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Banana Plant Health And Maintenance Topics This forum is for discussions of banana plant health topics such as coloration issues, burning, insects, pruning, transplanting, separating pups, viruses, disease, and other general banana plant health and maintenance issues.


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Old 07-23-2011, 04:34 PM   #1 (permalink)
 
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Default Is this true and typical BSV?

Hello,

As some of you may remember,after the winter,my Ice Cream grew 2 leaf and then ceased growth. At some point later it produced two pups and when these grew 2 leafs,the first of the 2 leaf produced by the mother plant this year,began getting black ''burns'' that ended up as black stripes along the leaf veins,some of which were clearly just between 2 leaf veins. Then,suddenly,both pups produced a leaf with well defined patterning on the leaf veins consisting of darker and lighter colored ''squares'' on each individual leaf vein. One of the leafs even got some necrotic spots along the leaf veins. All these seem too suspicious and like BSV for some reason got activated. What do you think? Here are some photos taken today:

Whole mat


Bigger pup's leafs














Smaller pup's leafs










Motherplant






Does the above plant has BSV as the symptoms seem to indicate to me at least? I would really appreciate your help!

Thank you very much in advance!
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Old 09-02-2011, 11:07 AM   #2 (permalink)
 
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Default Re: Is this true and typical BSV?

Hello,

I thought i would update this thread in case it helps determine what my Ice Cream has. Well,after all these months,my Ice Cream is pretty much the same,with the pups having grown a single leaf each at best and the leafs not looking right. The motherplant has now died to the ground. Here are some leaf close ups from today. Both pups have the same pattern on their leafs and both look sickly and grow extremely slow.










What does my Ice Cream has? Is it a disease?

Thank you very much in advance!
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Old 09-02-2011, 12:27 PM   #3 (permalink)
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Default Re: Is this true and typical BSV?

It does not look like BSV, and normally ABB bananas (or any banana with 2 or more M. balbisiana chromosome sets) do not show BSV symptoms.

'Mysore' with BSV symptoms.


'Obino l'Ewa' (right) with BSV symptoms.
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Old 09-02-2011, 12:41 PM   #4 (permalink)
 
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Default Re: Is this true and typical BSV?

Thank you very much for your reply Gabe!

What makes my Ice Cream look so sickly and grow soooo slowly then?

What are the symptoms the above bananas are expressing which indicate BSV?

Thank you very much in advance!
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Old 09-02-2011, 12:46 PM   #5 (permalink)
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Default Re: Is this true and typical BSV?

I'd say your ice cream banana doesn't like its' soil conditions. Either the soil is compacted, too poor, or not well draining. Is it in a lot of clay? or a place close to the house where maybe some construction equipment would have been driven through there and destroyed the air spaces in the soil.
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Old 09-02-2011, 04:34 PM   #6 (permalink)
 
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Default Re: Is this true and typical BSV?

Thank you very much for your reply Sandy!

My Ice Cream was planted last year on May on a mound of peat based cactus soil which supposedly is well draining,over a base of clay soil,which is what the soil of my garden basically is. It certainly does not suffer from overwatering,it may actually be a little underwatered but dont know. I have increased its watering a few days now and we will see but i was more thinking of it as ill than unhappy. I have fertilized it very well,both in spring and early summer and it didnt respond to it. If disease can certainly be ruled out,i will try babying it some more as i had somewhat neglected it after the strange looking leafs it put out and its extremely slow growth....

Thank you very much in advance!
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Old 10-11-2011, 05:41 AM   #7 (permalink)
 
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Default Re: Is this true and typical BSV?

Hello,

I have a suspicious looking Mysore i would like your opinion about. It grew normal looking leafs at first after establishing but then it grew a leaf with lighter/yellow colored stripes parallel to the leaf veins and has since been producing leafs like that,with varying amount of striping. The last leaf seems mostly normal but anyway,i would really like your opinion on wether this is BSV,another disease or just cultural that will go away.
Here are the pictures:















Thank you very much in advance!
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Old 10-31-2011, 11:46 AM   #8 (permalink)
 
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Default Re: Is this true and typical BSV?

Please,have a look and let me know what the problem with the above banana(Mysore) is. I will soon have to move it to my basement for overrwintering and need to know if thats a virus or not. I wouldn't like risking my other bananas. Also,if thats a virus,I will need to search for a healthy replacement and need to know that.

I really appreciate your expert help!

Thank you very much in advance!
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Old 10-31-2011, 12:11 PM   #9 (permalink)
 
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Default Re: Is this true and typical BSV?

Quote:
Originally Posted by Kostas View Post
Hello,

I have a suspicious looking Mysore i would like your opinion about. It grew normal looking leafs at first after establishing but then it grew a leaf with lighter/yellow colored stripes parallel to the leaf veins and has since been producing leafs like that,with varying amount of striping. The last leaf seems mostly normal but anyway,i would really like your opinion on wether this is BSV,another disease or just cultural that will go away.
Here are the pictures:















Thank you very much in advance!
Do you have any more pix
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Old 10-31-2011, 12:26 PM   #10 (permalink)
 
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Default Re: Is this true and typical BSV?

