using? What brand of soil mixture are you using?(percentage of perlite, vermiculite...etc?) 30% perlite
What Nutrient's are you using?How much of each with how much water? How Often? *Knowing the brand is very helpful* no nutes yet
What is the TDS/EC/PPM of your nutrients used? N/A
What is the pH of the "RUN-OFF"? 6.5 (need to check this watering)
What method of pH test was administered? Using Strips? pH pen? truncheon
How often are you watering? going by moisture meter/feel of pot
When was your last feeding and how often are you feeding?N/A
What size bulb are you using? small flouro
What is the distance to the canopy?8 inches
What is your RH Factor? (Relative Humidity)not checked but I dont think thats the issue
What is the canopy temperature? good (not checked but again I dont think this is the issue)
What is the Day/Night Temp? (Include fluctuation range) not the issue Im sure
What is the current Air Flow? (cfm etc.) not TOO much air flow, two pc fans
Is the fan blowing directly at plants? no
Is the grow substrate constantly wet or moist? no
Is your water HARD or SOFT? R/O
What water are you using? Reverse Osmosis (RO)? Tap? Bottled? Well water? Distilled? Mineral Water?
Has plant been recently pruned, cloned or pinched? no
Have any pest chemicals been used? If so what and when? no
Are plant's infected with pest's? no

It's not from anything sitting on it, it started as a brown spot and has spread. AS I said its on its sister as well. I will remove the leaf and take pics of the plant from now on.

Might it possibly be from not cleaning scissors when taking cuts from the mother?? I must admit I dont ALWAYS use iso when using scissors.

Thanks guys Ill post pics tonight or tomorrow of the removed leaf. Please help this strain is BOMB!!!!

 

[HeadyPete]

Could be from ph being out at one point. Once that damage happens it won't repair. Definitely not a fungus. Fungus grows in moist, stagnant conditions.

They need food as well. A few weeks without any nutes is too long.

 

[gonejah17]

Could be from ph being out at one point. Once that damage happens it won't repair. Definitely not a fungus. Fungus grows in moist, stagnant conditions.

They need food as well. A few weeks without any nutes is too long.

Theres nutes in the organic soil, no??

 

[gonejah17]

Here she is

Here she is

Well I took off the leaf and I have pics of it and of the plant as it stands now. Shes looking good now, no more signs of that issue. Im hoping its just ph.

Heres the MOM



And the Leaf from earlier post






Heres a shot of kindof the same thing going on on a sister of hers (black spot). This plant is budding and this shot is kind of bad, just a crop of an earlier shot sorry



And then check it out, here it is on another strain all together, just starting. I will chronicle this leaf, taking pics to show the progression and then take it off when it gets bad.



Here you can see it makes the leaf curl up too.



K sorry for the pic flood but its good data, any help is greatly appreciated. I had all these ladies cramped up in a mom cab. Ill try to think of more info to offer. Let me know if u think it might be a disease. Thnx guys!!

 

[MynameStitch]

Soil does have nutrients, but the plants will eat it up and thus feeding has to be done in order to keep them healthy, I agree with petey though, I do not see a fungus problem at all.......


What soil brand are you using?
Those spotting is either caused by hot spots when it occurs like that, pH is also a big cause of the problem you are seeing, it can be caused by the soil being too alkaline.

Acidic it seems to do more with spotting.

You are also using RO water and no nutrients, by now the plant is lacking something, RO water has no micros in it, which you need something to supplement everytime you water your plant.

I bet this problem has to do with RO water and pH issues.

 

[igrohydro]

Gonejah17,ur plant looks quite healty.
Id agree with the p.h being off at one point,looks like a slight burn also combined with a defiecency which was most probibly caused by the ph being off.Hope this helps,goodluck.
You wont be able to repair the damage only try to prevent it.

 

[gonejah17]

You guys R the shit!!! Thanks so much!!

When I grew my VERY first seedlings I burnt them by overwatering in FFOF when they were still young. So I guess my understanding was while plants were young and first put into organic soil (ROOTZ ORGANIC is the brand Im using, freebie from store) they dont need nutes for about the first month. Because there are nutes in the soil still. I applied this reasoning to young clones, but apparently no??

I also learned the ph thing the hard way lol, and now I really check the ph every time I water, but I just dont know FOR SURE if I checked the runoff of this lady the last time I watered her. I DEFINTELY will this next time. And Im hoping the issue is PH. And lack of nutes like u said.

Ill give her a small dose of MG All purpose w some LK and some CM, she should like that yeah???

Thanks again guys Ill keep updating this issue. Im loving IC more and more!!!

 

[Hydropimp]

So when watering what should be the p.h range for soil haven't been able to do anything for 3yrs and am back with avengence.

 

[HeadyPete]

Gonejah, putting the seedling into FFOF was the problem, as well as the overwatering. Too strong for delicate young plants. Seedlings and new clones (no roots) must be in soil with no nutes in it and they can go 2 weeks max, not 4 weeks. Nutes in the soil will burn these young plants because they can't use it all fast enough. I start feeding mild organic nutes (BioBizz Gro) after 1 week because organics must take time and break down before the plant can use it.

