Weed Management

Midwest Vegetable Production Guide (ID-56)​


Weed Management Strategies  (pdf) (includes table of rotation restrictions for corn and soybean herbicides)
Herbicide Effectiveness Guide (pdf) 
Preharvest Intervals and Restricted Entry Intervals for Herbicides (pdf
Common Names of Registered Herbicides (pdf


Cultural Practices in Vegetable Crop Weed Management Programs
(Bull. 888-00) (The Ohio State Univ.) (html)
Cultivation Equipment for Weed Control: Pros, Cons and Sources (Univ. of Vermont) (html)

Vegetable Farmers and their Weed Control Machines (Univs. of Vermont and Mass.)

This video shows farmers talking about cultivation and flaming equipment they use in vegetable production and shows the equipment in action. Implements to remove weeds from the edge of plastic are shown. The video can be viewed on-line with a fast internet connection, or can be ordered in tape format.

Purdue Weed Science (Web Site)

Herbicide Application

Calibration of Hand Sprayers For Herbicide Application (The Ohio State Univ.) html
Reducing Spray Drift (Bull. 816-00) (The Ohio State Univ.) html

Herbicide Information

Common and Chemical Names of Herbicides Approved by the WSSA(html)
Adjuvant Use With Herbicides: Factors to Consider (WS-7) (html)
Herbicide Mode-of-Action Summary (WS-23-W) (html) (pdf)
Herbicide Injury Symptoms (NC State Univ.) (html)

Illinois Agricultural Pest Management Handbook (Univ. of Illinois)

Toxicity of Herbicides (pdf)
Factors Affecting Herbicide Persistence and Testing fo​r Residues in Soil (pdf)
Weed Resistance to Herbicides (pdf)

How Herbicides Work (Univ. of Illinois) (pdf)
International Survey of Herbicide Resistant Weeds - Herbicide Resistant Weeds in the USA

Weed Identification

Weed Identification (University of Illinois) (Web site)

Key to 172 broadleaf and grass weeds; includes photos.

Common Weed Seedlings of Michigan (E-1363) (Michigan State Univ.) (html)

Dichotomous key to seedling broadleaf and grass weeds with photos of seedlings, important features for identification, and often a plant at a later stage of vegetative growth or in bloom.

Weed Identification Guide (Virginia Tech.) (Web site)

Photos and descriptions of weeds at the seedling, vegetative and flowering stages; key to grass weeds.

Missouri Weeds (Univ. of Missouri) (Web site)

Photos of weeds in various growth stages with descriptions of key characters.

Annual Broadleaf Weed Identification (NCR Pub. 90) (Univ. of Minn.) (html)
Annual Grass and Perennial Weed Identification (Univ. of Minn.) (html)
Weed Seedling Identification (Univ. of Minn.) (html)
Annual Grass and Perennial Weed Seedling Identification (Univ. of Minn.) (html)
Weed Fact Sheets from Pennsylvania State University (Cornell Univ.) Index of pdf files.
Pigweed Identification Guide (Kansas State Univ.) (pdf)

Weeds of the North Central States (NCR Res. Pub. 281 and UIUC Bull. 772) (html)

Botanical descriptions and line drawings of weeds in the North Central Region. This is an on-line version of the print publication.

Early Spring Weeds of No-Till Crop Production (Univ. of Missouri) (html)Available in print and pdf formats, this 24-page publication includes photos of weeds, brief descriptions, and an identification key.
Weed Photo Gallery (WSSA)
Invasive and Exotic Weeds (USDA and Univ. of Georgia)Photos of weeds.

N.J. Agricultural Weed Gallery (Rutgers) (Web site)

Photos of weeds, typically an established plant or flower in the field; indexed by common and Latin name; includes an index of thumbnail images.

Additional Resources

Additional Weed Management Links

Horticulture & Landscape Architecture, 625 Agriculture Mall Drive, West Lafayette, IN 47907-2010 USA, (765) 494-1300

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