ID a bamboo disease

[Agrobambu]

Hi all

I'm attaching a set of pics I shot last may/31 of a clump of a bamboo (a B.multiplex A Karr I guess) in a garden of Fort Pierce,FL. It is interesting to identify because can be dangerous to the others bamboo in this area. I never saw similar before.
Bye,
Ene
Agrobambu CF&T
www.bamboofount.com.br

[soccerdude]

I don't know alot about bamboo diseases, but it looks like to be rust.

I am just taking a guess though.

[Dean W.]

Hi all

I'm attaching a set of pics I shot last may/31 of a clump of a bamboo (a B.multiplex A Karr I guess) in a garden of Fort Pierce,FL. It is interesting to identify because can be dangerous to the others bamboo in this area. I never saw similar before.
Bye,
Ene
Agrobambu CF&T
www.bamboofount.com.br

Ene, I don't think it's rust. I googled some images and it looks nothing like rust. http://pubs.caes.uga.edu/caespubs/horticulture/GrowingBamboo.htm

Regards,
Dean

[Agrobambu]

Hi Dean

I believe that it's not a rust too. I had showed this pics in all web groups here in Brazil and nobody gave me a positive information about this problem. This is the main reason that I'm worried.
Some answers received:
-A place with too much water...(No! This was planted in a well care hotel garden comparing with the others plants in the same place)
-A place with poor water...(No!)
-A place without direct sun light...(No!)
-A bad nutrition soil... (I don't know. I suppose not, but can be possible)
And many others but I think that all are conjectures.
Well, I'll continue researching. If news about I 'll notice you.
Bye,
Ene
Agrobambu CF&T
www.bamboofount.com.br

[ShmuBamboo]

Looks like a type of black spot caused by bacteria, which tends to be caused by roots that are too wet. I used to get that in my orchids. Overwatering is typically the cause. Dry them out between watering if you can. Also note that Bam. multiplex A. Karr is going into bloom now, so you will probably loose them anyway.

I have similar black spots on my Phy. vivax, and I thought that it was a disease. It turned out to be the type of vivax that has black splotches on the culms.

[bambookid524]

Alphonse Karr is beginning to flower?

[CaroleMeckes]

I did see a Bambusa multiplex 'Alphonse Karr' starting to flower at Jefferson Island, LA in Feb. 2009. It was a small shoot that was on the outside of the clump. Mine at home in Austin, TX seems just fine and has not experienced this as of this date.

re the spots and blotches on the bamboo described in this thread - I remember see similar spots in Savannah, GA at the Bamboo Coastal Gardens and found this thread (http://www.bamboocraft.net/forums/showthread.php?t=1620) that Mark posted in 2005 regarding this issue.

Carole

[bambookid524]

Oh, ok. I thought there was going to be gregarious flowering of A.K. !!! :eek:

I too have heard of sporadic flowering on single culms of that species. Apparently it doesn't really effect the clump at all really.

[ShmuBamboo]

I have read and heard from several bamboofiles that Bam. multiplex A. Karr is flowering in more places now. Entire plants, not just culms. Oregon, Florida and Texas have all had growers with A. Karr flowering. It seems that the seedlings are unstable, and that half are albinos, and half are green multiples type form. A few people have gotten baby striped leaf plants, but it is too early to tell if they will be culm striped as well. It may well be that this will be a global flowering event.

Another bamboo that is reported to be flowering now is Him. falconeri 'Damarapa', commonly known as candy cane or candy stripe bamboo. I have both A. Karr and 'Damarapa'. Neither is very cold tolerant, so I will not be that sad that to see either of them flower here.

[bambookid524]

I have read and heard from several bamboofiles that Bam. multiplex A. Karr is flowering in more places now. Entire plants, not just culms. Oregon, Florida and Texas have all had growers with A. Karr flowering. It seems that the seedlings are unstable, and that half are albinos, and half are green multiples type form. A few people have gotten baby striped leaf plants, but it is too early to tell if they will be culm striped as well. It may well be that this will be a global flowering event.

Another bamboo that is reported to be flowering now is Him. falconeri 'Damarapa', commonly known as candy cane or candy stripe bamboo. I have both A. Karr and 'Damarapa'. Neither is very cold tolerant, so I will not be that sad that to see either of them flower here.

I too, have heard that.
I have heard of the H. D. 'falconeri' flowering as well.
I haven't heard whether or not people have gotten true seedlings from the seeds though.

[ShmuBamboo]

Was at a major bamboo wholesale nursery yesterday, and saw that they had several Him. falconeri 'Damarapa' flowering and seeding up there. Mine is not blooming yet, but it has not leafed out yet either.