Looks like a Phosphorus (P) deficiency during vegatative growth. Many people mistaken this for a fungu. Damage is near the end of leave, and leaves the color dull greyish with a very brittle texture.

Are you soil or Hydro

Don't throw the baby out... : )

smb
can I see the whole plant? please : )
Garden Knowm Reviewed by Garden Knowm on . is it a gonner??? Hello to all. I am very new to all this growing business and wandered if i could pick your brains? One of my crop has started going brown at the leaf tips and apears to be dying. do i need to get rid of it before it spreads to the others or is it worth saving? if so how? any help would be greatly apreciated. Rating: 5