{"id":4029,"date":"2016-10-21T00:00:00","date_gmt":"2016-10-21T04:00:00","guid":{"rendered":"https:\/\/firstascentstaging.com\/iwm2019\/weed-identification\/"},"modified":"2025-04-23T10:13:53","modified_gmt":"2025-04-23T14:13:53","slug":"weed-identification","status":"publish","type":"page","link":"https:\/\/growiwm.org\/weed-identification\/","title":{"rendered":"Weed Identification"},"content":{"rendered":"\n
\n\t\t
\n\n\t\t
\n\t\t\t

Weed Identification<\/h1>\n\t\t\t
<\/div>\n\t\t\t\t\t<\/div>\n\n\t<\/div>\n<\/section>\n
\n\n<\/div><\/div>
\n

Weed identification (ID) on a farm can be a tedious task. But weeds must be properly identified prior to weed control activities. Two weed species may look very similar at a given growth stage but may differ greatly in terms of the life cycle, modes of reproduction, crop-weed competition, and responses to control tactics. Resources listed below can help you identify weeds.<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

Tools:<\/span><\/h3>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

Web-based apps:<\/span><\/h4>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Missouri<\/strong>
Weed Identification Key<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Virginia Tech<\/strong>
Weed Identification Guide<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Wisconsin <\/strong>
Weed Identification Online Resources<\/span><\/a><\/p>\n<\/div><\/div>\n\n\n

<\/div>\n\n\n
\n

  <\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>
\n
\n
\n

<\/p>\n<\/div><\/div>\n\n

\n

<\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
<\/div>\n\n\n\n
<\/div>\n<\/div>\n\n\n\n
\n
<\/div>\n\n\n
\n

<\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

Smartphone apps (iOS or Android)<\/span><\/h4>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n

PictureThis<\/strong><\/p>\n<\/div><\/div>\n\n

\n

Download<\/span><\/a><\/p>\n<\/div><\/div>\n\n\n

<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

LeafSnap<\/strong><\/p>\n<\/div><\/div>\n\n

\n

Download<\/mark><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n

PlantNet <\/strong><\/p>\n<\/div><\/div>\n\n

\n

Download<\/span><\/a> <\/span><\/p>\n<\/div><\/div>\n\n\n

<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Google Lens<\/strong>
Download<\/span><\/a> <\/span><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n

Seek by iNaturalist <\/strong>
Download<\/span><\/a> <\/p>\n<\/div><\/div>\n\n

\n

  <\/p>\n<\/div><\/div>\n\n\n

<\/div>\n\n\n
\n

  For a review of these apps and others, see this<\/strong> Michigan State University analysis<\/mark><\/a>. <\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

Photo Galleries (by region):<\/span><\/h3>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

Northeast<\/span><\/h4>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Rutgers University <\/strong>
New Jersey Weed Gallery<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Massachusetts Amherst<\/strong>
Weed Herbarium<\/span><\/a> <\/span><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Penn State University <\/strong>
Weed ID For Pennsylvania<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

Midwest<\/span><\/h4>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Missouri<\/strong>
Weed ID<\/span><\/a> <\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Minnesota <\/strong>
Weed Identification<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

The Ohio State University <\/strong>
Ohio Perennial and Biennial Weed Guide<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

South<\/span><\/h4>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Louisiana State University <\/strong>
Weed Identification<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Florida<\/strong>
Weed Identification Guide <\/a><\/span><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Auburn University <\/strong>
Weed Identification<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

West<\/span><\/h4>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of California IPM <\/strong>
Weed Photo Gallery<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

New Mexico State University <\/strong>
Weed Database<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Wyoming <\/strong>
Weed ID Guide<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n

Guides (hard copy)<\/span>:<\/h3>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
Weeds of the Northeast<\/span><\/h5>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Weeds of the Northeast Richard H. Uva, Joseph C. Neal, and Joseph M. DiTomaso
ISBN: 978-0801483349<\/em>
Browse<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
Weeds of the South<\/span><\/h5>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n

Weeds of the South edited by Charles T. Bryson and<\/em>
Michael S. DeFelice
ISBN: 978-0820330464<\/em>
Browse<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>
\n
\n
\n
Weeds of the Midwestern United States and Central Canada<\/span><\/h5>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Weeds of the Midwestern United States and Central Canada edited by Charles T. Bryson & Michael S. DeFelice
SBN: 978-0820335063<\/em>
Browse<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
Weeds of the Wests<\/span><\/h5>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n

Weeds of the West by Tom D. Whitson, Larry C. Burrill, Steven A. Dewey, David W. Cudney, and B.E. Nelson
ISBN: 978-0756711825<\/em>
Browse<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

Other Resources:<\/span><\/h3>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\n
\n
IPM Pocket Guide for Weed ID in Field Crops<\/span><\/h5>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

Michigan State University ($16)<\/strong>
IPM Pocket Guide for Weed ID in Field Crops<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n\n\n\n

\n
Weed ID and Herbicide Injury Guide<\/span><\/h5>\n<\/div><\/div>\n\n\n
<\/div>\n\n\n
\n
\"\"<\/figure>\n<\/div><\/div>\n\n
\n

University of Missouri ($21) <\/strong>
Weed ID and Herbicide Injury Guide<\/span><\/a><\/p>\n<\/div><\/div><\/div>\n<\/div>\n<\/div><\/div>

\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
Weed ID Field Guide<\/h5>\n<\/div><\/div>
\n\n<\/div><\/div>\n
<\/div>\n
\n\n<\/div><\/div>
\n
\"\"<\/figure>\n<\/div><\/div>
\n\n<\/div><\/div>
\n

Iowa State University ($10) <\/strong>
Weed ID Field Guid<\/span><\/a><\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>
\n

For more information on weed identification and characteristics click the button below:<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>\n
\n\t
\n\t\t
\n\t\t\t
\n\t\t\t\t
\n\t\t\t\t\tIdentification and characteristics of weeds\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\n\t\t\t\t\t\tDOWNLOAD HERE \n\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n
\n\n<\/div><\/div>
\n

The following video shows tips on identifying summer annual grasses commonly found in corn, soybean, and cotton fields:<\/p>\n<\/div><\/div>

\n\n<\/div><\/div>\n
\n