Possible Fugal attack, what to do now?

[RandM999]

Background:
I'm growing in soil ( foxfarm ocean forest ), multiple strains, cfls for veg and 400 w hps for flower.
I've been battling this borg for a long time, and am at my wits end on what to do. So any advice would be appreciated.

I've tried all the nutriant and enviromental based solutions, such as adjusting ph, NPK ratios, etc with no positive results. I've repeatedly flushed and treated the root zone with h2o2 to kill any root born pathogens.
This shows up on seedlings, clones and mature plants.

My water is from our well, and no I havent had it tested. The ph is 7.0 and it does have a fairly heavy mineral content. I do not have a RO filter for the water installed. I have had succesful grows without one up to this point.

I generally feed my plants with Jacks Clasic Citrus Feed 20-10-20, although I have used other products, mostly earth juice. It doesn't seem to matter what or how much I feed, I still have this problem regardless of what I feed my plants with. This shows up in seedlings that have not been given any nutes at all, as well as mature plants that are being given a regular feeding.

I use supliments for trace elements and for calcium and magnesium. Again, it doesnt seem to have any affect on this problem. I've tried different supliments without noticable improvements.

Temps have varied from 60 deg at a low to 90 deg at the high end. My flower room has temp controls to keep it between 65 deg and 75 deg. My grow room temps are also stable at the same temps. Humidity is beyond my control, but generally is around 40%, depending on the weather. This seems to happen regardless of time of year and humidity.

I've come to the conclusion that what I have is some kind of fungus that has spread to virtually all of my plants. I've been trying to treat it with seranade, without much in the way of success. I am now trying a copper based fungacide, again with limited success.

The symptoms seem to start at the edge of the fan leaves, with a brown stain like appearance, and eventually it will kill the entire leaf. On more mature plants it will kill off all of the fan leaves, I do try to pull the affected leaves, but it just shows up on the other leaves. Harvest is severely affected, trichome count is affected to the point that the resulting smoke is almost worthless on some strains, and so so on other strains. This is probebly a side effect of damage to the fan leaves not being able to feed the colas properly.

I'm having a hard time posting pictures, but I will try and get more of them up to show you whats going on here.

Thanks in advance for any input that you can give me.

 

[RandM999]

More photos:

 

[RandM999]

And still more, on mature plants:

 

[JJ Bones]

It looks like some sort of nutrient toxicity. A flush won't be as effective if it's high TDS water.

 

[RandM999]

Nope, not a deficiancy. Its one of the multitude of fungi known as rust fungas. I've spent a year thinking it was a deficiancy of sorts, or an enviromental factor. I tried every trick in the book, browsed all the forums and websites. Cleaned, re-cleaned, threw out all my affected plants, and cleaned again. I used a sulfer burner and did both my grow and flower rooms. I started over from scratch with new soil.
AND IT STILL CAME BACK!!!!!!!!!

This stuff is nasty.

I'll take spider mites any day over this.

I finally found a website that describes it to a tee, using tomatoes as a demo, and decided that , what the hell, lets see if treating it as a fungas will do anything. I had nothing to loose at that point. As the plants that did manage to make it to maturity where second rate at best, some where unusable due to no potency at all. And, as I sprouted my yung uns in the grow room, the plants I transplanted outdoors in premium potting soil where likewise TRASH at harvest. Big colas, big plants, no potency.
I was tearing my hair ( whats left of it ) out in frustration. I kept thinking it must be eaither a deficiancy, or just poor genetics. And treating it as such.

Now I am treating it with a copper based fungacide made by Ortho, and finally showing signs of improvement. I also am treating with another product by Ortho that seems to show some promise as well, called Ortho Max. The main ingrediant is Chlorothalonil. I've been alternating these on a weekly basis.

I also have been meciless in trimming off all infected leaves that I can find and disposing of them, not composting them, as I don't want to re-infect anything.

Not to disparage anybody, ot cast judgement, but it seemed that the only advice I could get from the forums, here and elsewhere, was that it was cal/mag def. or potasium def, or any of the other usual suspects. All of these solutions I was already treating for in the initial signs of problems, with no improvement.

What is really needed is some kind of 'sticky' dedicated to the identification and treatment of fungi attacks, and maybe bacterial attacks. I'm no scientist, hell I can't pronounce half the stuff I see, much less understand it. It shure would be nice if somebody that is well versed in this nitch could come up with a guide on the treatments and identification of this. Preferably in a language that a layman could understand.

I hope this helps somebody else that is fighting this monster.

Thanks for any replies and comments