[MAIPC] Microstegium versus Perilla, August 30 2020

[Marc Imlay]

Microstegium versus Perilla

 

I came across a huge mono-culture of Japanese stiltgrass about 25% of an
acre. In the middle of the patch was a monoculture  patch of Beefsteak mint
about 15 feet x 20 feet with almost no stiltgrass. There were two other
beefsteak patches about 5 x 10 feet with no Microstegium. Is this just one
non-native invasive outcompeting another one? Or is there another
possibility that could be explored? For example, reintroduce Mentha arvenis.
Any potential biocontrol?

 

Marc Imlay, PhD

 

Conservation biologist, 

Board member of the Mid-Atlantic Exotic Pest Plant Council, 

,

Natural Places Committee

for the Maryland Chapter of the Sierra Club.

 



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