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Warning: The information in this archived item was not confirmed with the appropriate National Plant Protection Organization and is provided solely for informational purposes. Please use this information with caution.

Subject: Climbing fern contaminates pine straw mulch
Date posted: May 16, 2002
Source: Southeast Exotic Pest Plant Council (USA)
Japanese climbing fern, Lygodium japonicum, is found to contaminate an increasingly valuable landscaping commodity, pine straw mulch. Viable spores of L. japonicum were found in approximately 25% of pine straw bales at several retail nurseries in north Florida (USA). This fern species is currently listed as a State Noxious Weed in Florida, due to its ability to overtop more desirable vegetation, particularly in economically important pine forests. Spores of L. japonicum can survive on both living and dead leaf fronds, which may then be collected during the harvest of pine straw.

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