Cant figure out what’s causing this on the leaves

[Anonymous_grower]

Plants are 5 1/2 weeks in flowering but I can’t figure out what’s causing this yellow/brownish spots, starts as few little dots near the vein then as it progresses looks like a cluster then spreads around the leaves, I’m running the fox farm line up at half strength and using cal mag, ph between 6.4- 6.8, I’ve tried to up the feed but tips got alil burnt so I backed off to half again, the problem Progresses fairly quick and I’ve been trying to solve it since week 2 of flower, my ph pen Has been slightly off but I don’t think enough to cause huge swings in soil, if you zoom in on pic you can see there’s quite a few leaves like this ..any advice or solutions ??

 

[chemistry]

Can you stick a close-up pic up of the buds

 

[mysticepipedon]

Get out a magnifier.

That's a beautiful canopy, BTW.

 

[chemistry]

Drop the Calmag? And get your PH as near to 6.0 as you can. And if your monitoring your PPM's, you could replace the calmag with more nuits.

 

[Anonymous_grower]

Can you stick a close-up pic up of the buds

Here’s close up of buds, I will try drop calmag see what happens, it called For 3-5ml per gallon I was only using about 1-2 ml per gallon and I’ll try drop my ph a bit lower too, thanks

 

[Anonymous_grower]

Get out a magnifier.

That's a beautiful canopy, BTW.

Thanks brother! And what would I be looking for ?

 

[gorillaglueaaron]

I think calcium deficiency. What's your runoff pH?

 

[Anonymous_grower]

Can you stick a close-up pic up of the buds

Here’s close up of buds, I will try drop calmag see what happens, it called For 3-5ml per gallon I was only using about 2 t lower too, thanks

I think calcium deficiency. What's your runoff pH?

im not sure of runoff I haven’t checked it, they are in a scrog setup in fabric pots only like 2 inches above the floor so all the water mixes in the same pan would be hard to get run off of each plant individually, I thought it might be a calcium deficiency aswell but I bumped it up to 4ml per gallon with no luck, my soil has dolomite lime and I put some on top of soil after I noticed this issue still no luck

 

[gorillaglueaaron]

Here’s close up of buds, I will try drop calmag see what happens, it called For 3-5ml per gallon I was only using about 2 t lower too, thanks

im not sure of runoff I haven’t checked it, they are in a scrog setup in fabric pots only like 2 inches above the floor so all the water mixes in the same pan would be hard to get run off of each plant individually, I thought it might be a calcium deficiency aswell but I bumped it up to 4ml per gallon with no luck, my soil has dolomite lime and I put some on top of soil after I noticed this issue still no luck

Have you checked with a microscope for mites?

 

[Anonymous_grower]

Have you checked with a microscope for mites?

No, Ill have to buy one and go over the plants, I haven’t noticed anything crawling on the leaves, only issue I saw was few black gnat looking things in soil but I’ve sprayed soil with neem oil and haven’t noticed them anymore.. I’ll have to look up what mites look like I’ve never seen one

 

[chemistry]

Here’s close up of buds, I will try drop calmag see what happens, it called For 3-5ml per gallon I was only using about 1-2 ml per gallon and I’ll try drop my ph a bit lower too, thanks

These are nearly done, look like week 6 of flower, most of the white hairs have gone, about 50/50 at the minute, a lot more will turn by next week.

 

[gorillaglueaaron]

No, Ill have to buy one and go over the plants, I haven’t noticed anything crawling on the leaves, only issue I saw was few black gnat looking things in soil but I’ve sprayed soil with neem oil and haven’t noticed them anymore.. I’ll have to look up what mites look like I’ve never seen one

It was just a thought, probably not true. It's worth getting one anyway as it's good for checking trichome colour. I suggest one of these:

 

[Anonymous_grower]

It was just a thought, probably not true. It's worth getting one anyway as it's good for checking trichome colour. I suggest one of these:

Oh yeah I do have one of those, I was thinking a big Sherlock homes type one I couldn’t imagine going over all the leaves with that small one lol but I haven’t taken a hard look at the leaves so it’s worth a shot, Thanks!

 

[gorillaglueaaron]

Oh yeah I do have one of those, I was thinking a big Sherlock homes type one I couldn’t imagine going over all the leaves with that small one lol but I haven’t taken a hard look at the leaves so it’s worth a shot, Thanks!

Or a scanning electron microscope:

Discover the new ZEISS GeminiSEM Family

Introducing the new ZEISS GeminiSEM Family. Your field emission scanning electron microscope (FE-SEM) enabling ultimate imaging and effortless analytics. Discover the unknown.

www.zeiss.com

 

[mysticepipedon]

Thanks brother! And what would I be looking for ?

Mites often hang out around the veins of a leaf is why I mentioned a magnifier.

Your buds look really good though and I don't see any issues on those leaves.

 

[gorillaglueaaron]

Also if you're flushing soon then this isn't even a problem. It's only affecting a small percentage of the leaves so it'll be fine.

 

[Anonymous_grower]

Also if you're flushing soon then this isn't even a problem. It's only affecting a small percentage of the leaves so it'll be fine.

I’ll be flushing in about 3weeks give or take, but since I don’t know what is causing this I didn’t want it to get to the point where it ruins it, I guess it’ll just be an eye sore for now lol

 

[Anonymous_grower]

Mites often hang out around the veins of a leaf is why I mentioned a magnifier.

Your buds look really good though and I don't see any issues on those leaves.

Some of them have alittle on the smaller leaves by the buds but majority of affected leaves are the fan leaves

 

[gorillaglueaaron]

They have mites?

 

[Homesteader]

Try gypsum and minus the carbonates that come from dolomites.