WHATS WRONG?!

Ok so I've ran into my first snag. I got home from work an hour ago (graveyards ugh) and I checked the girls out and my tallest plant seems to have a couple discoloured leaves. Kinda yellowish but not so much? It's just a couple leaves and it doesn't look too bad, there's also a couple small yellow leaves on one of the other girls on the bottom...I just want to have an idea of what to do before it gets any worse. These are autoflower feminists from crop king, they will be 5 weeks old this coming Monday, I just started feeding general hydroponics flora trio at beginning of week 4, using 1/4 amounts,I feed them like every 3 days or so when the soil starts to feel quite dry, so I fed them on Monday and Thursday with nutes and they reacted very nicely like I could see quite a bit more growth and when I was looking at them yesterday they were looking great but I was going to water them cause they looked like they needed it and i just didn't cause I've been doing it every 3 days, now that they're getting bigger faster should I be feedingmore?? My pH has been at a steady 6.5, should I lower it? Anyways I know I'm ranting here just trying to describe my situation as best as I can, this is my first grow so I'm concerned obviously haha. Any advice will be much appreciated!

Your fine......starter leaves yellow and should be removed sometime during early bloom....Do not start the higher P bloom foods till week 3 and then 1/2 and 1/2 with veg. Full on bloom at week 4. (after the light flip)

What's the soil you used?

Also, I would use 50% nutrient and adjust as needed.....

Those bigger fans that are discoloring, say low Ca.....The rest of the plant doesn't but, adding a Ca/Mg product won't hurt as many pre-made soils need more anyway!

Yup looks like calcium.

Dr. Who said:

Your fine......starter leaves yellow and should be removed sometime during early bloom....Do not start the higher P bloom foods till week 3 and then 1/2 and 1/2 with veg. Full on bloom at week 4. (after the light flip)

What's the soil you used?

Also, I would use 50% nutrient and adjust as needed.....

Those bigger fans that are discoloring, say low Ca.....The rest of the plant doesn't but, adding a Ca/Mg product won't hurt as many pre-made soils need more anyway!

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I thought you're not supposed to remove leaves on autoflowers?? If I do remove it do I just cut it at the start of the leaf or what?

I'm using a 100% organic Canadian soil I forget the name of it, mixed with perlite and vermiculite and sphagnum peat moss. I don't have any cal/mag currently, what's the next best thing you figure?

Could also be potassium. Plants deficient in K will be the tallest/stretchiest. Last summer I left one of my tomatoes in a 5gal bucket because I ran out of room in the garden. After it had set some decent fruit it started to become very stretchy, increasingly as the fruit continued to develop and new fruit appeared.

This happened because seed production requires high amounts of K, and I wasn't applying much fertilizer as I had like 10 plants in the ground producing lots of fruit.

I'm not saying you don't have a calcium issue, the leafs do in fact look quite a bit like cal or too low ph (ph can drop quick when you feed too much ammonium nitrate, which typically accounts for the majority of the nitrogen in fertilizers). I'm simply saying don't rule out any symptom even if it seems desirable on the surface.

I do believe it's nitrogen toxicity! When I got home this morning I seen some definite clawing and the leaves that had spots are definitely yellow/brown now. I burned her just hoping she recovers fast

if not calcium, what are your mite control methods? could be scratches on the skin

iHearAll said:

if not calcium, what are your mite control methods? could be scratches on the skin

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Definitely not mites

I do appreciate the responses though gentleman; it means a lot.

GreenWolverine said:

I do believe it's nitrogen toxicity! When I got home this morning I seen some definite clawing and the leaves that had spots are definitely yellow/brown now. I burned her just hoping she recovers fast

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Did you happen to increase feeding after you noticed the symptoms? If so that may be causing N toxicity on top of the other issue.

Remember, ammonical nitrogen drops ph, and can also cause N toxicity.

dtl420 said:

Did you happen to increase feeding after you noticed the symptoms? If so that may be causing N toxicity on top of the other issue.

Remember, ammonical nitrogen drops ph, and can also cause N toxicity.

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I did feed yesterday but not increased. I wish I would have had just flushed but I didn't have any water ready to go! Ugh.

GreenWolverine said:

I thought you're not supposed to remove leaves on autoflowers?? If I do remove it do I just cut it at the start of the leaf or what?

I'm using a 100% organic Canadian soil I forget the name of it, mixed with perlite and vermiculite and sphagnum peat moss. I don't have any cal/mag currently, what's the next best thing you figure?

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Their not yellow and dead yet. So don't remove them....

And if it's getting worse by the way you describe - pH is starting do a lock out......

What do you pH your in-going to? And Cal is a problem as it's the first thing locked out and the plant shows it!

For sure is NOT mites or bugs..

Dr. Who said:

Their not yellow and dead yet. So don't remove them....

And if it's getting worse by the way you describe - pH is starting do a lock out......

What do you pH your in-going to? And Cal is a problem as it's the first thing locked out and the plant shows it!

For sure is NOT mites or bugs..

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There's a couple small leaves on the bottom that are basically all yellow, I can remove those hey?

I've kept my pH right around 6.5... what could you recommend I use to give it some calcium without proper nutrients? I already ordered some cal/mag but it won't be here until Friday...the joys of living in the North Pole lol.

GreenWolverine said:

There's a couple small leaves on the bottom that are basically all yellow, I can remove those hey?

I've kept my pH right around 6.5... what could you recommend I use to give it some calcium without proper nutrients? I already ordered some cal/mag but it won't be here until Friday...the joys of living in the North Pole lol.

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If you're using tap water, you probably dont NEEEEED calcium supplements. If the tds of your tap water reads 150ppm you'll be fine without. You can supplement the magnesium with Epsom salt from Walmart pharmacy. It contains magnesium sulfate, a very popular ingredient in commercial fertilizers.

But in all reality, you're medium is probably not deficient in calcium. If it's lockout then treating the ph issue will fix the problem.

Hit it with some ph adjusted water and test the ph of the runoff water from the container. This WON'T give you an exact measurement, just tells you if the ph is higher or lower than you want it to be. If it's more than a few tenths lower than 6.5, supposing its watered with 6.5 ph, then you've found the cause of you issue.

What kind of soil are you in? And is it amended with anything?