Is this Tobacco Mosaic Virus (TMV)?

[gbd]

I posted this in the new growers forum but it seems better suited for the infirmary.

Hi all! I've been having leaves turn brown and die at an alarming rate. It starts as small spots and ends like this:

https://www.autoflower.org/members/gbd/albums/think-different-tmv/90997-td-tmv.jpg

At first I thought it was nute burn or lockout, but I'm growing in dwc and my ph has always been on point. I've changed the res 3 times now, lowering nutes each time and the problem continues. I've removed the first two (oldest) sets of leaves, as they were more than 50% dead. Any input would be appreciated. I know there is no cure for TMV, but has anyone finished out a grow with an infected plant?

On a related note, google "classical biological control of narcotic plants."

Thanks in advance for any help/information!

 

[surffreak23]

I've had plants do this but it was due to over watering... It seem some phenos of some strains are very susceptible. This can also be caused by phosphorus deficiency...

 

[surffreak23]

What is the feeding schedule? (PPM etc.) Also what strain and how high is the water level in the buckets relative to the roots? Halfway up? Full? Also do you have enough oxygen getting to the roots?

 

[gbd]

What is the feeding schedule? (PPM etc.) Also what strain and how high is the water level in the buckets relative to the roots? Halfway up? Full? Also do you have enough oxygen getting to the roots?

thanks surffreak, replied to you in the new growers thread.

 

[Hugo]

Hi gbd,

It seems like there are many things other growers would like to know to help you better. Otherwise it's all in the hipotheses world and no real pratical diagnosis and efficient solution will arise. In the Cannabis Infirmary forum you'll see a sticky thread named troubleshooting form. There's a form specifically for hydro. Can you please paste it here and answer those questions? It will help us help you.

 

[gbd]

@hugo I started to but didn't have time to finish. There's more info in the other post if you're genuinely intersted in helping. Nice job on the form, very complete.