Currently, chemical control options for Japanese climbing fern are limited to glyphosate as a low volume foliar application at a rate of 4 qt/A or 2%. It tolerates sun and shade. About Japanese Climbing Fern. If fern coverage is se-vere enough to warrant a specific treatment, applications It grows in moist or dry woods, along ditches and rivers, and in various disturbed sites. Japanese climbing fern is closely related to Old World climbing fern (Lygodium microphyllum), another non-native invasive species in the United States, which is very widespread in south Florida. Biology and Control of Japanese Climbing Fern (Lygodium japonicum) 2 Lygodiummicrophyllum Japanese climbing fern is distinguished by its feathery, light green fronds, with triangular, compound leaf branches (pinnae) and lobed, stalked leaflets (pinnules) on wiry, twining, stems (rachises), often orange to brown in color. Identification: This fern has lacy finely-divided leaves along green to orange to black wiry vines that can grow up to 90 ft long.Stems are slender but difficult to break; they are twining and climbing, wiry, green to straw-colored or reddish. Plant: Japanese climbing fern (Lygodium japonicum) is a climbing and twining perennial vine-like fern native to Asia and tropical Australia. Collaborators: Greg MacDonald, Mack Thetford, and … Escort performance at 1-2 oz/a was desirable from a natural resource perspective because of the reduced non-target damage of understory plants relative to Accord. Tropicos database. control of Japanese climbing fern. Japanese climbing fern is a highly invasive non-native plant infesting public conservation lands in North and West Florida and present in much of the southeastern U.S. However, Escort would be inade-quate for the needs of the pine straw farmers because the Figure 5. Gainesville, Florida, USA: University of Florida Institute of Food and Agricultural Sciences. Mechanical Eradication from a site can difficult due to the production of small spores missed during plant removal or dispersed in wind or soil from off-site. It has lacy finely divided leaves along green-to-orange-toblack wiry vines. Currently, chemical control options for Japa-nese climbing fern are limited to glyphosate as a low volume foliar application at a rate of 4 qt/A or 2%. Japanese climbing fern [Lygodium japonicum (Thunb.) Example of mid-rotation brush control application results. for control of Japanese climbing fern. Despite its attractive appearance, Japanese climbing fern is a Category I noxious weed (listed by the Florida Exotic Pest Plant Council) that is overtaking forests throughout the southeast. St. Louis, Missouri, USA: Missouri Botanical Garden. Biology and control of Japanese climbing fern (Lygodium japonicum). Chemical More research is needed on the chemical control of Japanese climbing fern. The Japanese Climbing Fern is a perennial viney fern, climbing and twining to 90 feet (30 m) long, with lacy, finely divided leaves along green to orange to black wiry vines, often forming mats of shrub- and tree-covering infestations. Associate Professor, Forest Ecology and Silviculture. Control of Japanese climbing fern (Lygodium japonicum) reproduction Presenter: Kimberly Bohn, Ph.D. Missouri Botanical Garden, 2015. Japanese climbing fern (Lygodium japonicum) is a perennial climbing fern native to East Asia.It was introduced to the southeastern U.S. as an ornamental in the early 1900s. (Photo by Andrew Ezell) Japanese Climbing Fern Japanese climbing fern is an introduced vine that can engulf young pine trees and result in reduced growth and vigor and, in extreme cases, death. 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