Report from NC State Plant Disease and Insect Clinic
You may remember the picture I posted recently with concerns about a bullseye pattern that is all over my Elvis Lives. My concern was that I might have a virus of some sort going on. I took some of the leaves to the lab at NCSU for further inspection and testing. Additionally, I took some insects and the mess they were making for identification. Unfortunately, I am going to need to dig Elvis Lives up and dispose of it. They were not successful in identifying which virus I am dealing with, but they do believe that it is viral. Fortunately, none of the other hostas in this area (or anywhere in my garden, for that matter) are exhibiting this issue.
Here is what the report I got back says:
The ringspot symptom appears to be viral. We did not detect INSV, TSWV,TRSV or HVX with the available tests in our lab. There was not fungus or bacteria present. So, since we consider this a virus, based on symptoms, you should remove the plant if practical. It is difficult to assess the risk of it spreading to other hostas In the planting.
Comments (19)
lavendargrrl
9 years agoBabka NorCal 9b
9 years agoRelated Discussions
insect, black spot , and disease control
Comments (23)The following was stated: "This is from the New England Rose Society. If you click on the link it is for their 'expert advice on rose care'. The first recommendation for Powdery Mildew and Blackspot is Bayer Advanced Disease control." The complete paragraph for blackspot is: "Blackspot: Bayer Advanced Disease Control for Roses, Â, alternating with Daconil. Some use Banner Maxx. Baking Soda and Neem reported, also Immunox by some. Some use Banner Maxx and Mancozeb alternating with Compass and Mancozeb every two weeks. Green Cure also used. Some use good garden hygiene ONLY." ------------------------------------------------- H. Kuska comment. Notice: "Some use good garden hygiene ONLY." and Baking Soda and Neem and Green Cure. This was the report of 37 American Rose Society Consulting Rosarians. I am not surprised since I have been in various Rose positions since the 70s (including at one period editor of the Akron Rose Rambler, a 200 plus monthly 12 page newsletter with international subscriptions). i.e. I have had enough experience in dealing with other rose growers to know that it is safe to make the statement: "My point is that one may be able to get along with a safer spray or even no spray at all. To find out they have to talk to rose growers in their own area."...See MoreFL citrus industry battles potent foe: a disease with no cure
Comments (16)Arrktrees, just like all apples are Malus domestica, all bananas are the same Musa species. (Not including one edible species grown only in the South Pacific). Just like you can have Golden Delicious, Granny Smith and Rome apples, you have small pink bananas, big white ones and plantains all from basically the same genome. In my parent's day, the variety was called Gros Michele, "Big Mike". The last load was imported into the U.S. in 1962, but the dying of bananas had been on-going and had inspired the song "Yes, we have no bananas". Since then, almost all dessert bananas are Cavendish. The reason is a disease that wiped out almost all Gros Michele. The reason for the quintessentially British name Cavendish is that when looking for a banana tree that was immune to the fungal disease, one was found in the greenhouses of Lord Cavendish. This single clone is that basis for the whole dessert banana trade. Now, there is a new threat, another fungus. The industry has already moved from countries like Honduras to Ecuador, the new #1 source of bananas to the US. The fungus has infected trees in South China, and recently was found in Queensland, Australia. When it comes to the New World, you will read it in the mainstream media. While you and I may think of bananas as an accessory to breakfast, places like Uganda and that region use bananas like we do potatoes, wheat and rice. This variety, a plantain type, is also killed by the new fungus. When it ravages East Africa, you can imagine what will happen when it hits there, imagine taking everything with rice, wheat or potato off your menu. Anyways, there is a process going on to try to find a resistant banana. Every banana is an ancient seedless (natural?) hybrid. However, have you ever noticed small brown specks at the blossom end of a banana? Those are vestigial seeds. For every about 100 thousand bananas, one will have seeds that can be made to grow. For every 1000 ones that grow, one will make it to maturity. For this reason, the Country of Honduras has a project where bananas are mashed through a sieve to recover those 'seeds'. They are sent to the U. of Louvain in Belgium where they do the growing. As they get plants, they multiply them and give them to people in India, Africa, South America etc. It is hoped on of these will show resistance to the new fungus. I'll stop this long post, there is so much more to say. For more info, look for info on Tropical Race Four....See MoreReport: Black Walnut Rose Plantings
