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Central Illinois

What is this ? Its on the 451 weible and is only on one vine ,the older leaves get it first, should this be removed from the patch

http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=245192

8/9/2015 10:11:51 AM

France

I really hope to be wrong but it looks like Mosaic virus.
Check a recent topic about that disease.

8/9/2015 11:01:20 AM

Central Illinois

If thats the case here is a good read, i think I have had this for 3 years, but only on a few leaves each year.

http://www.bigpumpkins.com/MsgBoard/ViewThread.asp?b=3&p=544162

8/9/2015 11:51:02 AM

Williamsburg,KY

Contact your local cooperative extension office of your county. They can identify it for sure. And probably at no cost.

8/9/2015 2:18:33 PM

Central Illinois

All votes so far say Mosaic virus,just had 6 hours of rain so I am going out and cutting it off.

8/9/2015 3:39:53 PM

JACKSON, WISCONSIN. ; )

Yank it mosaic for sure I've lost 6 to it this year.. Get some mustard in and growing... Wow has it for sale

8/9/2015 10:07:22 PM

Connecticut

I am going to speak from experience and say that you have a Mosaic Virus. Seeing that the other vine in the picture appears clean you may be able to just remove the infected one and then wash your hands in milk. (Yes, milk can stop the spread of virus.)

If you think you have had it for the last three years it may be worth getting a virus screen to determine what type of mosaic virus you have so that you can develop a plan to target the most likely cause for the problem.

I know this can be very frustrating, but there are things you may be able to do to lessen the chance you get the virus next year.

8/9/2015 10:11:01 PM

Central Illinois

Its my best pumpkin so I wont pull the plant,I did remove the vine and burned it.I went past the infected area into some good looking leaves and then cut it off there.

(thanks Matt)I read in one of your previous statements that pokeweed is a common carrier of the virus, we have plenty of those around and it would be impossible to eliminate them due to the farm fields. I dont think I have anything left to get a test from,if one leaf gets infected does the virus travel down the vine in both directions, seems like it went down towards the tip

8/10/2015 7:46:51 AM

Central NY

Is it possible that the virus stays in the seed?.. Got some funky leaves at the ends of a few vines that just showed up.. Also the 451.....

8/10/2015 8:38:53 AM

JACKSON, WISCONSIN. ; )

Yes but very small chances. Mostly from bugs. I am doing a full screening to find ways on limiting exposure to it for the future in hopes I can help a few other growers in the area so we don't transmit it around.. Bleach doesn't kill mosaic or so I was told. I'm sure I spread it in my patch this year once the first plants had it.. I was on a bleach cleaning spree didn't use milk or a soapy solution to kill the Dna of mosaic. Always next year.

8/10/2015 9:07:26 AM

Connecticut

baitman- The most common progression would be from older leaves to newer leaves if there is only one main point of infection. Often times there are multiple points that can make it seem as if the virus is spreading in all directions (which it can eventually do). Hopefully, you will not have any more leaves show symptoms, but if they do then a virus screen would be advised. Link: http://www.agdia.com/testing-services/Cucurbit-Cucumber--Melon.cfm

Porkchop- Here is a link to a previous discussion that should help answer the virus and seed probability. Let's just say the odds are very slim. Link: http://www.bigpumpkins.com/MsgBoard/ViewThread.asp?b=6&p=513619

Big City Grower- What I think makes virus so difficult is the fact that you can not really kill them because they are not really alive. Virus is a nucleotide wrapped in a protein shell, they do not have any real living internal organelles to replicate and need a living host to do so. The milk works more by simply binding to the outer shell to prevent them from attaching to a living host and bleach can work also by simply creating a very harsh environment that will denature the virus but may not be the best option in some cases.
Link: http://apsjournals.apsnet.org/doi/abs/10.1094/PDIS-94-5-0542

So far I am still virus free this year and I think my three part system is the reason...
http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=241198
http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=241402
http://www.bigpumpkins.com/Diary/DiaryViewOne.asp?eid=241403

Hope this helps and does not add more confusion.

8/10/2015 10:53:44 PM