You need to go to: http://crittercreeklab.s5.com/
They are one of the best known of the labortories that test for orchid viruses. Look over the menu on the left. Lots of info about what and how they do it. Also has an FAQ. I have not used their services but know someone who has and according to that person they do a great job for not a ton of money. Sharon On 25 Aug 2006 at 16:14, K Barrett wrote: > > Recently, on a different forum, a person showed pictures of orchids he > suspected of harboring > virus. Of course no one can tell from a picture whether a plant is virused or > not.It should be > tested.I was about to recommend to the person showing the pictures that he > get his plants > tested when I realizedthat I wouldn't know what the test results would > mean.Anyone interested > in talking about viruses? > > I wondered about how we judge 'by sight' if a plant has a virus.I know about > color break in a > bloom.I know about a trapeziodal mark on a leaf of a cymbidium.I know about > longitudinal > streaks in a leaf. > > Of these 3 the only one I believe to be pathognomonic is the trapezoidal mark > on a cymbidium > leaf. Color break can come from a variety of sources, heat, pesticides are > two that come to > mind. Streaked leaves from heat or other poor culture. > > In the back of my mind I recall that old cut-flower houses didn't really care > about virused plants > as long as the virus didn't affect the bloom,therefore thereare several > viruses > housedinorchids, but since they don't affect the blooms they aren't > considered a problem. Also > in the back of my mind I recall that labs only test for a few viruses and you > have to know which is > virus a problem for your plant; like should you care aboutodont ring spot or > cymbidium virus if > you only grow cattleyas? Which brings up another possible myth: not all > orchids are 'susceptible' > to virus (Paphs aren't?? something like that.) > > Any information would be a help. Obviously I've got a lot to learn > > K Barrett > N Calif, USA > > > > > > > > Search from any Web page with powerful protection. Get the FREE Windows Live > Toolbar > Today! Try it now! _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
