1 E. cuniculi are carried in the blood to other parts of the body, particularly neural tissue. 2  Spores from infected urine can remain in the environment for a month. 3  The parasites can infect and be shed by many other animals but seldom cause clinical disease in other animals.
Most annual flowers will die when fall brings frost. Marigolds, zinnias, petunias, delphinium and many other common flowering plants are examples of plants that frost will kill. In more northerly climate zones, it's difficult to get anything to bloom in the harsh winter months.
Marigolds begin to die back in late fall after night temperatures begin to drop below 40 degrees Fahrenheit in areas where marigolds grow as perennials. Cut back the marigolds to the ground with clean shears after they die back completely. Remove the trimmings from the bed so they don't harbor pests over winter. If the marigolds don't survive winter in your area, pull them up after they begin to decline in fall. Floridata: Tagetes Spp.