Is this Magnesium Deficiency? Need 2nd opinion before taking action

Dragula · Jul 5, 2021

Does this look like Magnesium deficiency? Wanted a 2nd opinion before I did anything to the plant. It is 6 weeks into flowering
Checked a few threads and googled some pics and they seem to be very similar.

There seems to be only a few leaves with brown spots,under 5, this was the worst one.
The lower leaves have been yellowing and some seem curled, but I know yellowing is normal in the later weeks of flowering.

Flexnerb · Jul 5, 2021

Is there any yellowing on the lowers? zinc def on lowers?

Why dont you post pics of the lowers please thanks.

Dragula · Jul 6, 2021

Flexnerb said:
Is there any yellowing on the lowers? zinc def on lowers?

Why dont you post pics of the lowers please thanks.

Yes there has been some yellowing on the lower leaves. They seem to yellow, slowly die and fall off, I am 41 days into flower tho. I noticed lower leaves yellowing around the beginning of week 5. Will edit this post with pics of the lower leaves when I can.

mancorn · Jul 6, 2021

Typically Mg deficiency is leaf yellowing from the outside in and doesn’t have spots. Looks like this.

FuriousStyles · Jul 7, 2021

Could be calcium excess, red and orange spots along the leaf vein. Which leads to K, Mag, and Fe lock out. Be thinking about adding P as well. The yellow leaf veins is a good indicator but that could be a lockout symptom ( or ph issue). Calcium is what you need readily available at week 6, but too much blocks the other things you need like the K and P. You are feeding your soil not the plant. Its about making nutrients available not force feeding. You could check your run off ph as well to get a better picture.

Your plant looks really nice, with 3 weeks left and with those nice green nutrient banks, you should make it through to the end just fine. Should be starting to taper down nutrients instead of feeding more and get that nice fade at the end.

Pretty cool your python peeking in to see what's up!

1989cheeseSOG · Jul 7, 2021

no it's not mag

it is a calcium deficiency

i got it a few times running sealed with co2 and sometimes too high RH. co2 increase cal requirements and high rh reduce cal assimilation

you need give your plants calmag, 3/1 cal/mag is a good ratio
what is the ec of your water out the tap ?

Dragula · Jul 7, 2021

1989cheeseSOG said:
no it's not mag

it is a calcium deficiency

i got it a few times running sealed with co2 and sometimes too high RH. co2 increase cal requirements and high rh reduce cal assimilation

you need give your plants calmag, 3/1 cal/mag is a good ratio
what is the ec of your water out the tap ?

Gotcha, just picked up some calmag from the local grow shop gonna try it out tonight.. will check ec when I can. Thanks for the help

Dragula · Jul 7, 2021

FuriousStyles said:
Could be calcium excess, red and orange spots along the leaf vein. Which leads to K, Mag, and Fe lock out. Be thinking about adding P as well. The yellow leaf veins is a good indicator but that could be a lockout symptom ( or ph issue). Calcium is what you need readily available at week 6, but too much blocks the other things you need like the K and P. You are feeding your soil not the plant. Its about making nutrients available not force feeding. You could check your run off ph as well to get a better picture.

Your plant looks really nice, with 3 weeks left and with those nice green nutrient banks, you should make it through to the end just fine. Should be starting to taper down nutrients instead of feeding more and get that nice fade at the end.

Pretty cool your python peeking in to see what's up!

Thanks man.. im hoping I can get by okay! They've been doing awesome so far. it progressed a little more last night I noticed. Just picked up some calmag gonna try that and see how she responds.

1989cheeseSOG · Jul 7, 2021

do you use co2?if not you want your water around 0.45mS before adding nutrients not less

if you have high rh at night (<65%) it will slow calcium uptake and on some strains you can get defiencies

Dragula · Jul 7, 2021

1989cheeseSOG said:
do you use co2?if not you want your water around 0.45mS before adding nutrients not less

if you have high rh at night (<65%) it will slow calcium uptake and on some strains you can get defiencies

I do not use co2. My tent stays around 45%-55% normally..The tent was sitting around 55%-65% for a week or two straight cause it was raining constantly. I'll be ordering a dehumidifier for the future.

GNick55 · Jul 7, 2021

here for next time

GNick55 · Jul 7, 2021

GNick55 said:
here for next time View attachment 1143496

when these needs increase it needs to be feed about 5 days before.

Flexnerb · Jul 8, 2021

Dragula said:
Yes there has been some yellowing on the lower leaves. They seem to yellow, slowly die and fall off, I am 41 days into flower tho. I noticed lower leaves yellowing around the beginning of week 5. Will edit this post with pics of the lower leaves when I can.

Looks like a minor root ussue too. The top pic for sure. Seems like a cal issue that is making trouble in the root zone. Ill bet you get some cal in there and you are all good.

Dragula · Jul 8, 2021

Flexnerb said:
Looks like a minor root ussue too. The top pic for sure. Seems like a cal issue that is making trouble in the root zone. Ill bet you get some cal in there and you are all good.

Yea I was afraid of that, this plant the buds seem to be smaller than the rest. Hopefully she bounces back. Giving her some calmag tonight. Thanks for the help

GNick55 · Jul 8, 2021

Dragula said:
Yea I was afraid of that, this plant the buds seem to be smaller than the rest. Hopefully she bounces back. Giving her some calmag tonight. Thanks for the help

small buds could be from the plant turning hermie and producing seeds..
means nothing to the quality of the weed..

Mugwort · Aug 29, 2021

FuriousStyles said:
Could be calcium excess, red and orange spots along the leaf vein. Which leads to K, Mag, and Fe lock out. Be thinking about adding P as well. The yellow leaf veins is a good indicator but that could be a lockout symptom ( or ph issue). Calcium is what you need readily available at week 6, but too much blocks the other things you need like the K and P. You are feeding your soil not the plant. Its about making nutrients available not force feeding. You could check your run off ph as well to get a better picture.

Your plant looks really nice, with 3 weeks left and with those nice green nutrient banks, you should make it through to the end just fine. Should be starting to taper down nutrients instead of feeding more and get that nice fade at the end.

Pretty cool your python peeking in to see what's up!

What python?

FuriousStyles · Aug 31, 2021

Mugwort said:
What python?

Maybe its a boa? Peaking out by the ice cream sign

Dragula · Sep 22, 2021

FuriousStyles said:
Maybe its a boa? Peaking out by the ice cream sign

He's a Fire ball python

Mugwort · Sep 23, 2021

Ahh...an inside THC Farmer joke. It worked! I spent a couple of minutes enlarging and scouring pictures looking for a snake and then another couple looking for the ice cream sign!

Is this Magnesium Deficiency? Need 2nd opinion before taking action

Is this Magnesium Deficiency? Need 2nd opinion before taking action

Dragula

Flexnerb

Dragula

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mancorn

FuriousStyles

1989cheeseSOG

Dragula

Dragula

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1989cheeseSOG

Dragula

GNick55

GNick55

Flexnerb

Dragula

GNick55

Mugwort

FuriousStyles

Dragula

Mugwort

Is this Magnesium Deficiency? Need 2nd opinion before taking action

Is this Magnesium Deficiency? Need 2nd opinion before taking action

Dragula

Flexnerb

Dragula

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mancorn

FuriousStyles

1989cheeseSOG

Dragula

Dragula

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1989cheeseSOG

Dragula

GNick55

GNick55

Flexnerb

Dragula

GNick55

Mugwort

FuriousStyles

Dragula

Mugwort

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