Cooperative Extension Fresno County
University of California
Cooperative Extension Fresno County

Read the Label

Active Ingredient

What is an active ingredient

An active ingredient is the chemical(s) in a product that are responsible for the pesticidal effect. What is on a pesticide label?  Labels contain information on product name, active ingredients, precautionary statements, application procedures, preventative measures, target pest and signal words, statement of practical treatment, hazards and storage and disposal directions.

The pesticide label is your guide to using pesticides safely and effectively. It contains pertinent information that you should read and understand before you use a pesticide product. Read more on pesticide product labels.





Label showing signal word, active ingredient(s) and other important information
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