Invasive Air Potato and its Biological Control

Air potatoes (Dioscorea bulbifera) are members of the yam family and are native to Asia and sub-Saharan Africa. Air potatoes can now be found throughout Florida and are considered an extremely aggressive invasive species. The vine was added to the Florida Department of Agriculture and Consumer Services’ Noxious Weed List in 1999.

A classic method of biological control involves finding an organism that feeds exclusively on the invasive plant and then releasing it in the invaded area. Once established the control agent will provide long-term suppression of the plant.

Scientists with the US Department of Agriculture identified a beetle (Lilioceris cheni) in Nepal and China that feeds on air potato leaves. There is now a program in Florida to use this beetle to control the air potato. If you have air potato on your property you can obtain beetles free of charge. To learn more about the program and instructions for ordering beetles visit

http://bcrcl.ifas.ufl.edu/airpotatobiologicalcontrol.shtml

The Friends want to thank Elise Schuchman (Florida Department of Agriculture) for coming out to the Preserve and giving an informative presentation on the invasive air potato vine, and efforts to control it.