Nicotiana - virus or some kind of deficiency
getgoing100_7b_nj
last year
A couple of my Nicotiana Alata plants are showing yellow ish patches and then I found this striped beetle on a not deceased looking Nicotiana plant. So, is it a viral infection? If so, should I be pulling and destroying the couple of infected plants. I have dozens of them tucked in every corner and yet to see a single bloom. It would be a shame if ....
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getgoing100_7b_nj
last yearRelated Discussions
you experiences with Nicotiana please
Comments (16)i don't kill any that have the white rice pupal sacs on them, but they are the only ones i spare. the big buggers that are eating go because they do too much damage too fast. i see a good many with the wasp larvae, so the balance must be ok. i know there's a zillion different hornworms. the biggest we ever found was on the sunflower, and it was about 7 or 8" long couple yrs ago. we kept it to let it pupate, but it died. ditto an interestingly patterned one we found last fall. that one started to pupate, but eventually died. it had a markedly different pattern, but still had the horn & body form of the hornworms. no idea what he was eating- we found it wandering on the ground, probably to pupate. i think the clearwings are in the same family as the hornworms (but my kids messed up my butterfly/moth book so i can't look it up to verify). they are amazing to watch. i saw one of those before i ever saw a hummer as a kid and was sure it was one! at our fair plot last year we had the pleasure of watching a newly hatched sphinx moth supping on our datura flowers. it was amazing. he was still so new he let the kids handle him. it was chilly and i think that slowed down his metabolism a lot, too. dana, try to pick up a good sized one and it will throw it's head back and forth and click and squeal. often they make the most noise when they are hanging on for dear life to whatever you are trying to pull them off of. our turtles will eat some cabbage worms, but not tons. i guess they get tired of the taste. i'd heard that about shrooms, but haven't worked up the nerve to offer them anything i know isn't edible. so far they've turned up their beaks. boogers. they think worms and mealworms come from the sky, since the kids drop them in front of them (they startle if a hand appears). it almost looks as though they are begging when they're hungry. another bug that makes noise is the betsy beetle /bess bugs/patent leather bugs- they squeak. they look fierce but are harmless and the kids love them....See MoreDoes anyone know anything about tobacco mosaic virus
Comments (3)I know a small amount about TMV, and I know just enough about it to say that if I were you, I'd go ahead and plant the tobacco although not terribly close (I'll explain why in a second) to the tomatoes or peppers or, if you have them, petunias or ground cherries. Maybe not close to eggplant either. Nowadays, most hybrid tomatoes have some degree of resistance to TMV. In fact, TMV generally is not a problem for the average home gardener and hasn't been in quite some time. Nowadays, TMV is largely an issue in large commercial tomato-growing operations where it generally is spead by mechanical means. They no longer think it is necessarily spread as widely by insects as once believed. Regarding the cigarette connection, it depends on the source of tobacco in your cigarettes. For about the last 20 to 25 years or so, tobacco grown in the USA is TMV-tolerant. However, Turkish tobacco is not. Now, about the plants susceptible to TMV infection: there are a lot of them! Many of us grow a lot of plants that can become infected with TMV, although that doesn't necessarily mean they will. Among the plants that can serve as hosts for TMV are tomatoes, peppers, eggplant, petunias, marigolds, snapdragons, and delphiniums. There is also a somewhat lower risk that the following can contract TMV: impatiens, ground cherries, zinnias, phlox, cucurbits like squash, melons and cucumbers, and the whole nightshade family, including daturas like jimsonweed (angel's trumpets). For what it is worth, I grow all kinds of TMV-susceptible plants and I bet I haven't seen 5 cases of TMV in my garden in all the years I've been gardening. Among the plants I commonly grow are several types of nicotianas in my moon garden. Nicotianas are commonly called 'flowering tobacco'. I've never had them show any symptoms of TMV. My brother smokes and that includes smoking while working in his garden and I've never seen TMV on any of his plants either. Earlier, I suggested that if you plant tobacco, you plant it some distance away from your tomatoes and other susceptible plants. The reason for that suggestion is that tobacco hornworms may be attracted to the tobacco plants, and since tomato hornworms already are an issue, why