Weed Science

Two lush crop fields to the left and a blighted field to the right

Synthetic auxin applicator training

Complete the federally mandated training required to buy or use Engenia, XtendiMax or FeXapan at your own pace in our online course.

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Crop field with weeds

What weeds are these?

Our Weed ID Guide will help you identify weeds in your crops, gardens, lawns, pastures and even ponds.

Identify your weeds

The Weed Science program at the University of Missouri administers extension, research and teaching programs to keep you informed of the latest findings in weed management.

Our online resources include a Missouri weed ID guide and a herbicide injury guide. Both of these guides are full of photos — to aid in the identification of a weed or the diagnosis of herbicide-caused crop injury, respectively. They are also available as mobile apps. In addition, we offer numerous publications, newsletter articles, videos and PowerPoint presentations on various aspects of weed control.

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