Hi Ken, That's a really interesting pattern. The top of the leaves are green but then starts mottling and becoming yellow-green. I have not seen that before but there is definitely some sort of issue with the bulb. Snails and slugs have been known to spread viruses because they scrape the plant tissue that they eat, causing mechanical inoculation of the viruses and other diseases. Nhu On Thu, Dec 8, 2011 at 7:29 AM, Ken <kjblack@pacbell.net> wrote: > Do slugs/snails transmit virus or were they attracted to this plant > perhaps because of its supressed immune level? My other healthy-looking > plants do not seem to attract slugs and snails. >