Herbicide Injury ID

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.  Users 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, the user 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, the user 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.