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River Valley District

Crop Protection


Weeds are a major pest problem of cropland and pastureland that cause tremendous losses. Weed problems and weed management technologies are constantly evolving and changing.

Information for Commercial & Private Pesticide Applicators 

Take Action Herbicide Classification Chart (pdf)

WSSA Weed Herbicides

Herbicide Mode of Action and Injury Symptons



Insecticide Classification Chart (pdf)


Fungicide Classification Poster (pdf)

2020 Rebecca Zach

Rebecca Zach

District Extension Agent
Crop Production

Concordia Office
811 Washington, Suite E
Concordia, KS  66901
Phone:  785-243-8185
Fax:  785-243-8187

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