Anyone know what may have caused this? It came on overnight....or at least I didn't notice it since lights off today. Now they are back on and I found this! Looks like someone poured bleach on the leaves...they are structurally fine...just WHITE!!!
It is light burn....only one bit of the plant, but I've raised my lights! HPS are hot little suckers! Paying closer attention to the distance from light to canopy! Thanks!!!