SOIL 7th week of flower and would like advice on deficiency

[UFO]

Hey all,
I'm in my 7th week of flower and one of my plants is showing interveinal chlorosis.

I'm growing in soil and I PH tested it yesterday at 6.5. Watering between 6.2 and 6.8.

I top dressed with guano and ecothrive charge 3 weeks ago. Watering is every 2nd day at the moment due to the heat and relatively small pot size.

Nutrients are Mills cal-mag at 1 ml/l, TA Organic Bloom at either 1.5 ml/l or 2 ml/l (depending on other additives), TA bloom boost 3 ml/l, sometimes Biobav Problem Solver at 2.5 ml/l, and recently H&G shooting powder at 1/2 dose (this chlorosis preceded that and it hasn't worsened but also hasn't improved).
EC is usually around 1.5 but is 2 with Shooting Powder (not every feed).

I have added some epsom salts to my water with no clear improvement.
This morning at lights off I used some Cannacure as a foliar spray as it seems to have iron, manganese and magnesium which I thought may help but I'd appreciate any advice.

PPFD c750
Temps 21°-26°
VPD 1.3-1.5




and a healthier one of my other plant:

[Gingerbeard]

Bad news is, your plants are dying. Good news is, they are supposed to.
The discoloration is from late stage flowering. All the nutrients and whatnots are getting sucked up by the flowers as your leaves are done doing what leaves do.
Although it is common, it does not always happen. Keep on what you are keeping on.
Before you ask, flushing is your call. Some do, some don't.

[Bluey]

This looks like the start of what one of my sativas does commencing about week 3 of flower followed quickly by rust spots that spread fast. Effects top leaves or those getting most light which doesn't appear to be how yours have started, they look lower and lesser light or were they top leaves when it commenced?
I havent solved the problem this end but my next try is reducing calmag and moving to flower nutes earlier in that sativa. But my seeds are mixed up and dont know which is which till it starts...duh!

[UFO]

Thank you both - I've seen you both have threads and they are impressive grows!

It's quite recent so it appears to have impacted leaves fairly uniformly. I'm hoping I can just care for that one and it not have a big impact on quality (quantity either but even a couple of Oz will be plenty from that plant). I hope the foliar gives it a quick boost for now but we will see.

Oh, and I know what you mean when talking about not knowing which seed was which. My fiancée didn't realise I'd used a couple of the freebie seeds I got with my order so she moved the soil plugs around without thinking about it not noticing the little label mixing them up. I figure that as they near harvest I might be able to do some visual identification looking at other people's results on the same strain. It won't matter too much of not though. First grow so I will be trying some other strains out for a while on the next few grows anyway.

[Bluey]

Don't use foliar spray on your flowers. Don't wet them with anything.

[Gingerbeard]

Foliar? As in spray? Don't do it. Never spray during flowering. Especially as far along as you are. What you spray will remain in your flowers.
Seriously. Don't worry about the leaves. What is happening is natural. What is happening is good.
Nonononono.... no foliar spray!

[Radeon]

Foliar? As in spray? Don't do it. Never spray during flowering. Especially as far along as you are. What you spray will remain in your flowers.
Seriously. Don't worry about the leaves. What is happening is natural. What is happening is good.
Nonononono.... no foliar spray!

Spot on. Listen to him/her^^. They speak logic. They are doing beautifully. Relax, crack a beer, smoke a j, and wait for the prize....Seriously, this late in the game bro, chill. You're golden..

[Rwise]

So your saying that was not you at the circus last week? Damn who the hell did I toss a joint to?

[Gingerbeard]

't warn't this gingerated clown. I don't do joints. The beard gets nervous when it gets that close to fire.

[Rwise]

LOL I caught mine on fire at a ZZ Top concert, wasn't directly related to a joint.

[Peppercorn]

Hey all,
I'm in my 7th week of flower and one of my plants is showing interveinal chlorosis.

I'm growing in soil and I PH tested it yesterday at 6.5. Watering between 6.2 and 6.8.

I top dressed with guano and ecothrive charge 3 weeks ago. Watering is every 2nd day at the moment due to the heat and relatively small pot size.

Nutrients are Mills cal-mag at 1 ml/l, TA Organic Bloom at either 1.5 ml/l or 2 ml/l (depending on other additives), TA bloom boost 3 ml/l, sometimes Biobav Problem Solver at 2.5 ml/l, and recently H&G shooting powder at 1/2 dose (this chlorosis preceded that and it hasn't worsened but also hasn't improved).
EC is usually around 1.5 but is 2 with Shooting Powder (not every feed).

I have added some epsom salts to my water with no clear improvement.
This morning at lights off I used some Cannacure as a foliar spray as it seems to have iron, manganese and magnesium which I thought may help but I'd appreciate any advice.

PPFD c750
Temps 21°-26°
VPD 1.3-1.5




and a healthier one of my other plant:

Interveinal chlorosis can be a challenge!

From what you've described, it's likely an iron deficiency. The fact that you've added Epsom salts without improvement suggests it might not be a magnesium issue.

Consider adding an iron-specific supplement, like iron chelate, to your regimen. Also, review your watering schedule and ensure your plants are getting enough moisture.

Lastly, keep an eye on your VPD and adjust as needed to prevent water stress.

[dirtymike]

Oh My a third I see

[UFO]

Thanks for the advice all! Hopefully I'll just get through the next 3 or 4 weeks with no drama!

[Gingerbeard]

(evil laugh) Buuwwwaaaahahaha! Yer drama ain't over, kid. It's trichome watching time!
Get a jump on it and check out the main GWE website for harvest information. See you then.
(less evil but still ominous) Buwaahaha...