I have asked quite a few people and no one seems to be able to give me a straight answer. Here is some info. My two girls just started flowering, she has been doing this for most of veg. Overall the plants look really healthy. But her older (usually sugar leaves) leaves seem to be doing this a lot. It's not on any of the new Grow. Outdoor grow She is on a drip system to provide water everyday but the drip is only giving her about 2.5 gallons a day and I am giving her an addition 4-5 gallons of water by hand and as of recentally have been balancing the water down to 6.1ish ph. The water normally out of the drip seems to range anywhere from 6.6-7ph. She gets cal mag, and normal doses of nutrients. They are in 65 gallon smart pots. Temperatures have been high 90-105 up here in NorCal. My initial though were maybe a p-k deficiency but she has been getting plenty of that with the bloom nutes. The feeder roots I have seen spear to be bright white. I don't notice a lot of bug activity and have been spraying some neem oil and green cleaner to prevent any infestations, but only do so after the soon is down. Any thoughts?