Tobacco Mosaic Virus

Good morning Gromies
Ive been out if town for a few days working. My wife has been keeping an eye on the seedlings for me. She called yesterday and said that 3 of my sprouts are deformed, wrinkled and have a yellow mottled blotching.

Ive popped 12 beans (4 strains, 3 beans ea) and the other 9 are fine and vigorously growing. I haven’t got a pic to show, im on my way home right now. Just pulled over to gas up so i thought id make a quick thread about it.

I do smoke cigarettes and am very careful not to smoke around or handle any plant without gloves. Also all stainless steel tools are kept in a glass of 70% iso. All solo cups are soaked and bleached In-between use. Im fairly certain it was an infection from the breeder or whoever packaged the beans.

TMV is not something i want in my garden and im afraid of infecting others. What are my options with these beans. Is the bud ok to smoke if i do keep them? I know theyre shot now for pollen and seed.

Strain is Epiphany from GGG

4 Likes

I wish you had a picture.

Id suspect operator error before TMV. Overwatering specifically when you say yellow and upset.

What is your experience with growing? Not being a dick just getting background info. I live in tobacco country next to a brewery that grows hops and have never seen TMV or HLV. I’ve also never got seeds from a breeder.

Tldr I don’t think it’s TMV.

6 Likes

@Calyxander thank you

Im about 2.5 hrs away from home. Ill get some pics up so you can see.

Thanks for the quick reply guys!

2 Likes

Yeah my last crop i had vegging what you described is how 20 of my seedlings died and to date before that i only have lost 2 seedlings to however they died so im hoping its something fixable

1 Like

For me it’s impossible that TMV goes on cannabinacea cause it’s not a solanacea
Peace out

5 Likes

Im really hoping im wrong and just over reacting. I haven’t watered since i made up the seedling soil, so that comes to 6 days now. But the sprouts in question are 4 days above ground.

Arent they related tho, just like nightshade too

I’m garbage at dirt growing, so I’ll let the others speak to your watering schedule.

Do check your pH. WhenEVER I have a stupid random issue, is either something stupid I did, or pH

5 Likes

I actually dont check pH. I use 0ppm RoDi
The seedling mix is a 50/50 coir verm with 20% EWC.
To that, i add perlite for a final ratio of 60/40

Wife said she didnt water, but yeah, we’ll see when i get home.

I’m telling you. pH does some shit. I don’t use RO and I grow in hydro. I’m way low tech. Cat litter buckets and maxibloom seed to harvest. I do own the fanciest pH pen I could find. pH is important.

Is the seedling mix normal for you? Something you have used before? EWC seems hot for seedling, but idk shit about dirt.

Eta: tell me more about 50:50, 20% 60/40 what’s the end ratio of coir, verm, EWC perlite?

1 Like

I completely agree, pH does matter. I just assumed that the coir is naturally slightly acidic. Verm is neutral and the castings add the microbial and balance with humates.

Normally id use my soil from my no-till bed or direct sow into it.

The ewc could be?? Ehh, but its pretty gentle from my past experiences. 1-0-0

Yes ive used this mix for some time now. I completely avoid peat

2 Likes

I use 1 brick of burpee brand coir. Yeilds 8qts when hydrated.
8qts of dry vermiculite (horticultural med)
16qts total.
Then i add 3.8 qts ewc
Total 19.8qts
Then the perlite is added and thats approximately 9qts

1 Like

Blue solos are the Epiphany

Dude it does look like she hit the sprouts. The Epiphany has algae on the surface.
And the vast majority of the sprouts are light, but theres a couple exceptions. Im thinking this is a watering issue. Possibly pH but thats from the water.

Hmm, cant wait to have “the talk” tonight with the wife.

4 Likes

Im still open to the TMV, but she made it sound like alot more “yellow motteling” “variegation” than a osmotic/transpiration issues.

This would be my first encounter,(if it really even is). Those seedling leaves look pretty rough. And then the 4th in the center. (Mabey a sensitive one?)

General concensus… let em dry and see?
Or scrap. Im open to scraping BTW. Im too careful to allow a possibility of cross infection.

Some lines or older seeds throw out some wonky seedlings. They may just grow out of it. I dont believe theres been any confirmed cases of TMV in cannabis. I could be wrong.

9 Likes

Thats what im hoping now, but you dont see any viral? Hop latent?

1 Like

So you popped 4 strains, are the wierd ones all one strain ? If not i wouldnt worry.

2 Likes

Ive never seen it in cannabis plants but Deepseek summary

Cannabis (Cannabis sativa) can be experimentally infected with Tobacco Mosaic Virus (TMV) under controlled conditions, but susceptibility in natural or agricultural settings is limited. Here’s a concise breakdown:

  1. Host Range: TMV primarily affects plants in the Solanaceae family (e.g., tobacco, tomatoes). While it has a broad host range, infections in non-Solanaceae plants like cannabis (Cannabaceae family) are less common and typically less severe.

  2. Experimental Infection: Studies show TMV can infect cannabis when artificially inoculated, causing mosaic symptoms, leaf distortion, or stunted growth. However, these effects are often milder compared to its impact on tobacco or tomatoes.

  3. Agricultural Significance: TMV is not a major pathogen in commercial cannabis cultivation. Issues like fungal diseases (e.g., powdery mildew) or pests are more prevalent. Documented field cases of TMV in cannabis are rare, suggesting low natural susceptibility or asymptomatic infections.

  4. Transmission Risks: TMV spreads mechanically via contaminated tools, hands, or plant contact. Growers working with both tobacco and cannabis should practice strict sanitation to prevent potential cross-contamination, even if the risk is low.

  5. Misidentification: Symptoms resembling TMV in cannabis might stem from other pathogens (e.g., Hemp Mosaic Virus) or environmental stress, leading to potential misdiagnosis.

Conclusion: While cannabis is technically susceptible to TMV under experimental conditions, it is not a primary host, and TMV poses minimal threat to cannabis crops in practice. Preventive measures, such as tool sterilization and avoiding contact with infected plants, remain prudent.

4 Likes

Yes, the 3 in question (blue solo) are 1 strain. Epiphany from GGG.

The 4th is a violet cherry from Bodhi. This one im sure its a water/nute thing. Shell out grow it.

1 Like

Also grow in nc finest tobacco county…i second this…NOT TMV

4 Likes