PH nute lockout??? Looks like mag defeciency?

[zone 8]

Just curious if this is a PH problem, this is my first grow and these babies are in flowering now, used Cal-mag twice early on, this is a "Sharksbreath" about 3 weeks into flowering.

It's Ugly I know, but is it salvageable?

I also have Jillybean and soucream going. By far Jilly is out-doing the others, but I know thats probably cuz I did something wrong. (PH?)

Any help on this sharksbreath would be nice!

I Did had a fungus gnat problem, but GOGO mosquito Dunks!!!

 

[darrmann]

first of all remove all infected leaves. I am looking after 46 plants for a client and I just went through what you are going through now. And yes it looks like the start of a Cal/Mag problem. The curling of the leaves would confirm this. Do you have brown spots that look like rust are on leaves that are on side or bottom of plant with very little chance of light burn!!???? And small holes starting on leaves???

What I did to correct the problem was flush the plant with water. I used 5 gal bucket of water PH 6.3 and poured it into plant pot. The size of the Pot is 1 gal and let it drain out. The next day I mixed ¼ % Fish Emolusion and lightly fed plants. Next water was normal water with Fish Emolusion. Looked after the problem real well in 2 weeks back to normal.

I over fertizized my plants and they all had this problem. I also used Epsom salts at 1 Tablespoon per 1 gal of water and foler sprayed all leaves until gal of water was all gone. I managed to spray 3 times

 

[sneakinman13]

try flushing with plain water and if problem doesnt get better within a week then im not sure. i just had some ph lock out on my moms as ive been a bit careless while harvesting my last batch.. but i just flushed them and there back on track.. good luck

 

[zone 8]

Thanks for the input! I have used cal-mag twice in veg, so i didnt think it was a defeciency, just that its locked out. I flushed them with 5.9PH RO water the other day, and my only other option is 7.1PH Tap water.... Wich would be better? I do not have a PH up or down, and so far its all organic.

 

[rubbanutz420]

No doubt about it! Been there done that...Your PH is to low.....get a PH pen and start using dolomite lime in your soil mix.....problem solved...

 

[rubbanutz420]

If your using straight R/O water, then you add nutes, the nutes will drop the PH alot, maybe down to 3 or 4's, so I would try to use your tap when using nutes, or what I do is I use 50% tap with a PPM of 300 and 50% of R/O, that brings my PPM's down to 150, but I still adjust my PH after I add my nutes..... Without a PH pen, then I would use tap, it wont drop quite as bad, but it will still drop out of proper range, depending on what kind of ferts you use....



What fert line up do you use?

 

[rubbanutz420]

By the way, very good job on realizing that its a lock-out being caused by low PH, most people know its a Cal/mag def., but dont know what caused it, then they feed with a lot of cal/mag and make it 10 times worse....so good job man...dont feed any cal/mag until you get your PH right...There is plenty of cal/mag in the soil, the plant just cant use it.

 

[sneakinman13]

7.1 will def be better then 5.9 if in soil. good luck

 

[WishDoctor]

That is not a nute problem.
You have Root Aphids Bro, typical Phantom Ca/Mg deficiency.
I just had the same problem, you even admitted to fliers i your grow.
root aphids anre mistaken for gnats. I bet they are still in your grow.
your about day 20 or so, and at day 25-30 you will be in trouble.