In Ladue and Clayton, the main invasive honeysuckle species is the Amur Honeysuckle (Lonicera maackii).

The leaves are opposite, simple, ovate, 2 to 3 inches long, green above, paler and slightly fuzzy below.

Fragrant tubular yellow and white flowers about 3/4 of an inch to an inch with very thin petals appear in late spring.

Abundent red berries about 1/4 inch in diameter are usually present in the summer and often persist into the winter.

• Manual - Hand removal of seedlings or small plants may be useful for light infestations. Repeated clipping
yearly to prevent dense stands from forming.

• Chemical - Use a systemic herbicide. Thoroughly wet all leaves with glyphosate (e.g., Roundup) as a 2-
percent solution in water with a surfactant from August to October. Cut large stems and immediately treat
stumps with imazapyr as a 10 percent solution or a glyphosate herbicide as a 20-percent solution. Check
label directions for details. Contact your state coop extension for local recommendations.

• Prescribed Burning - Initiate prescribed burning prior to the seed dispersal period (late summer to early
autumn) to minimize reinvasion of treated habitats.

http://threatsummary.forestthreats.org/threats/threatSummaryViewer.cfm?threatID=33 (Accessed October 24, 2008)

http://hcs.osu.edu/hcs/TMI/Plantlist/lo_ackii.html (Accessed October 24, 2008)

http://www.invasive.org/browse/subject.cfm?sub=3040 (Accessed October 24, 2008)