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#1
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Virus test results
Some of you may remember that I was stuck between 2 mentors (feeling like a
fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett |
#2
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Virus test results
Well then, the news is good and bad. Great that the original suspect is
clean. After your last thread about this, I'm sure you're not totally surprised that a few culprits turned up. Are you going to test any more? I'll be interested to see the photos. Diana "K Barrett" wrote in message . .. Some of you may remember that I was stuck between 2 mentors (feeling like a fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett |
#3
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Virus test results
KB,
The spite in me would want to take it in and rub Mr. Know-it-all's nose in it. I think you should send him the bill. Good Growing, Gene "K Barrett" wrote in message . .. Some of you may remember that I was stuck between 2 mentors (feeling like a fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett |
#4
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Virus test results
Yes the one's that I thought looked like thrip damage I'm sending in for
testing. The ones with odd blotches and veining I'm holding off. Of the 25 I sent in most had odd blotches or veins. Only 2 of those came back with virus. All the "thrip damage" spotted ones came back with virus. Which ****es me off because one of my favs has 'Thrip damage'. Over time I'm going to get the whole collection checked. It'll take a while, but hey. Its the olny way to be sure. K Barrett "Diana Kulaga" wrote in message .. . Well then, the news is good and bad. Great that the original suspect is clean. After your last thread about this, I'm sure you're not totally surprised that a few culprits turned up. Are you going to test any more? I'll be interested to see the photos. Diana "K Barrett" wrote in message . .. Some of you may remember that I was stuck between 2 mentors (feeling like a fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett |
#5
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Virus test results
Yeah, but on the other hand if he hadn't spoken up I'd still be lying to
myself about the spots in my collection. K Barrett "Gene Schurg" wrote in message news:22VRh.1777$AS6.792@trnddc04... KB, The spite in me would want to take it in and rub Mr. Know-it-all's nose in it. I think you should send him the bill. Good Growing, Gene "K Barrett" wrote in message . .. Some of you may remember that I was stuck between 2 mentors (feeling like a fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett |
#6
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Virus test results
SPOTS!
Oh you have Dalmation Fire House. Large white orchids with black spots. Often with moist nose and smells bad when wet "K Barrett" wrote in message . .. Yeah, but on the other hand if he hadn't spoken up I'd still be lying to myself about the spots in my collection. K Barrett "Gene Schurg" wrote in message news:22VRh.1777$AS6.792@trnddc04... KB, The spite in me would want to take it in and rub Mr. Know-it-all's nose in it. I think you should send him the bill. Good Growing, Gene "K Barrett" wrote in message . .. Some of you may remember that I was stuck between 2 mentors (feeling like a fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett |
#7
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Virus test results
On Apr 7, 5:43 pm, "K Barrett" wrote:
Yes the one's that I thought looked like thrip damage I'm sending in for testing. The ones with odd blotches and veining I'm holding off. Of the 25 I sent in most had odd blotches or veins. Only 2 of those came back with virus. All the "thrip damage" spotted ones came back with virus. Which ****es me off because one of my favs has 'Thrip damage'. Over time I'm going to get the whole collection checked. It'll take a while, but hey. Its the olny way to be sure. K Barrett "Diana Kulaga" wrote in message .. . Well then, the news is good and bad. Great that the original suspect is clean. After your last thread about this, I'm sure you're not totally surprised that a few culprits turned up. Are you going to test any more? I'll be interested to see the photos. Diana "K Barrett" wrote in message ... Some of you may remember that I was stuck between 2 mentors (feeling like a fool) over whether a plant I'd brough in for judging had virus or not. Sure enough it didn't. It was clean. I sent 25 plants in for testing of those only 4 had OSRV. (Odont ring spot virus.) They've been sent to the trash can. I'll post the pics on apbo (or whatever those initials are.) K Barrett- Hide quoted text - - Show quoted text - What testing lab do you use? I have a few orchids that I would like to have tested. Thank you, Nancy |
#8
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Virus test results
Critter Creek Lab. The only one I know about. Its at
http://www.crittercreeklab.com/ K "Nancy G." wrote in message oups.com... What testing lab do you use? I have a few orchids that I would like to have tested. Thank you, Nancy |
#9
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Virus test results
It's possible to become very philosophical about virus testing in orchids. There isn't a lot of good literature on them, a lot of bad literature, and a bunch of stuff that nobody can (or wants to) believe. It's a minefield. Visual tests: The ol' EBT (eyeball test) doesn't measure up. "Looks like virus" flat-out doesn't cut it. Lab tests: The standard ELISA test has some problems to it. The first thing is that orchids *may* have a propensity to give false positives (as related to me by a PhD in plant pathology from a leading school). The other problem is that there are a number of viruses that afflict orchids, and the big two are the only ones people test for. ImmunoStrips may be better, or may not. Agdia now sells twin tests for CyMV and ORSV- two tests on one strip. The price drops to $5/test in quantity. The only test that seems to meet the criterion for low false positive, low false negatives, detection of multiple viruses- and has the benefit of being inexpensive- is the ol' indicator plant. Plants are grown from seed, the leaves are scarred with some sandpaper, and plant juice is dripped into the wound. Some indicator plants fail to undergo systemic infection, meaning multiple leaves can be tested and "read." It also may be useful for some (not all) viruses that we normally don't test for- impatiens necrotic spot virus (INSV), turnip mosaic potyvirus, orchid fleck rabdovirus, vanilla mosaic potyvirus, etc. Northen's "Home Orchid Growing" has a good section on use of indicator plants. I understand some species of Oxalis are useful, as is Cassia occidentalis. I also understand some cultivars of what used to be very useful indicator plants have been selectively bred for their *resistance* to viruses, so when possible wild strains should be selected. The address in the header is not valid. Send no email there. -AJHicks Chandler, AZ |
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