Weeds to Watch New Weed Threats for Corn and Soybean Fields

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PDF 2 pages 16 weeds identified by Iowa State University Extension, University of Illinois Extension, Michigan State University Extension, University of Minnesota Extension Service, Purdue University Cooperative Extension, University of Wisconsin Cooperative Extension. Funding provided by: North Central Region Pest Management Center.

Weed communities continually shift in response to management practices. Failure to properly identify new weeds when they first enter a field may result in the plant becoming permanently established and increase weed management costs. The weeds included on this poster pose an increasing threat to agronomic fields. The maps provide information regarding current distribution of species.

Weeds to Watch New Weed Threats for Corn and Soybean Fields IPM 72 September 2003

Identified Weeds with Images:

Cressleaf Groundsel (Butterweed)
Hophornbeam Copperleaf
Kochia
Star-of-Bethlehem
Purple Deadnettle
Giant Ragweed
Lambsquarters Complex (Chenopodium spp.)
White Campion (White Cockle)
Biennial Wormwood
Burcucumber
Waterhemp
Wild Four O?Clock
Asiatic Dayflower
Wild Buckwheat
Palmer Amaranth
Pokeweed

Click on Regional Links below for additional selections:
Regions Impacted: (See related documents in region) USA, Central Plains, Middle West, MidWest, MidWestern, Northwestern

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