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jadednightowl

Does my hosta have a virus??

A quick update before getting to my original post I had made in a different forum last weekend - I dug up the infected looking hosta because I panicked over the weekend and didn't know what to do. I made sure to dig very far out around where I believed the roots/root ball would be, and what came up was a very solid chunk of dirt with no visible roots sticking out on any sides. (Soil here is dense and clay-like to begin with, and it had just rained). I put it straight into a garbage bag. I scrubbed all my gardening tools by hand with dish soap, followed by sterilizing with rubbing alcohol and Lysol. I contacted my local county extension office for a state university and they accepted the plant for viral testing, so we'll see what comes back!



Original post:

I'm really new to gardening and my hosta garden I started in late fall 2024 was basically my first big endeavor, so I'm still trying to learn as much as I can about caring for my hostas. I just learned about hosta virus X yesterday while reading about how "sports" come about.


For background info: I bought 2 Blue Angels, 1 Guacamole, and 1 Patriot in late fall from a reputable local garden center that were all discounted because it was the end of the season. They were among the last plants on the shelf and had some torn and some crispy leaves, but otherwise had healthy looking stems. I planted them along with 3 other hostas I already had (Autumn Frost and Stained Glass, the third is super tiny and located next to the Stained Glass but I don't know yet what it is because it got so crispy in its original location from the previous homeowners planting it in full sun) that I transplanted from another area of the garden, and then just planted an August Moon at the end of March on the far right side of the garden.


I've been dealing with earwigs munching on one of my Blue Angels, and tonight while spraying some neem oil and insecticidal soap the flash light really made me notice that the less-eaten Blue Angel looks like it has signs of hosta virus X. The white cast on the plant is from recently sprinkling diomataceous earth as another form of insect repellent; it's the ink bleed and mottling that has me really worried, and now looking back at a previous photo from about 2-3 weeks ago (photos 3 and 4) it's obvious that one of the leaves is curled up abnormally at the tip, so this isn't new/related to my treating for bugs that I just started this week.


I included photos of the layout of the hostas (photos 2 and 3) for reference to show how they're spaced apart (because I was anticipating them growing bigger and needing the space) in relation to the location of the infected Blue Angel, but I don't even know if that matters in terms of preventing spread of the virus. We've had days with really heavy rain over the past few weeks, and the way it sits up higher than the other hostas has me concerned that any water run off going downhill could even cause contamination.

If this IS hosta virus X, are all of my surrounding hostas doomed?? Could my other Blue Angel (or even the Guacamole and Patriot I bought at the same time) also have already been infected even though those aren't showing signs right now?

Would it be worth it to get a kit and test this hosta, or is it pretty definitive just by looking at it? Should I test the other hostas, or does it take time for normal appearing hostas to "become positive" for the virus?






Comments (11)

  • 2 months ago






    Here are some better photos of the Blue Angel that I took before I turned it over for testing.

  • 2 months ago

    It looks infected to me. When you see that spotting and ink bleed along the veins, I think that’s a key indicator. On the front page of the Hosta Library there is a very good video by Chris Larson. It’s worth watching.

    debra

  • 2 months ago

    Everyone has been so helpful, I really appreciate it! I'll post an update of the viral test results, should have them in about 5-10 days.

  • last month

    Tested for 10 viruses - all negative. They suspect an abiotic cause, such as a pre-emergent herbicide like Preen - and we just so happen to have this. I believe my husband had our landscaper apply this some time ago, so I suspect they may have spread it too close the hosta garden. But I do think it's odd that only one hosta was affected and so dramatically.

    In any case, I'm glad it wasn't HVX and the rest of my hostas are safe!

  • last month

    I just reread your results…..are you saying the Blue Angel is NOT infected? I’m not an expert in fertilizers, but I

    think the results could be wrong. Your first leaf picture shows classic signs of the virus. Even if you don’t watch the

    Chris Hansen video, there are pictures of HVX on the home page of the HL. It’s worth it check to it out. Your other hostas

    Should be fine, the virus lives in the soil. That’s why you can’t plant another hosta there for 3-5 years. I’ve removed 2 hostas

    This year already. I didn’t need I test because I’ve watched the Hansen video, I believe I know it when I see it. My

    biggest and older hosta, Sum &Subtance had the virus and just yesterday I found an infected Lancifolia. I have 2

    Posts just recently that you may want to look at. BTW, I do always check with forum members, but sometimes after

    I have started digging

    debra

    D

  • last month

    Yes they told me it's negative for HVX, they believed a pre-emergent weed killer got on to the leaves. Is it possible for a hosta showing leaf changes like mine to test negative? I was surprised it was negative too, but I feel like it would be even more surprising if this was a false negative test. I gave them the entire plant for testing so they had plenty of specimen to work with.

  • 29 days ago

    Nowhere in your original posting did you indicate the use of a pre-emergent weed killer. I've been doing a quick on-line search for picture of damage caused by PE weedkiller and have not been able to find any. Based on that my feeling is that they're taking a stab in the dark. I'll stick with my original assessment that the pictures shown very clearly show signs of typical HVX ink bleed.

    On a slightly different note, I had an incident earlier this year where I noticed clear evidence of fairly extensive tissue collapse on a 'First Blush' I received as a bare root by mail-order last year. I sent the supplier several pictures and it was the considered opinion of the grower in the Netherlands that the damage was due to nematodes. Well, I don't know what he/she was smoking that day bu as it happens I do have experience with foliar nematodes and it wasn't even close. My feeling is they simply provided a quick answer to get me off their back... hoping I wouldn't know any better...

    Pieter

  • 27 days ago

    I must say once again and also agree with Pieter, that regardless of the test, I am sure it’s

    infected. Perhaps the PE fertilizer threw their results off.


    debra

  • 27 days ago

    Correct, I personally never used any weed killer around these plants. BUT we do have it in our garage, and a few days after posting I found out from my husband that our landscaper had used it in the garden where my hostas are. I regret not having any more of the plant to test again, but it is what it is. I'll keep the spot where it was bare for a few years. Thank you all!

  • 11 days ago

    This does not present as HVX on Blue Angel. I think you can breathe easy.