[worzel]

Good morning all.

Could you please help me determine if I need to take any actions with the following ailments?

Background is that a mate is growing this SSH (with another SSH and 8 small Durban Poisons) in these conditions:

Large walk-in-wardrobe/room type space
1 extraction fan
1 circulatory fan
1 thermo controlled oil radiator
1 250-400 dimmable digi-ballast
Used 250w CFL then recently swapped to 250w (+SL) HPS
Plant Magic Supreme compost + OT Grow / Catalyst / Silicone
SM3 (mixed up and sprayed) was used about a week ago with no noticeable problems
Temps and humidity are reasonable although there could have been some lights off temps of <18, but the radiator was tweaked accordingly.

OK, so the Mr Nice SSH was very recently pinched out (lateral tip at about node 6/7) and was looking really healthy, but a day later this happened:







I think the possibilities are that the swapping of the light (with extra wattage from SL switch) may have caused burning as this seemed to be the highest leaves only; or could this be caused by watering a little haphazardly (over the leaves) with a rubbish watering can/rose; or this could be lock-out due to low temps? I'm hoping it's not fungus-based.

I'll leave this for the experts; I'm sure it's a pretty easy diagnosis but I want to know whether to act now or await further developments.

Many thanks
W

[LooseLips]

Not too sure mate, but the first pic looks like burns from having wet leaves. Could also be wind burn looking at the second pic. Hope ya get it sorted mate.

[worzel]

LooseLips, on 14 April 2012 - 11:37 AM, said:

Not too sure mate, but the first pic looks like burns from having wet leaves. Could also be wind burn looking at the second pic. Hope ya get it sorted mate.

Thanks - I forgot to mention that the curled leaf, and some other leaf-parts are crispy too.

[Stoned Whale]

worzel, on 14 April 2012 - 11:41 AM, said:

LooseLips, on 14 April 2012 - 11:37 AM, said:

Not too sure mate, but the first pic looks like burns from having wet leaves. Could also be wind burn looking at the second pic. Hope ya get it sorted mate.

Thanks - I forgot to mention that the curled leaf, and some other leaf-parts are crispy too.

No solutions for you mate but sorry to budge in. What do these symptoms usually mean? Also have some small plants with some curled or almost wrinkled up at random areas of leaves. Bit crispy looking. Imagining heat issues.