Yellow leaves and brown marks at bottom with pics

[Wondering Star]

This plant has been grown 12/12 from seed since 1 month and 5 days ago. It showed female hairs about 2 to 3 weeks ago.

Yellow leaves are now at the bottom and seemed to be moving up through the plant. I gave it some formulex for nitrogen yesterday, though it is vegging nute - incase it was a nitrogen deficiency.

Do you think it may be nute-deficiency? i.e. not enough food? Cos of the brown marks.

The problem doesnt seem to have got any worse since i gave the nitro, but it's a bit early to tell.

Anyone else got a take on this?

 

[jawbrodt]

It's running low on nitrogen, and would benefit from a dose of veg fert, rather than bloom fert. It's normal for that to happen towards the end of bloom, but, it's still a bit early. Honestly, they don't look too bad, IMO, and should finish nicely.

 

[bobbyhopefeild]

the first pic looks like it could be leaf fungus, a bit of downey mildew, but not sure as sometimes you can just get leaf irregularities, and check for spider mites too. The other two pale leaves could be something as simple as nitrogen , did the leaves gradually drain of colour and then turn pale yellow?

 

[stanislavski]

DAMN BREAK OUT THE NITROGEN ON THAT SOB haha...no worries, though...It's just a fan leaf & jawbrodt said it as good as anyone.

Just because you're in flowering, doesn't mean the plant doesn't need Nitrogen. You are the only source the INDOOR plant has for N. There are flowering nutes just as there are vegging nutes.

Good luck!

** And if they start to die and fall off, get them out of the soil so you don't kill the rest of your plant.

 

[stanislavski]

didn't even click on the first pic....yeah mate, you've got some mites or nute burn. Give it 1/2 of what it calls for every other feeding for a week, then graduate up. See how that works out for ya. You'll see remarkable change over 1/2/3 nights.

Good luck!

 

[Wondering Star]

Thanks for everyones replies! The N deficiency seems most liekly. Yes it is a bit early for it though.

It's running low on nitrogen, and would benefit from a dose of veg fert, rather than bloom fert. It's normal for that to happen towards the end of bloom, but, it's still a bit early. Honestly, they don't look too bad, IMO, and should finish nicely.

I gave it some veg ferts 2 nights ago and I have not seen any further yellowing.

I cut the bloom nutes dosage about a week ago, because I started using an EC meter. So now it has EC and PH regulated feeding.

Is there any chance it isnt getting enough bloom nutes, which is why I am seeing slight burns spots on leaves? Is the plant eating itself? lol i hear this can happen, sorry if it sounds stupid.

 

[Wondering Star]

didn't even click on the first pic....yeah mate, you've got some mites or nute burn. Give it 1/2 of what it calls for every other feeding for a week, then graduate up. See how that works out for ya. You'll see remarkable change over 1/2/3 nights.

Good luck!

When lights come on i will check properly for mites but I am quite positive it is not that sort of problem. Still one can never be sure.

 

[Wondering Star]

didn't even click on the first pic....yeah mate, you've got some mites or nute burn. Give it 1/2 of what it calls for every other feeding for a week, then graduate up. See how that works out for ya. You'll see remarkable change over 1/2/3 nights.

Good luck!

Without an EC meter I was giving 7ml Ionic Bloom per litre, as it says on the bottle. But it also says the EC should be 1.5 for Passive Hydro systems. I checked the Ec and it was 2.5ms. So I have brought it down to 1.5ms, I have taken into account my tap water EC which is 0.6ms.

So basically, I already cut the nutes by about half a few days ago, maybe it isnt getting enough or was getting too much before... lol, who knows.

 

[NoName4tday]

If your in the flowering stage, i wouldnt worry to much about it. Its Normal for bottom leaves to turn yellow and died off in flowering. If your really worried about it, i would give it just a bit of Nitrogen to fix up the problem.

 

[Wondering Star]

Cheers all! Gave some more Veg ferts mixed with bloom ferts, havent seen any increase in yellowing. Should be ok till the finish now hope hope hope!