641.566.3658 support@afschem.com

Crop Protection

When you’re in need of chemical support for your field operations – whether it’s soybeans, corn or other crops, the Asmus Farm Supply Chemistry Department is the best place to start. Any of the chemistry department agronomists are happy to answer your questions and get you started on the right path for better crop protection, production and profit.

Since the Beginning

The AFS Chemistry Department is the oldest division in the company starting back in 1960. Our CCA certified agronomy staff focuses on providing the best recommendations, using the best chemical formulations distributed to farm operations that apply the products themselves.  We represent all major manufacturers, using an unbiased approach to recommend their products to help solve your issues. Generic alternatives are available in some product lines.


Order Your Chemical Online!

Want to shop from a variety of brands like the ones listed below? Check out our online store and place your chemical order today!

Thank you to our Partners

Questions about Crop Protection Services? Send us a Message!

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Maximize your Corteva Cash by redeeming it with AFS!

Corteva cash are funds farmers earn from purchases of Pioneer brand seed that can be redeemed at authorized retailers for purchases of Crop Protection Products from Corteva Agriscience.