I have three small beds which have been planted with tulips for 3-4 years. Most of the tulips come back each year, and I usually don't add new ones, so I know what they look like. This year a good number of the tulips, different varieties, were streaked and flamed for the first time. It's quite handsome, but am I likely right in thinking that they have virus? What should I do with them? Can they pass the disease to other bulbs? These are my only tulips, but I have narcissus (my chief love), crocuses, lilies, and other bulbs close by. If I destroy the tulips (oh! the thought hurts) could I use the bed again for them, or would I need to treat it, or wait some years? I don't use poisons as a rule in my garden, and don't know much about them.

Thanks for any information.

Melissa