[APWG] Biological controls summary for maipc

[Marc Imlay]

 Biological control updates with references, research contacts, and
resources for 18 Mid-Atlantic non-native terrestrial and aquatic invasive
species are available in this MAIPC Biocontrol Work Group document on our
MAIPC web site.  

http://www.maipc.org/

 <http://www.maipc.org/MAIPC_BiocontrolWG_Dec18.doc>
http://www.maipc.org/MAIPC_BiocontrolWG_Dec18.doc

At a workshop it was estimated that for ~30 percent of the invasive plant
species there is an effective, host specific, biological control if we do
the research that will make host specific biological controls available. One
example is Japanese Stiltgrass. The update covers curent work on biologial
controls. New work could include work in China on the 3 Asiatic species of
rust that current literature indicates are pathogens only on the genus
Microstegium, 

 

Species Updates
 

TERRESTRIAL PLANTS

Grasses


Japanese stiltgrass


The annual grass Japanese stiltgrass (Microstegium vimineum) can be highly
invasive, especially on disturbed sites, and it is currently widely
distributed in the eastern U.S.  In Oak Ridge National Environmental
Research Park, Tennessee, Japanese stiltgrass was ranked the most
aggressively invasive nonnative species, based on distribution, abundance,
relative difficulty of control, and ability to exclude native plant species
(Fryer 2011).  Two species of Bipolaris have been described as cause of leaf
spots and necrosis of Japanese stiltgrass in the Eastern U.S.; some evidence
is that disease may be suppressing local populations.  Host range of these
species has not been fully tested, although limited symptom development was
reported on a few important grass (grain) species in artificial tests
(Kleczewski et al. 2012).  Research is on-going about this pathogen(s), its
host, and the potential for use in biological control of Japanese
stiltgrass. If you see leaf blight on Japanese stiltgrass during the growing
season please contact work group member William L. Bruckart, III.

 

 
Marc Imlay, PhD (Chair)
Conservation Biologist 
MNCPPC Prince Georges County
Park Ranger Office
Natural and Historical Resources Division
Non-native Invasive Plant Control Coordinator
(301) 442-5657 cell 
ialm at erols.com



 


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