Friday, July 01, 2005

Rusted Out

New and notable in Massachusetts this week is daylily rust (Puccinia hemerocallidis), a fungus that attacks, you guessed it, daylilies. The Massachusetts Introduced Pests Outreach Project put out this pest alert to warn nurseries and gardeners of the first diagnosed case of the year. The rust has only been known in Massachusetts since around 2003, and was discovered in the U.S. in 2000. Its hosts appear to be limited to the non-native Hemerocallis (daylily), Patrinia, and Hosta genera.

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