Been watching signs for about a week but It really looks like boron def. As you see I'm about 2-3 weeks from harvest should I treat and how? Using cana coco and don't have any other def. or issues. Thank you !
Sorry for hps pictures but leaves are yellowing from tip and are dry to crumble. Tips are clawing up.
did my homework here is where I get stuck.. I could threat it with Borax laundry boost as it contains boron. A tsp of borax = 3mg boron. I can't find recommend dose but it says below ½ tsp per gal. otherwise it is toxic. Should I go with a quarter that is roughly 1.5 mg of boron in one gal.? Seems like pretty low. (This is a coco grow) Or should I just pump up nutes? I'm at 1/3 strength of fed chart.
Just added ½tsp borax to my gal of nutrient solution. Hope it will help. Not even 100% sure about diagnostic.