does this look like lsf

[zafira-sri]

hi need a bit of help with this problem does this look like lsf or is it nutrient related

white russian clones 3.5 weeks in flower under 800ws of hps growing in plagron lightmix
feed advanced nutrients iguna bloom and big bud and all the advanced nutrients additives im also using 0ppm r/o water
temp 26 lights on and 21 lights off
humity 50%-60%
soil ph 6.3 and ec 1.0

it only seems to be affecting top fan leaves




thanks
zafira

 

[zafira-sri]

thanks for all the replys

im treating as a calcium deficiency so im going to give them some sensi cal

 

[Hammerhead]

check your grow room for pest like spider mites

 

[HeadyPete]

I second the spider mites.

what's lsf?

 

[knna]

I think its a Ca deff. Spider mites spots usually dont turn brown inside. Anyway, look for them, in case of.

 

[zafira-sri]

heady pete lsf leaf spot fungus
Hammerhead
knna

thanks for the replys

i gave them some sensical and its worked

no mites anywere or any other pests for that matter

 

[HeadyPete]

Glad it wasn't mites.

 

[DIGITALHIPPY]

I think its a Ca deff. Spider mites spots usually dont turn brown inside. Anyway, look for them, in case of.

thats my suspicions too.
no mites just cal.

also whats LSF?