Alberto: It has become common practice in the US for several of the larger nurseries to virus index and clean all plants that they sell. This can be done either via hot water/tissue culture or chemically. The cost is typically between $1000 and $2500 per plant, so small nurseries often cannot afford the cost...it all depends on the financial return that the plant will generate. On some plants, the only difference between a clean plant and an infected one is the lack of leaf streaks, while in other plants, original vigor is restored. Unfortunately, many plants easily get reinfected when grown outdoors. The current amount of virus testing has shown that a significant number of the plants that we all grow in our gardens are infected with at least one virus, but unless the virus causes a significant problem such as disfigurement of vigor loss, most folks never suspect a problem. It's only the plants that show symptoms that cause gardeners to get upset. Alberto Castillo wrote: > Seeds are fortunately the only common way to obtain virus free material, but there is no way to propagate clean material of the immense number of hybrids/varieties around that are infected. Sadly. > > > > > > Regards > > >> From: mikemace@att.net >> To: pbs@lists.ibiblio.org >> Date: Thu, 10 Sep 2009 10:56:00 -0700 >> Subject: [pbs] Virus transmission in Amaryllid seeds? >> >> This discussion of possible viruses in x Amarcrinum reminded me of some >> discussions we had in the past about viruses in some Amaryllis "Multiflora" >> bulbs. >> >> Was there ever a consensus on whether viruses can be transmitted through the >> seeds of amaryllids that have fleshy seeds? I'm just wondering how much >> risk there is when we trade them around. >> >> Mike >> San Jose, CA >> >> _______________________________________________ >> pbs mailing list >> pbs@lists.ibiblio.org >> http://pacificbulbsociety.org/list.php >> http://pacificbulbsociety.org/pbswiki/ >> > > _________________________________________________________________ > ¡Viene la primavera: que no te encuentre sin compañía! Probá con MSN Amor y Amistad > http://match.ar.msn.com/channel/index.aspx/… > _______________________________________________ > pbs mailing list > pbs@lists.ibiblio.org > http://pacificbulbsociety.org/list.php > http://pacificbulbsociety.org/pbswiki/ > -- Tony Avent Plant Delights Nursery @ Juniper Level Botanic Garden 9241 Sauls Road Raleigh, North Carolina 27603 USA Minimum Winter Temps 0-5 F Maximum Summer Temps 95-105F USDA Hardiness Zone 7b email tony@plantdelights.com website http://www.plantdelights.com/ phone 919 772-4794 fax 919 772-4752 "I consider every plant hardy until I have killed it myself...at least three times" - Avent