double your trouble by attracting tobacco hornworms too? Now, Cucumber Mosaic Virus is a whole different issue, and there's a Pepper Mosaic Virus too, I think. Cucumber Mosaic Virus is widespead and it is spread by insects, so once it appears in your garden, it can become widespread. I generally don't see it often here, but some folks see it often, maybe even every single year. I believe that often CMV is misdiagnosed as TMV by home gardeners. I think often it takes a plant pathologist to be able to distinguish between the two. Jay may be able to tell you more. I think in his area he may see some CMV and TMV, if not on his plants, then on other folks' plants. Finally, for what it is worth, I have grown tobacco and found it to be a very coarse and ugly plant. And, just to be evil and perverse, I planted it right next to a row of tomato plants. The nearest tomato plant was maybe 3' from it and neither one of them had any disease issues. I didn't think the tobacco was nearly as pleasing in appearance as the nicotianas. Dawn...See MoreRose Mosiac Virus @ K&M Roses
Comments (12)Frank- No, you don't have to start all over. What variety did you get from Mr. Mills, if you don't mind me asking? Not everything I've ordered has been infected, so you might be ok. Even if, by chance, the one you ordered does have it, it shouldn't be a problem for you as far as the disease spreading. I just read an article published on the ARS by Malcom Manners stating that the only way of transmission is through grafting. Some people go to the extreme and dig the plant up and burn it. I don't see any point in this as I've never had it spread from one rose to another. The biggest problem for me is that they just don't grow like a normal rose. Much less vigor, flower size distortion, color distortion, and winter tenderness. Also very hard to exhibit an RMV rose unless it isn't showing. Even then you run the risk of someone taking your rose home from the show to root it. My advice: keep it until you find a clean version of it. It may still throw off some nice flowers and grow ok for you. Then again, it may be lackluster. Either way though, DON"T start over! Good luck with your new rose garden!! Kentucky Rose- Yea, the roses had it upon arrival. I didn't plant them in the ground. I ended up planting them in pots until I can get replacements for them. I didn't want to take up good spots in the ground for sick plants so I just potted them up. They are growing, just slower than the rest. I have exhibited a rose with RMV one time. I actually won Princess with her at the Tenarky Districts last year, in fact. The Variety is Bugatti (do not buy it from Mr. Mills!) and it's one of the few that doesn't seem to show symptoms much. But, like I said before, it just generally lacked vigor and I was always wondering how much better she really should be. Just seems kind of pointless to me. I had thought about just paying Mr. Mills and being done with him but the more I thought about it the more it angered me. How many people does he get this over on and how many people just say to hell with it and just pay him? Not doing it this time. Last time I gave him nearly 550 dollars just to have roses I already paid for show symptoms halfway through the season. Half the first ordered showed immediately, and the other half started showing up throughout the summer. I decided he wasn't taking me to the cleaners this time around....See MoreIs this some nutritional deficiency
Comments (23)zack_lau, most rose virus literature do not consider RMV as the name of an actual virus. It is usually considered a group name (However, the Consulting Rosarian Manual linked to below states RMV is PNRSV). Did you identify which actual rose virus(es) that you have that you felt were not transferred by pruning? Are you sure that the virus illustrated by madri-gw is the same as your virus(es) (and of the same virulence)? Also, how do you know that all of your roses have the same immune systen effectiveness as your minuatures and the rose of madri-gw. Will the immune systems be as effective in madri-gw zone 5 roses as in your zone 6 roses? The last revision of the American Rose Consulting Rosarian manual is 2014. It can be observed at : http://www.rose.org/wp-content/uploads/2010/03/CR-MANUAL-REVISED-5-2014-FINAL1.pdf The rose viruses are discussed on page 108, 110, and 112. See page 112 for what the Manual states about sterilizing pruners. ------------------------------------------------------------------------------ Hopefully, the newly federally funded National Clean Plant Network-Roses program will be able to clarify what is known about rose viruses. https://indplsrosesoc.files.wordpress.com/2016/03/twin-cities-rose-club-march-2016-special-edition-article-national-clean-plant-network-roses.pdf...See Moregetgoing100_7b_nj
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