Ecology and Management of
Invasive Plants Program

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Our Purpose

The Invasive Plants website contains information on invasive plants, their impact on native species, and their control (particularly biological control).

The web pages focus on work conducted by students and staff of the Ecology and Management of Invasive Plants Program, directed by Bernd Blossey, at Cornell University. The majority of our work concerns species and ecosystems in northeastern North America, but most species we work with are distributed widely through North America. 

We invite you to explore this website and to participate or contribute to ongoing research projects.

News and Events


Invitation to a Phragmites workshop on October 15-16 2007
to discuss the latest findings on spread, impacts, genetics and control methods.

Introduced Phragmites australis is considered one of the most invasive and ecologically damaging plant species in North America. The continued spread of the introduced haplotype does not only result in ecological and economic problems, it also threatens the continued existence of endemic Phragmites australis americanus haplotypes, particularly in the East. read more

Proposed Phragmites
Host Specificity Test Plant List

Since 1998 we have studied insects in Europe to assess their suitability for control of invasive Phragmits australis in North America. We have finally settled on four different shoot mining noctuid moth species.  The next step in the development of biological control is detailed host specificity screening. We have proposed a list of about 48 species (or haplotypes) for host specificity testing (TABLE 1). read more

 

Postdoctoral Associate:
Ecology and Management of Invasive Plants Program
Department of Natural Resources

The Ecology and Management of Invasive Plants Program announces a position for a post-doctoral associate in a new project to assess the single and combined impacts of multiple stressors on demography of rare and endangered forest plants in the eastern US. This project (PI’s Bernd Blossey and Evan Cooch) will examine how native herbivores (white tailed deer), introduced earthworms, introduced plants (garlic mustard, Japanese stilt grass, barberry) and introduced invertebrates (slugs and a root feeding weevil) affect demography of native plant species in different functional groups.
 read more