Comments (28)I have had the same issue with the native pecan trees, in Texas. The oak leaf hydrangea lasted three years. I love roses, but haven't tried them, yet. I didn't want liriope, but it moved in, and is doing quite well, much to my chagrin. But I have a thing about removing living things, so there they are! 😀 I've experimented with several native plants, and have found that yaupon, Turk's cap, (aka Mexican apple) does well, as do Christmas fern, St. John's wort, and artemisia. Daffodils, lily of the valley, and bearded iris have survived thirty years, with absolutely no help, as have the rosemary bushes. Oak trees, redbuds, and Eve's necklace have been next to the pecan trees, for thirty, to fifty years. Sadly, the mints, bee balm, and lemon balm only made it two years. On the upside, I've seen non-natives that have survived at least twenty-five years, such as Japanese boxwoods, nandinas, and ligustrums. The gardenia bush died within three months, even though I pampered it. Juglone is a real bugger, but the pecan tree is our state tree, the birds love them, and they provide a squirrel circus that is often hilarious! Loved your article, Hawkeye_Belle! I love roses so much, and I've spent thirty years wondering whether my pecan trees would do them in. You've provided some excellent information!...See Moredisease resistant apples vs. insects
Comments (43)OK, correction; the apples on the branch are NOT King David, but Lady Williams (that's what happens when the Belgian Fence makes tracing the branch to the tag difficult). The King David in the hand are indeed runts, but excellent-tasting runts. I picked the Lady Williams today, also very nice, very marketable, but nothing close to King David. KD is still very firm when ripe, but in a pleasant sort of way, very sweet, with a distinctly winey taste, hints of Welch's grape juice, but also very spicy, appley, sweet-tart, matching the color. KD doesn't keep nearly like Arkansas Black unfortunately, but Lady Williams is reported to keep well and improve in ordinary storage, a plus where there is no refrigeration....See Morelavendargrrl
9 years agoUser
9 years agoirawon
9 years agolavendargrrl
9 years agoSteve, thanks so much for the information. Where would I purchase Zerotol? I am going to take care of this situation this weekend. I have never had anything like this to deal with, and I will be very careful and dig out as much of the surrounding soil as I can, too. I will not plant anything here this year for sure, and probably not next year either.
This makes me so sad because I really loved this hosta. I have attached a photo of he whole plant, which is a decent size.
I will check out the link you shared now. Thanks again!
lavendargrrl
9 years agolavendargrrl
9 years agolavendargrrl
9 years agoken_adrian Adrian MI cold Z5
9 years agolavendargrrl
9 years agoHi Ken, I do know Bob as I used to be in the local Hosta Society here and so was he. Great idea to reach out to him. He is located about an hour from me.
I think the report I got back was referring to 2 different planthopper nymphs, actually. The flatids are the ones I had, and they create the waxy substance that was on my scapes. The acanaloniid does not create the wax. Maybe I am confused? What I got after rereading their notes was references to multiple insects. I added a picture of the waxy substance for reference.
"The samples contained several insects/arthropods. The most numerous (several specimens) were flatid planthopper nymphs (Flatidae). These create the large amounts of wax seen on the plant stems. The acanaloniid planthopper nymph is free-living and does not create the wax on the plant. There was also an unidentified pupal skin of a small moth (looks as though it did some feeding damage before pupating) and some silk with spider parts inside."
I'm sure nobody is suggesting that I can completely eradicate the bad nematodes in my soil, but maybe the specific type that was a carrier for this unidentified virus will be reduced in that area enough so I can replant there in a couple of years. This hosta bed is an established bed, and Elvis Lives has been in that spot for at least 7 years, and possibly 8 years. The other hostas close by also have been there for a long time. I hope to reduce the chances of that virus spreading to my other plants.
lavendargrrl
9 years agoBabka NorCal 9b
9 years agolavendargrrl
9 years agobrucebanyaihsta
9 years ago
zkathy z7a NC
9 years agoI have those flatid plant hoppers in my garden, too. They make that woolly looking stuff on the scrapes. But I also have this h. Patriot in my yard. I'll post two pics. One of the Patriot, the other of the bed it's in.
Kathy
zkathy z7a NC
9 years agoHere's the bed. Sorry for the fuzzy picture. This Patriot got a hasty planting into that hole last fall after being dug up from someplace in the yard. It looked fine this spring. It is one of the Lowe's hostas and the bed is in the quarantine area of the yard. It tested negative for HVX with an Agdia strip when I got it last fall.
I don't think the watering to that bed has been even and I first took this to be lack of water stress. I don't think that's all there is too it. Any ideas?
Kathy
Babka NorCal 9b
9 years ago
Steve Massachusetts