[Pimp Aurora]

I copied this from my post in the 'ask the old farts a question' thread
Any idea's what this is? it's only affecting this one hashberry plant (so far).



I can't see any bugs or that, I misted them with a 1/4 strength dose of copper fungicide about 9 days ago as a precautionary measure, this appeared over about the last 48 hours..

some info,
germed 01-01-07
250w mh 9" from plant tops
natures own organic potting compost and coco coir 60/40 mix
bio bizz grow and bloom 1/2 strength
seaweed extract 5ml per 2litres
rvk 100 in a 'standard' sized wardrobe
watering using tap water thats bubbled for 24 hours.

I don't have ph or cf meters but the compost should be buffering itself shouldn't it? also i'm only using half strength feed once every 3 waterings just now.

It's not crispy, but it looks like it's almost digesting itself!


Please help!

edited to add a pic of the whole plant..

[Pimp Aurora]

turns out they are digesting themselves in a sence, i'm upping their feed at lights on

[Speeding Mullet]

Pimp Aurora, it looks like what happened with my plants but you have caught them before the situation got worse like mine. Still turned out great though!

I upped the nutes slowly and everything sorted itself out. Don't overcook it though, its easy to add but alot more difficult to take away.

SM

Hi Pimp Aurora,

I reckon that's a simple case of magnesium deficiency...

1/4 teaspoon of epsom salts in a litre of water applied with a foliar spray should sort out that little problem.

Best of luck,
longshot

[Pimp Aurora]

Cheers for the input guys, to be honest I thought they were a little young to be giving a misting of epsom salts just now but I was intending giving them some in a weeks time so I gave them 1ml grow and 1.5ml bloom instead of around 0.75ml grow + 0.75ml bloom per litre of bubbled water, i'll keep a close eye on them for the next few days and if it doesn't slow down then i'll get the epsom salts out

[ItsGrowTime]

That plant definitely needs Cal-Mag! They look a bit overwatered too.

so I gave them 1ml grow and 1.5ml bloom instead

That will not sort out your Mag. def. though...

I thought they were a little young to be giving a misting of epsom salts

They're a little small for three weeks (almost definitely the mag. def.)...but not too young. In fact you can give epsom salts to very young plants, you just use a weak dose

The bio-bizz ferts are lacking magnesium so it's something you need to keep on top of.

[Pimp Aurora]

Originally Posted by ItsGrowTime

That plant definitely needs Cal-Mag! They look a bit overwatered too.

I don't think we can get cal-mag in the UK it'll just have to be epsom salts, if anything they are being under watered, the temps are a little hot and they are drying out kinda quick but there's nothing I can do to fix that at the moment, maybe the seaweed extract is making them look overwatered..

Longshot, I'll give them another 24 hours before misting with epsom salts, they might look small in the photo's but they are in 6" pots and there is a mere 5mm gaps between the nodes! side shoots are developing nicely, compared to my aurora indica they are doing fantastic

there is a mere 5mm gaps between the nodes!

Sounds like they're going to be some nice chunky plants!

Best of luck with your grow,
longshot

[ItsGrowTime]

Definitely add the epsom salts sooner rather than later. I had the same deficiency kill 3 plants before I figured out what it was.
Look familiar?


This is how the leaf will end up. And the rest of the plant too. Dead.