Sick Plant Anyone know what’s causing this?
Just wondering if anyone could help me identify this deficiency/toxicity?
nothing too urgent but want to get it sorted as just flipped them
Won't hurt to do an epsom salt foliar spray as well. It will allow plant to take in that Mag through its leaves if anything is locked out at the roots due to an abundance of P or anything else going on.
Also, if in a medium that it's possible to do so you can give them a good flush to reset anything that could be out of whack.
Looks like you may be starting to run short on magnesium. Like Shonuff said, I'd go with a foliar spray of 3/4-1tsp epsom salt per quart or liter of pH'd water when the lights go off. If it is magnesium, you should see improvement in 12 hours and recovery in about 24. Hope that helps!
Thanks for the help everyone!
Theyre in coco getting the mills line up at recommenced dosage. I’m adding cal mag and orca mycorrhizae.
I will try flushing them and foliage Epsom salts and report back
If you are in coco.. what’s your current EC in and EC out? If you could list what’s in your feed too it would help. You could be looking at lockout due to nutrient imbalance. I find that the manufacturer recommended dosage is far too high on every nutrient line I’ve tried.
Yep @monkeydo raised the important question, EC in and out and ph are usually the first things to check. As mentioned the manufacturers recommended dose is almost always too much, and you usually won't realise until you get salt build-ups in the coco and in turn comes the lockouts etc. As suggested check your input and output values as a flush may be in order, and maybe dial back the doses depending on the outcome of the runoff exam.
@monkeydo I do not own an EC Meter but the PH of the nutrient solution is 5.8 going in
i will try a combination of all suggestions above
My typical dosage per 10l of RO water is
10ml start (nitrogen rich)
2ml vitalise (silica)
10ml cal mag
3ml orca mycorrhizae
Looks like magnesium to me, as stated above.
But increasing stuff all willie nellie will get your willie in a pinch
Yep, agreed. That’s why I like my meters so much. Without more information I’m just shooting in the general vicinity if the issue instead of the heart of the issue. I’d agree that most of the time 1ml per liter of cal/mag is fine at this stage, that’s what I generally use too. Looking at the Mills Nutrient website the manufacturers recommended rate for veg at flip is 2.63ml/liter each of A&B. These rates are generally twice as high as they need to be so it’s very possibly might be seeing slight lockout from high nutrient levels. This used to happen in my grows a while back but once I dialed in the nutrient balance and ph controlled I don’t see now.
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