Sorry for including them all but none was clear enough to demonstrate the problem well and hoped that with many to look at,you would be able to see all the details there are to see and help with diagnosis
Seriously now,I have no more pictures and this banana only grew one more leaf with a good part of it necrotic,probably due to cool or even cold weather prevailing a week or two ago.
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Old 10-31-2011, 12:29 PM   #11 (permalink)
 
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Default Re: Is this true and typical BSV?

Quote:
Originally Posted by Kostas View Post
Sorry for including them all but none was clear enough to demonstrate the problem well and hoped that with many to look at,you would be able to see all the details there are to see and help with diagnosis
Seriously now,I have no more pictures and this banana only grew one more leaf with a good part of it necrotic,probably due to cool or even cold weather prevailing a week or two ago.
Just kiddin ya!
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Old 11-01-2011, 01:11 PM   #12 (permalink)
 
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Default Re: Is this true and typical BSV?

Looks like Banana Streak Virus to me, but I am no expert. I've read that most Mysore accessions have the virus. Pisang Ceylon is one that does not. I have 4 Mysore group plants: Pisang Ceylon, Pisang Klotek, Mysore, and something obtained as FHIA 2 (Mona Lisa) but which is clearly a Mysore of some sort. The first two have no streaking, the second two have streaking as bad or worse than what you have. The ones without streaking have been growing faster for me than the two with streaking. I don't think the BSV virus can be spread in my environment, but I will probably get rid of the two Mysores with the streaks, if for no other reason than they aren't as hardy as the two without the streaks. I'm sure yours will be fine, but if you can get a Pisang Ceylon, it'll probably be hardier.
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Old 11-01-2011, 01:52 PM   #13 (permalink)
 
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Default Re: Is this true and typical BSV?

No problem Tony!

Thank you very much for your reply Mark!
Mine grows at an ok pace,i cant say its much slower if at all so far.
I do have Pisang Ceylon and Pisang Klotek as well and love them both! I really like Mysore group cultivars and so i would like to have as many of this group as possible,including a healthy ''Mysore''. If what mine has is indeed BSV,i will have to search for a healthy replacement unfortunately...

Does anyone have or has seen a totally healthy Mysore mat?
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Old 11-01-2011, 02:04 PM   #14 (permalink)
 
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Default Re: Is this true and typical BSV?

Quote:
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No problem Tony!

Thank you very much for your reply Mark!
Mine grows at an ok pace,i cant say its much slower if at all so far.
I do have Pisang Ceylon and Pisang Klotek as well and love them both! I really like Mysore group cultivars and so i would like to have as many of this group as possible,including a healthy ''Mysore''. If what mine has is indeed BSV,i will have to search for a healthy replacement unfortunately...

Does anyone have or has seen a totally healthy Mysore mat?
Yes
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Old 11-01-2011, 02:12 PM   #15 (permalink)
 
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Hiya Re: Is this true and typical BSV?

Well maybe not perfect but pretty darn close.




http://i950.photobucket.com/albums/a...mwah/004-4.jpg

http://i950.photobucket.com/albums/a...mwah/003-7.jpg
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Old 11-01-2011, 02:55 PM   #16 (permalink)
 
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Default Re: Is this true and typical BSV?

My understanding is that Pisang Ceylon is just Mysore without BSV. So you already have your replacement. The fruit aren't supposed to be any different, from what I understand.

I have seen mats of Mysore that had no evidence of BSV. Possibly because the were the Pisang Ceylon clone of Mysore or because they were in low-stress conditions that don't elicit expression of BSV.
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Old 11-01-2011, 04:47 PM   #17 (permalink)
 
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Default Re: Is this true and typical BSV?

Thank you very much for your replies Tony and Mark!

Tony,
Even this plants does have the stripes,just less pronounced and broken instead of continuous. I dont know wether this is BSV or not,but BSV is said to cause continuous pr broken chlorotic stripes parallel to the veins so it falls within the descriptions i have read. I dont know the exact diagnostic criteria though.

Mark,
Do you have any paper on this subject? I would love to learn more!
I know Pisang Ceylon is ''improved Mysore'' but it doesnt mention in what it is improved. I would think its a different cultivar with ''improved'' fruiting qualities or wind/disease resistance. If thats the case and its not just BSV free,i would still like to get the true Mysore.
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Old 11-01-2011, 05:35 PM   #18 (permalink)
 
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Default Re: Is this true and typical BSV?

This plant was grown from a Tc ,flowered and fruited and sent up many pups.If it is bsv seems to have no effect .

http://www.google.com/url?sa=t&rct=j...6pLRZA&cad=rja
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Old 11-01-2011, 06:17 PM   #19 (permalink)
 
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Default Re: Is this true and typical BSV?

Thank you very much for the link Tony! Very useful!

From what the link says,BSV doesnt affect Mysore much and it doesnt significantly reduce yield or vigor,just expresses mild symptoms of chlorotic streaking/mosaic. I dont know if what yours or mine has is BSV though as they dont show any necrotic streaks and the streaks arent that much chlorotic,just lighter in color. It still may be BSV though. I think we definitely need an expert opinion on the subject to clear things up and know what BSV is and isnt!
A good diagnostic guide showing all variations of the disease would also help some but i havent found any.
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Old 11-01-2011, 06:31 PM   #20 (permalink)
 
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Default Re: Is this true and typical BSV?

http://www.google.com/url?sa=t&rct=j...rs2y-A&cad=rja
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