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-   -   Cucumber Mosaic Virus (w/ Pix) (http://www.tomatoville.com/showthread.php?t=9077)

Lee July 7, 2008 09:18 PM

Cucumber Mosaic Virus (w/ Pix)
 
Well, it ain't no fun when your plants get infected with disease.
But on the plus side, I get to create these handy documents with
photos showing the disease.
I hope to expand this to improve the information, but for now, I
hope the pictures are worth a thousand words for those of you needing
a diagnosis.

http://tomatopalooza.org/CMV08.htm

Here's a few links to good descriptions of how to prevent CMV and what to do if you have it.
Good news according to the Cornell site is that it doesn't persist in plant debirs, nor is it trasmitted
in the seed.

http://vegetablemdonline.ppath.corne...ses_Tomato.htm
http://www.hort.uconn.edu/ipm/veg/htms/mosvirto.htm
http://www.avrdc.org/pdf/tomato/CMV.pdf
http://www.ces.ncsu.edu/depts/pp/not...notes/vg15.htm

And here's a link to photos of the insect vectors of CMV:
http://www.cals.ncsu.edu/course/ent4...ntvectors.html

Lee

hasshoes July 9, 2009 11:27 AM

Lee--- how do you rec "pulling" plants with mosaic?


I bagged mine and cut them off at the stem. . . and am going out in a few to pour some boiling water around the roots.

Do I need to pull the roots? I'm worried about splashing the few surrounding plants that seem to be okay. They may get it anyway because my mosaic (possibly tobacco?) spread like wildfire. . . but I'll take any odds I can get. :cute:

Thanks in advance!! :0)

Lee July 9, 2009 02:15 PM

I didn't do anything special last year. Just yanked out the plants and whatever
roots came along. Since Cornell said it doesn't persist in the soil, I didn't worry
about doing more than that.

On the plus side, no CMV at all this year..... other problems, Yes, but CMV no.

Lee

hasshoes July 9, 2009 03:17 PM

Thanks Lee. . . that's good to know for next year. :0) :0) :0) Your links really helped by the way. As of today their seems to be no more spread. . . *fingers crossed*!!!!!

hasshoes July 23, 2009 01:40 PM

Lee--- were your infected plants significantly stunted or did some of them continue to grow? And flower?

I have a heart variety (in the row of an infection)- Reif Red Heart- whose top growth has been driving me nuts for a while, but it continues to grow well and has tons of flowers. The top of the plant is just SUPER wispy and small leaved as compared to the bottom leaves. . . some are upside down so I was hoping it was just stress. I've never grown an oxheart before so I'm not sure what is normal.

Here's the kicker though. . . two plants over I have a Goose Creek plant whose top leaves/stems keep curling down. . . but is growing okay (and goose creek can look like celery). . . BUT one of the tomatoes is growing pointed like a oxheart. It looks just like a giant perfect strawberry, actually.

Does this sound like what you experienced? Or can plants grow pointed because of weather?

Ugh. . . sorry to bug you. . . I'm torn!:( Super thank you in advance. :cute:

Lee July 23, 2009 01:50 PM

The pictures I had in my original post show the effects on fruit of the one
variety I let keep going. Instead of round cherry tomatoes, they became
more oval/elongated. So it did seem to effect the fruit shape for me.
However, it didn't seem to effect fruit taste or quality..... Go figure!

Lee

hasshoes July 23, 2009 02:23 PM

Were the plants stunted?

Lee July 23, 2009 02:38 PM

Hard to say, since the one I let live was pretty much at full size when it got
infected.

Lee

Vespertino May 3, 2013 06:40 PM

5 Attachment(s)
I noticed some leaf wilt on 2 of my 4 sungolds. I had been fighting an aphid infestation on a rose plant that also lives on my patio. Looking at these photos I am starting to suspect CMV. I'm wondering if I should spray all my tomato plants with insecticidal oil as a precaution. I finally have the aphid infestation under control, but I'm worried about the two infected sungolds.

Most of the upper leaves are curling inward. They look perfectly green but they feel dry, tough and rough on the outer edges. I had some dark tiny spots on some of the lower leaves (one plant in particular) but they weren't effected by the curling.

I haven't seen any insects on these plants otherwise. I definately have 2 that are infected with this wilt, another I suspect is starting to curl and one is healthy. I've isolated the healthy one from the infected ones. I'm still not sure what kind of wilt this is, or if it's certainly a wilt. I've had a lot of cold snaps over the past few weeks and they're overdue to be planted, so it's not like these plants have been stress-free. I have brought them indoors during the freezing nights, but they were outside for some of the 40+degree weather.

Any idea if this is CMV, another type of wilt, or some kind of plant stress?

Vespertino May 7, 2013 03:44 PM

Just a follow up- I think what I have is 2,4-D herbicide damage and not CMV. Some close up of the leaf crinkle/deformity seems to be a closer match with herbicide damage. I must admit that CMV and herbicide drift does look very similar.

I'm sure the apartment complex I live at probably had their groundskeepers spray some weed herbicide around, and it wafted onto a few of my plants. Either that or I ticked off the guy who parks under my patio with water runoff.


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