on 12/22/05 6:00 AM, Peter wrote: > Thank you for sending me pictures of the legal Phragmipedium kovachii > seedlings you purchased > from Peruflora. > > If you ordered some, be prepared to replate and compot, before the flask > arrive from Peru. > > The pictures show the flask contents as seedlings of many different sizes, > protocorms and medium all > mixed into a messy clump. These need to be replated immediately, in order for > some of them > to grow and survive. > > If the purchased flasks are also contaminated, as some of you have reported, > the fresh replating > medium more often than not will make the contaminants grow so rapidly that > they will choke and > eventually kill the seedlings and protocorms. You must then immediately compot > them from these > contaminated freshly replated flasks. The larger seedlings should survive and > grow into mature plants, > but the smaller ones and the protocorms will most likely die. > > Peter
Hello Peter and all, There is or was a product called PPM sold by Phytotechnology Labs at http://www.phytotechlab.com that is a broad-spectrum biocide that can be used against bacteria and fungi. I checked my catalog (issue 2004-06) that lists technical information (instructions) for the product on page 149. It is listed as product number P820 on that page. I tried to find it on their website by looking at product pages and their search engine but couldn't find it listed. Maybe somebody who orders from them would know if it is still offered and if it worked as advertised. It is listed as being able to remove contamination in culture, and if you take the explants out, sterilize them and then place them back into culture. I haven't used it so don't know if it works or if it is still available, but if you've spent alot for a rare plant it might be something worth trying. Hope this helps, charles -- Charles Ufford Oriskany, NY USA IPA, Central NY and Southern Tier Orchid Societies Http://www.cnyos.org Http://www.geocities.com/charlesufford _______________________________________________ the OrchidGuide Digest (OGD) [email protected] http://orchidguide.com/mailman/listinfo/orchids_orchidguide.com
