Iowa State University


Invasive Weed Management Resources
by Bob Hartzler

April 26, 2011 - Invasive plants threaten the integrity of Iowa's remaining native habitats by reducing the ecological and recreational services provided by these areas. In addition, these weedy plants can threaten agricultural production by moving from natural areas (prairies, woodlands, etc.) into ag fields. In some cases, such as common buckthorn, the invasives may serve as hosts of pests that attack crop plants. Buckthorn is the overwintering host of the soybean aphid, and also is the alternate host for oat crown rust.

Two new resources have been developed to provide information to help manage invasive plants. The first is a database of control tactics for invasive plants found in the midwest. It was developed cooperatively by the Mark Renz lab at the University of Wisconsin and the Midwest Invasive Plant Network (MIPN). The Invasive Plant Control Database provides information on the effectiveness of cultural,mechanical and chemical control tactics. All information provided in the database has been reviewed by experts in management of the particular species.

Early detection is critical in order to prevent the spread of invasive species into new areas. The Great Lakes Early Detection Network (GLEDN) is a web-based mapping system that allows individuals to report new infestations of invasive plants throughout the Great Lake

leftbar.JPG (7146 bytes)rightbar.jpg (2335 bytes)

s region (including Iowa). All new sightings reported on the network are verified by professionals. Users can sign up to receive email notifications of verified sightings in areas of their particular interest (county, state, etc.). GLEDN is a collaboration among many stakeholders, and combines data from other existing mapping systems such as EDDMaps.


Prepared by Bob Hartzler, extension weed management specialist, Department of Agronomy, Iowa State University

For more information contact:
ISU Extension Agronomy
2104 Agronomy Hall
Ames, Iowa 50011-1010

Copyright 1996-2006, Iowa State University, all rights reserved  

Common chemical and trade names are used in this publication. The use of trade names is for clarity by the reader. Inclusion of a trade name does not imply endorsement of that particular brand of herbicide and exclusion does not imply nonapproval.