Herbicide Injury ID

Need help diagnosing herbicide injury? Let Mizzou Weed Science assist.

The University of Missouri Herbicide Injury ID app assists users in diagnosing herbicide injury. Search by visible plant symptoms, herbicide trade names, active ingredients, or herbicide site-of-action numbers. You also have the option to send photos to an expert.

DIAGNOSE PLANT SYMPTOMS: Key out the type of herbicide injury by answering a series of questions pertaining to the symptoms. On the results page, you will find photographs and descriptions of injury, which are organized by herbicide sites-of-action.

SEARCH BY HERBICIDE: Enter the trade name or active ingredient of the herbicide-of-interest or scroll through a list of herbicides. On the results page, you will find photographs and descriptions of injury, which are organized by herbicide sites of action.

VIEW SITES-OF-ACTION: Find the list of herbicide sites-of-action commonly used in agriculture. The list is arranged by group numbers, which are found on the front of many herbicide labels.

EMAIL AN EXPERT: Send photographs and detailed description of the observed herbicide injury to University of Missouri Weed Science Extension.