Can anyone help identify this problem?

[Ringodoggie]

I have had issues recently with leaves browning and dying off. At first it was rare but now it seems like it's happening to all my plants off and on.

Most recently I took some clones from a White Widow Auto and the clones were nice and green and healthy. They are about 3 weeks old and the leaf malady is now showing on the clones and the mother, both.

I use Cal-Mag every time I fertilize. And, I use a tiny extra (about 9ml per gallon) since I read autos like a little extra Calcium.

Maybe I got a bad bottle of Cal-Mag or something. I use acid or base to adjust pH every time I water. Usually about 6.4 to 6.7. I let my water sit out to help dissipate the chlorine, etc.

Basically doing the same thing I have done for many years and I keep getting this malady on the leaves.

Any suggestions or comment are appreciated.

Thanks.

 

[acespicoli]

drainage holes in solo cups?
tested your npk ?

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watering plain water?
roots not working due to early dampness could look like nute deficiency
without changing and testing just a guess
might be able to tune it up a bit with watering nutes on the flowering one
the droopy leaf reminds me of super wet ones let it go bone dry for a couple days on them youngins and see what happens?
overall your plant looks pretty nice

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[TanzanianMagic]

I have had issues recently with leaves browning and dying off. At first it was rare but now it seems like it's happening to all my plants off and on.

Most recently I took some clones from a White Widow Auto and the clones were nice and green and healthy. They are about 3 weeks old and the leaf malady is now showing on the clones and the mother, both.

I use Cal-Mag every time I fertilize. And, I use a tiny extra (about 9ml per gallon) since I read autos like a little extra Calcium.

Maybe I got a bad bottle of Cal-Mag or something. I use acid or base to adjust pH every time I water. Usually about 6.4 to 6.7. I let my water sit out to help dissipate the chlorine, etc.

Basically doing the same thing I have done for many years and I keep getting this malady on the leaves.

Any suggestions or comment are appreciated.

Thanks.

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This:

- Overfeeding
- Too low a pH
- Overwatering

A low pH locks out mobile nutrients like N,P, K, and Mg.

If you're not using tapwater, you don't need calmag. That's only for reverse osmosis, filtered or very low EC water.

Also - what is the medium?

Organic: 7.0
Coco Coir: 6.0

 

[Creeperpark]

When you add Calmag to tap water you raise the hydroxyl content and that will cause spots on the plant. It's best to only use cal-mag to RO or Rainwater when watering. Thats what I see.

 

[blondie]

Is this a new strain for you? It may take some time to dial in. Take two clones up the EC in one, stop giving nutes to the other. Do the same with water, though I wouldn’t recommend totally stopping watering. Essentially change up what you are doing, to a point. Good luck.

 

[Ringodoggie]

Thanks gang. I appreciate the input.

This has been a strange one for me. I currently have 5 grows in progress. All the grows are in Fox Farms Happy Frog. All get the same Fox Farms Trio nutes and the same water.

2 tents are indoors. One exhibits the issues and one does not. Same strains in both with a couple odd plants that are different strains. Mostly Mexican Airlines autos.

1 tent is in the garage. This is the worse case. I'll take a pic later (it's 5AM and the lights are still off). Really bad. Worse crop I think I have ever grown. And, it's Barney's Farm LSD. A strain I have grown out many many times. Very hardy but this crop is horrible. And, because the plants are so unhealthy, I got white flies and some other bug. Pics later.

I also have 2 outdoor grows. One on the front patio facing North and one on the back patio facing South. The South grow sux. Lots of leaf necrosis and bad yield.

The front patio is fucking awesome. No leaf necrosis. The buds are huge and they are COVERED with trichs. These plants show no issues at all.

And, again, all the grows get the same water, nutes and soil.

Damn. LOL

I have a nice BlueLabs pH meter and the new probe is about a year old. I calibrate it regularly and confirm it with 7.0 and 4.0 solution. Still, I think my issue is pH being too low. After a couple years with this SoCal water, I learned it's always the same amount of acid to take it from 7.8 (which is what it is out of the faucet and sitting in jugs for 24 hours to help dissipate the chlorine. A standard practice of mine for decades.) down to 6.5 which is where I usually pH to. I usually just take 20 drops in each jug and don't even check with the pH meter. Once in a while I will check just to make sure nothing changed. However, I noticed that if I check it after mixing and it is 6.5, an hour or 2 later it is closer to 6.3 or 6.2. So, it's possible that my water has been too low pH. I ALWAYS check pH when I water with nutes. Again, I try to keep it right in the middle at 6.5.

In any case, everything except 2 mothers and the clones is up for harvest within a week to 10 days. So, the problem is about to go up in smoke. LOL The clones are looking awesome. However, the White Widow mother is still showing leaf necrosis like I posted above. The other mother, an Alien Gorilla Fem/Photo is doing awesome. Green as the Green Giant and healthy as fuck.

I'll post a few more pics after the sun comes up (another sleepless night because of pain. Old age really sucks a lot. LOL)

Again, thanks much for the input. Seems there is always something new to learn in this hobby.

 

[Ringodoggie]

Here are some pics...

Spotted leaf. This was rampant in the garage tent, mostly.

Garage tent, overall with some bud closeups...

The buds in this tent look not bad...

The front patio plants are almost necrosis free. However, bugs abound.

Leaf miners..

Ants farming something..

Is this a whitefly egg sticking out from the leaf?

Even with all these bugs, the buds look great...

And, overall, the plants are nice and green with none of the necrosis all the other grows have.

Here is the Alien Gorilla that seems unaffected. However, I am noticing some twisted leaves. What is that about?

 

[Ringodoggie]

Couple bud shots. We are a few days to a week away from harvest.

Overall, the tent doesn't look bad. All those single bud plants are an experiment from the seeds I bred a couple months ago. Ready for harvest.

The buds look nice and frosty but with all these issues, my yield has suffered more than anything.

 

[Ca++]

I have no solid answer, but if someone read your post to me, I would be thinking bugs. along side the calmag use, but you say this has not changed. Are you sure? It's not another brand perhaps, or low N type.

At 9ml/G I might be expecting 80ppm of Ca. That is really quite high, if it's just being used alone. There could be 30ppm of Mg and 60ppm of N also. It's hard to say what you are using. I'm not sure if it's tap, or the taps condition. Yet I'm still drawn back to bugs, by the notion each crop is different. Though I'm not sure the best one, is actually without signs.

 

[Ringodoggie]

Bummer. I am still chasing this issue.

I think part of it was that I was getting sloppy measuring nutes. I may have slightly overdone it. Plus, sloppy with pH up and down may have contributed.

Also, I noticed when I pH down I measure a few minutes after mixing and it's right on 6.5pH. 2 hours later, I measure the same jug and it's closer to 6.2. So, I may have been taking my water down a little too much. How long does it take for stuff to ionize in the water? I always allowed a few minutes and seldom more.

Fortunately, most stuff is only days away from harvest. Still, the White Widow Auto just can't shake this necrosis. And, it's strange because the clones from this WW are in the exact same environment, same water, etc and they are doing great.

Also, the Alien Gorilla is doing awesome and shows no signs of the leaf issue. Same soil, food, water, etc.

In 50 years of growing I have never run into anything I couldn't diagnose.

Here are some updated pics.

 

[Ca++]

I think it could be a systemic fungal infection, and it fits the story line.