I just pinched off a yellow leaf this afternoon. I let it curl up before I pinched it, in case it came back. I gave my plant a healthy dose of Grow Big (3 tbsp.) today also. I feed it a healthy dose of Grow Big every three weeks while feeding them flowering nutes, just to keep a nice boost of N. Hope this helps!Just wonder if you guys remove the yellowing leaves while growing outdoors in fear of aphids or do you leave them on so the plant can get all the nutrients out of the leave before curling and dying.