non-aroid question

From: Lester Kallus lkallus at earthlink.net> on 2000.08.19 at 06:43:43(5293) A friend of mine asked for help identifying the disease on some of his plants. (OK, all you folks from down south, I now expect a round of "why do you bother with those, we throw them away") He brought home a few water hyacinths. They were supposedly doing perfectly fine in the pond from which he got them. He says that within just a couple days, the leaves began to turn white and all growth stopped. Here's a photo of the dwindling plants: http://home.att.net/~schale/bitmaps/hyac.jpg +More Given the variegation (especially that on the two-tone leaf), I thought this might be a virus. Does anyone out there have any other ideas? Thanks, Les

From: Don Martinson llmen at execpc.com> on 2000.08.20 at 06:26:05(5294) >A friend of mine asked for help identifying the disease on some of >his ... water hyacinths. They were supposedly doing perfectly fine >in the pond from which he got them. He says that within just a >couple days, the leaves began to turn white and all growth stopped. > >Here's a photo of the dwindling plants: >http://home.att.net/~schale/bitmaps/hyac.jpg > >Given the variegation (especially that on the two-tone leaf), I >thought this might be a virus. Does anyone out there have any other >ideas? > >Thanks, > Les Hmmmm.... I note that in the photo, they are apparently growing in some rapidly moving water, which is not where you generally find them. I also note the elongated petiole on the older leaves, suggesting they might have been grown in different light levels. Still, the variegation suggests the possibility of a virus. If so, hurry up and patent it so you can sell it as a biological control! -- Don Martinson +More Milwaukee, Wisconsin Mailto:llmen@execpc.com

From: "D.J. Leedy" djleedy at netex.quik.com> on 2000.08.20 at 06:26:49(5295) I have no idea what it is, but if it will kill off water hyacinth, we could use some of it on our fishing lakes here in Texas. David Leedy +More ----- Original Message ----- To: Multiple recipients of list AROID-L Sent: Saturday, August 19, 2000 1:43 AM Subject: non-aroid question > A friend of mine asked for help identifying the disease on some of his plants. (OK, all you folks from down south, I now expect a round of "why do you bother with those, we throw them away") > > He brought home a few water hyacinths. They were supposedly doing perfectly fine in the pond from which he got them. He says that within just a couple days, the leaves began to turn white and all growth stopped. > > Here's a photo of the dwindling plants: > http://home.att.net/~schale/bitmaps/hyac.jpg > > Given the variegation (especially that on the two-tone leaf), I thought this might be a virus. Does anyone out there have any other ideas? > > Thanks, > Les > > >

From: "Julius Boos" ju-bo at email.msn.com> on 2000.08.20 at 06:27:46(5297) Dear Les, Looks to ME like they are being grown under too 'stressful', unnatural conditions with not enough nutrients in the water! They do NOT grow in fountains with rushing, clear water! Try a still, warm, pond-like setting with LOTS of nitrogen in the water (from the fish wastes) in full sun or brighter light! Some folks may not realise that living plants will not tollerate any chemicals added to the fountain water to 'keep it clear'! He/she may have added chlorine tablets, which will burn the delicate roots and cause the new leaves to go 'white', then kill it. Cheers, Julius +More >>>A friend of mine asked for help identifying the disease on some of his plants. (OK, all you folks from down south, I now expect a round of "why do you bother with those, we throw them away") He brought home a few water hyacinths. They were supposedly doing perfectly fine in the pond from which he got them. He says that within just a couple days, the leaves began to turn white and all growth stopped. Here's a photo of the dwindling plants: http://home.att.net/~schale/bitmaps/hyac.jpg Given the variegation (especially that on the two-tone leaf), I thought this might be a virus. Does anyone out there have any other ideas? Thanks, Les<<<

From: Dean Sliger deanslgr at juno.com> on 2000.08.20 at 16:40:19(5298) On Sun, 20 Aug 2000 01:27:46 -0500 (CDT) "Julius Boos" writes: > Looks to ME like they are being grown under too 'stressful', +More > unnatural > conditions with not enough nutrients in the water! They do NOT > grow in > fountains with rushing, clear water. I agree. It also looks like the plants are anchored or something to keep them in that spot. Otherwise in that situation it looks like they'd just bob up and down with the waterfall. These are floating plants; if they have to be anchored to stay in place that's they're way of saying, "We'd prefer to be elsewhere." ;-) Also, I see the petioles are really long and thin, and the plants generally lanky. These are recently purchased, right? They look like plants that have been growing indoors -- such as a nursery or aquarium store -- for a while. It could just be that they're sunburned. Even water hyacinths need a period of "hardening off" when taken from indoors before being placed in full sun. Dean

From: Piabinha at aol.com on 2000.08.21 at 01:47:49(5300) In a message dated 8/20/2000 2:27:18 AM Eastern Daylight Time, djleedy@netex.quik.com writes: > I have no idea what it is, but if it will kill off water hyacinth, we could +More > use some of it on our fishing lakes here in Texas. wouldn't renting some manatees be more enviro-friendly? :-) tsuh yang chen, nyc, USA

From: mburack at mindspring.com on 2001.11.06 at 16:22:19(7744) I think I knew the answer to this question, but I cant remember for the life of me. Is anyone familiar witht the genus "Warszewiczia"? (my spelling might be off). Any info would be appreciated.

From: Marcin shagar at cyber-sport.com.pl> on 2001.11.06 at 21:02:29(7752) Hello, Warscewicz was a Polish botanist whose interest was focused mainly on orchids. There is an orchid genus Warscewiczella - possibly the one you inquired about. Hope it helps. Best regards Marcin

From: StellrJ at aol.com on 2001.11.07 at 00:36:07(7755) In a message dated Tue, 6 Nov 2001 11:22:53 AM Eastern Standard Time, mburack@mindspring.com writes: > > I think I knew the answer to this question, but I cant remember for the life of me. > > Is anyone familiar witht the genus "Warszewiczia"? (my spelling might be off). > > Any info would be appreciated. Ah, yes, Warszwiczia. Common name, Chaconia (Probably a former generic name, like Poinsettia). The national flower of Trinidad and Tobago, cultivated in both single and double forms. Also a wild tree in Trinidad's and Venezuela's forests. Jason Hernandez +More Naturalist-at-Large

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