I would ditch the MG altogether. It is very strong and what you may think is mild may kill your plant. Also, the sources of MG are questionable and I would not use it on anything I planned on consuming.

The other issue is your fluoros. What exactly are you using for light? Wattage? Tubes? Size? Quantity? The weaker the light source, the less nutes the plant can use. Light is the energy that turns the "plant's engine" or metabolism and dictates how much water and nutes, growth rate the plant has/uses. The same plant under T5 or MH would be bigger now and feeding more. You must adjust to your conditions. Go easy....too little food is better than too much.

Now ph is just as important. Measure the runoff. You want to shoot for about 6.3. The range is 5.8 - 6.8. Try to stay in the middle. As the plants use nutrients, ph will rise. As the plant becomes more rootbound, ph will rise (you can trim rootballs like you prune the top of the plant) As natural microbial action occurs, ph will drop. Most organic ferts are acidic, especially fish based or guano based ferts. Floralicious Plus is really acidic.

If your runoff ph is high, you must lower your fert water the other way to balance at 6.3. If you feed 6.5 and runoff is 6.8, next time adjust to 6 to bring down soil ph to 6.3. This happens gradually over time and you won't have to adjust as much once the soil is close to ideal. Dolomite lime will raise ph and keep it stable, but keep in mind it is very slow to act and will not affect your soil if freshly added. It needs to cook in soil for awhile (some say up to a year). I don't use lime in my coco....extra material cost and I don't need it. Coco is closer to ideal ph than peat based mixes, and lime or oyster shell is added to those acidic peat mixes to raise them closer to ideal.

I have seen that exact leaf necrosis in my plants and believe it is from high ph. My moms were root bound and the ph was 6.8 - 7.0 and I couldn't practically get it down to ideal until I either transplanted or trimmed roots (I trim roots). A few of my leaves did what your's are doing, so I'd bet your ph is high. Use a digi pen for accuracy...it matters.

Like Stitch said, too acidic runoff will show calcium def spotting usually first.

Hi Stitch!

 

[gonejah17]

Damn Heady Pete thanks for stopping in and dropping ur .02, VERY appreciated, thats some great info. Lemme address a few things, not questionin u AT ALL just explaining my experience/op more;

I was using FFgrowbig for a veg nute but GanjaGuerilla recommended I switch to MG All Purpose Water Soluble Plant Food. He even started a thread about it, having once sworn against all MG products he was blown away with "MGAPWSPF" as a veg nute. I guess it has all the micronutes in it and a very high N content. He recommends 2 tspn every other watering so I was doing 1 every watering. The plants seem to like it but might be more lush green then is desired. (Always thought you wanted dark green leaves but Im learning this might not be the case) I JUST recently read Mandala Mikes guide to fertilizing and I was going to cut back to like .6 ec from now on to see how it did. So as u can see Im still toying with nutes, not sure whats best obviously since this is my first grow lol. Do u still think I shouldnt use MG?? I will switch and try something new if so. Maybe Biobizz or PBP??

The flouro I got free and Im not sure the exact wattage, I can look but dont know right off hand. I have a T5 as well but it doesnt fit in the mom cab. Im trying to keep my moms small and keep them in this little cab with this little flouro. They were pretty crowded but I just took large ones out to put under the T5 to get ready to flower. Heres a pic of the cab right now for reference

There were two more large pots like the one thats in there now that were just removed.

As far as PH, Im aware of the 6.5 thing, and I think I just got lazy lol. I always check the brew I give my ladies, but dont ALWAYS check runoff. I check it if theres an issue and adjust accordingly. I just have to wait till this little one needs watering again. Just went thru a big ph flush on my flowering ladies too. I was neglectful of my girls for a few moths when I had this crazy gig and Im paying for it now lol.

Its funny my boy is starting a little grow (CranberryxG13??? WTF???) and hes using FF and hes overwatering right now lol, told him over the phone that was the problem without even seeing them cuz he said it looked like nute burn and they're seedlings. First thing I asked him was how often he was watering. Dude said every day lol. So I feel u on the FF I went thru the same exact thing.

Thanks so much for all the info again!!! Im glad uve seen this on ur ladies and its not some crazy unkown phenomenon. I appreciate all the help IC stay tuned Im going to start a thread here on my other sick plant lol.

 

[HeadyPete]

My pleasure, glad to be of help.

The fluoros are fine for moms, the point I was trying to put across is that as a weaker light source, you need to dial down the ferts accordingly. Your girls look great, btw.

I would use the FF if you have it over the MG, but I use and really like BioBizz, so I'm going to suggest that one. I use Grow, Bloom, Topmax, and the dry fert PreMix in my cocosoil. I also use Floralicious Plus, for sweet sugary flavour and enhanced growth. MG is not really made for food type crops, so I don't want to ingest it. Also, it is way potent, that's why it works so fast and well, and it's oh so easy to fry your plants. BioBizz or FF are of higher quality and cannabis specific.

I only give my moms Grow almost every watering, plus CalMax every 10 days or so.

BioBizz has a feeding schedule to use as a guideline, but the bloom sched is too hot for me under 600 hps, I sizzled the last two rounds a little. Need to back it off a bit.