Virus Management: Know it
cicivacation
7 years ago
What virus signs are you looking for?
Stunted growth even when there is space to grow, twisted leaves, yellow
margin following veins, circular spots or a 'V' of lightened leaf tissue
along the main vein near the stem. Here are some images with clear virus sign:
Check this link out for more
examples:http://www.dahlia.org/uploads/images/DIYpdfs/VirusBrochureJune2015.pdf
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eczekalski
7 years agowallace23
7 years agoRelated Discussions
tomatoes with Mosaic virus/tobacco virus
Comments (10)I disagree... herbicide damage rarely causes spots on the leaves, and the yellowing tends to be a general overall thing (especially on the growing tips), not mottled. It's always easier to figure out with a picture, but a virus is possible. TMV is, indeed, almost nonexistent outside of labs in the US. Cucumber Mosaic Virus, on the other hand, is out there, and may be more common than you think (many Heavenly Bamboo plants carry it; the resulting red color is considered desirable). There is also Tomato Spotted Wilt Virus, which is rampant in many parts of the country. Both CMV and TSWV are vectored by insects; they are the major viruses we usually run into in tomato plants. They can strike individual plants, leaving neighbors alone. If you're dealing with an herbicide, the effects will show up on neighboring plants which are close to each other and sharing the bed, or different species of plants that share the same soil/exposure, like squash or peppers (but not necessarily every kind of vegetable). The plants might pull out of a light exposure once the source of herbicide is removed; the best sign is when they start to grow again. Badly herbicide-damaged or virus-infected plants will stop growing or slow to a crawl, and will never start again. Am I stuck with never using this soil for tomatoes again? No. Any virus you are likely to encounter in tomatoes doesn't persist in the soil. If your soil is contaminated with herbicide (and I can't imagine how you would manage that with Mel's Mix, unless the compost part was badly contaminated) then you will have to get rid of it, but not if the herbicide drifted over from elsewhere. How badly will my harvest suffer? Virus-infected plants will not bear, or will bear misshapen and often bad-tasting fruit. Since you're not likely to get any good fruit out of these plants once the virus is well established, you'll have fewer plants to harvest from. If herbicide-damaged plants recover, they will be set back by at least a few weeks, but the fruit you get after that should be fine. Is moving the plants to a different part of my back yard sufficient, or do I need to destroy them? If it's a virus, you need to pull them. CMV and TSWV are transmitted by insects which can fly, and infected plants can serve as a reservoir for insects to infect your currently healthy plants. (Besides, they won't fruit well, so why keep them?) If it's herbicide damage... well, if the soil isn't the problem, and there's no new drift from elsewhere, then there's no real point to moving them. Either they'll pull out or they won't. How likely is it that all my tomato plants are infected? I have around a dozen plants and hate to think that I need to destroy them all. I've gotten a few virus-infected plants over the years; once I confirm that it's a virus rather than some quirk of weather or genetics, I pull the (usually single) plant and look for the same symptoms on other plants. Out of three years I've had a virus problem, I've had to pull four plants total, and I grow over 15 plants a year. So keep your eyes peeled, and if you're lucky, it might turn out to be just a couple. They're all growing well. Now this is what confuses me. Is it just the normal-looking plants that are growing well? If so, cross your fingers and leave them be. If the shoestring-leaf ferny plants are also growing "well", as in vigorous and putting out lots of new growth, digdirt may be onto something with his herbicide theory. Here's a few pics to help out: Cucumber Mosaic Virus Tomato Spotted Wilt Virus --Alison...See MoreInteresting article @ virus ( I know you all hate this subject)
Comments (1)Interesting article. Wouldn't it be neat if they found something like a 'flu' shot for virus... Jane...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 MoreVirus software says I have a virus what to do?
Comments (8)if it put it in quarantine you should be ok, most antivirus programs allow you to go to the chest and from there select delete. I would also run these 2 free programs to make sure you do not have anything else. SUPERAntiSpyware Malwarebytes' Anti-Malware download Malwarebytes' Anti-Malware to your desktop. * Double-click mbam-setup.exe and follow the prompts to install the program. * At the end, be sure a checkmark is placed next to Update Malwarebytes' Anti-Malware and Launch Malwarebytes' Anti-Malware, then click Finish. * If an update is found, it will download and install the latest version. * Once the program has loaded, select Perform full scan, then click Scan. * When the scan is complete, click OK, then Show Results to view the results. * Be sure that everything is checked, and click Remove Selected. Install them, update them then do the scans and let them clean up what they find. Also I would go and run this online scan too. FREE Online Virus Scan...See Moreeczekalski
7 years agoeczekalski
7 years agocicivacation
7 years ago
Rachel Cross- Harder
6 years agoRachel Cross- Harder
6 years ago
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