nute burn

I have just noticed a few leaves on my plant are stating to brown at the edges think i have been over feeding a little i dont think its a goodidea to flush tho i only have a couple of weeks to go so think i might just ride it out. Wot do us think i should do xxxxxxxxxxxxzxxly

skip a few nute feedings, just use water, then feed again if there is time. if not just go right to flush.