These are actually botrytis spores and can spread to all your tulips. Pull out the entire infected plant and bulb, and discard to control the disease. Botrytis is called Fire Flight because of its rapid spread. Tulips are found in the wild in N. Africa, Southern Italy, Southern France, Turkey, China, Japan and Korea. All at an average latitude of 40 degrees.
Bulbs are quick and easy to grow.
Only a small hole is needed and minimal care for years of satisfaction. Plant your bulbs in mass for the most dramatic effect. Exceptions to this may be some of the larger Alliums and Fritillaries of which three planted together would create a focal point. To keep squirrels and other critters away from your bulbs follow these simple tips. Plant bulbs over 4 inches deep, cover with chicken wire bought at almost any hardware or lumber store or plant bulbs distasteful to rodents such as daffodils, alliums or fritillarias.