AdotKarl

Hi everyone,

This morning I had a little scare when I noticed that the cigar leaf on one of my young dwarf bananas has developed a brown spot on it. I have encountered this on a plant once before and it ended with me having to cut the plant back to a stump, so I hope that this will not be necessary now...

Any advice on what this might be, what might have caused this and how it could be remedied?

[IMG][/IMG]

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Currently growing: Musa Sikkimensis | Musa Veinte Cohol (Hom Thong San) | Musa Namwah Kap Khao | Musa Hom Kreak | Musa Balbisiana 'Atia Black'

Paco

Not sure that I can ID what is actually causing it, but I can share my experience of something very similar recently and I only had to cut out the brown parts.

I got some browning on a new shoot about 7 weeks ago, at the beginning of our Summer here in Australia. I initially thought it might have been sun damage to a tender new leaf. When the leaf uncurled, the brown parts were translucent and lifeless. So just in case it was a fungal or bacterial rot, I cut the brown bits off. Thankfully, the leaf survived. The p-stem is now about 30 cm high with no recurrence of the brown bits.

Anyway, I hope that helps and that you won't have to cut the whole p-stem to a stump this time.

https://www.dropbox.com/s/vhya2wpuon...41.54.jpg?dl=0

https://www.dropbox.com/s/ak8qd3vzmx...49.12.jpg?dl=0

https://www.dropbox.com/s/hi7mx4y18m...53.54.jpg?dl=0

This is a pic from about 5 days ago. The leaf I cut is the lowest one on the right hand side. You can't really see the cut edges from here, but it at least shows that the leaf is still happily leafing along.
https://www.dropbox.com/s/qxfk00zv8c...23.45.jpg?dl=0

AdotKarl

Thank you for your reply, and the optimistic before/after-pics, Paco!
Not a lot of sun damage can be done by a Belgian winter, and today is the first day in quite a while on which the sun has managed to pierce through the clouds again. The spot looks neither dried out, nor clearly rotten. Perhaps maybe slightly bruised although I can't think of anything that might have caused it.

The plant sits comfortable on a south-facing window sill and there is a grow light above it that extends the length of our winter days with a few hours. All of the plants on that same sill are growing well.

If the spot grows further, I might resort to cutting the cigar leave and hope that the next one will be all right (?). If it unfurls before the spot reaches the base of the leaf, I could cut just the bad parts like you did.

Better picture:

[IMG][/IMG]

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Currently growing: Musa Sikkimensis | Musa Veinte Cohol (Hom Thong San) | Musa Namwah Kap Khao | Musa Hom Kreak | Musa Balbisiana 'Atia Black'

Paco

Sounds like a plan. Yes, I agree that the Belgian winters would not pose much of a threat sun damage-wise

Perhaps someone else here might be able to shed some light on what is going on. With the better light in your second pic, it looks even more like what I had.

Good luck!

beam2050

healthy looking plants. keep up the good work guys.

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npk of wood ash 0/1/3 to 0/3/7

npk of banana leaf ash 1.75/0.75/0.5

AdotKarl

Everything turned out fine with the leaf!

The brown spot did not grow larger nor prevented the cigar from properly unfolding.

[IMG][/IMG]

__________________
Currently growing: Musa Sikkimensis | Musa Veinte Cohol (Hom Thong San) | Musa Namwah Kap Khao | Musa Hom Kreak | Musa Balbisiana 'Atia Black'

HMelendez

Beautiful Nana plant!.....Which Nana variety it is?....


The same happened to some of my new Nana varieties.....Even I'm in South Florida, consider a sub-tropical zone/area!......It just the fluctuation of the weather, the dropping of the temperature that reflects on a new, tender leaf......The next/following leaf it should be fine!.....As the Nana plant grows, gets older, it should hold the weather much better!.....Nanas are very tough plants.....They recover quickly, fast!.....

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AdotKarl

This one is one of my Musa "Hom Kreaks", a plant I ordered in Thailand, and the plant I probably look most forward to seeing it grow up. It is supposed to stay very compact and bear sweet fruit, so perfect for keeping indoors and giving it a royal treatment

It's also the plant with the least amount of information available atm, hence my over-protectiveness

It struggled a little bit to adapt to the climate here, but now all of my hom kreaks are doing great! And like you said, the spot on this one was probably caused by some fluctuation in temperature here. The weather has been a bit weird, and due to the fire place in teh living room, the air can be pretty dry at times. What a relief!

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Currently growing: Musa Sikkimensis | Musa Veinte Cohol (Hom Thong San) | Musa Namwah Kap Khao | Musa Hom Kreak | Musa Balbisiana 'Atia Black'

Paco

Glad to see that the leaf turned out so well. It has a similar-looking spot to those that I had and the good news of course is that they did not return.