Hey

Thankfully its been a while since i have posted on here, but, im back!! *Booo!*

Anyhoo, can someone take a look at these, Im not sure if this is defo LSF, or could it be an effect of lack of flushing? I didnt flush for 5-6 weeks (I know) and am thinking that could of caused it. I have flushed for 3-4 days, then fed for 2 and its now flushing again for 48hrs before going back to normal (with weekly flush!).

So, any comments appreciated.. Also, if it is LSF, as its 6 weeks into flower, can I do anything now? Im guessing I dont want to be sprayign Hydro Gold around the place this late really?

Its starts like this, the leaf goes very dark, then these spots appear...

Click to view attachment

Then, after a week or so it yellows, the spots spread and it, well, dies from what I can see..

Click to view attachment

I will defeat it one day!!!!

MrX

why are you flushing? you growing hydro? they look burnt to me

Yeah, growing Hydro. You think its just nute burn? I guess this could be from a salt build up, as Im not overfeeding

Yeah looks burnt , needs flushed , ,,,,, but i don’t think it will be long before a fungal fan comes along to confirm LSF ,

That looks like classic tip burn.
The serrated edges of the leaf are burnt all along the line.

Cheers, will keep it on a flush then, till it tells me its hungry I guess..

MrX

Anyone got any more comments on this? I really dont think its nute burn, is killing off my leaves fast, they look horrible by the time they die. Brown/Yellow, dry, spotty, rough and brittle....

I will post some pics when I get in for the update later, but in the mean time...

MrX

Am sure if you wait long enough some one WILL confirm LSF , But then what ? When you get confirmation? (Them are having a nutrient issue from the looks of them , not LSF) . A lot of nutrient deficiencies (according to other sources, as found in the link) are easily confused with LSF http://www.drugs-forum.co.uk/growfaq/1382.htm

overfeeding and LSF i think mate.....
but don't quote me...

tbh my first comment was off the cuff, and really to tell much more info is needed, and more pics and some better quality if possible, in the first pic the random spotting looks like it could be disease, the second pic looks like burning, but this could be down to heat/humidity/general environment, feeds, ph of feeds, deficiency.... etc etc. basically you need to post as much info as possible, and hopefully someone with a lot of experience growing hydro will come and help. in the mean time you could try and get hold of webby and get some essence stuff to spray them with, even if it's not lsf it wont do any harm, and you'll have it in your armoury for the future, and if it does clear up from that before you get a good answer on here then you'll know the answer!

but first thing get all the info and pics you can up on here, i.e. what feeds, you've been giving them, e.c. ph feeding times, air temp, air humidity, ventilation etc etc, just looking at a couple of blurry pics you can't really make a proper judgement, even if they were perfectly clear, without all the info then it's still nigh on impossible to get it right. one clue, if they're defo not being overfed nitrogen is that the leaves are going dark green, as this along with the margins dying is a sign of phosphorous deficiency, so are you using any kind of boosters? what bloom feeds are you using? things like that, how did the problem start and progress? not growing hydro, i don't really know how important a weekly flush is? as i don't know how long it takes for salts to build up or if they'd be flushed away easily or whatever, so dunno if that's what caused it, maybe ask around in the hydro forum for someone to come take a look.

good luck anyway