Atrazine Pesticide Injury

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While crop rotation is an important tool for insect and disease control, careful attention must be paid to the “herbicide history” of a particular field. Atrazine is a powerful broadleaf herbicide widely used in grain plantings, but its residue may persist for several seasons limiting the broadleaf crops that can be planted afterward. Atrazine plants appear dwarfed, and may develop severe leaf scorch. Plant vigor and yield are reduced.

Keep careful records of cropping rotations, and avoid planting sensitive crops in fields where persistent chemicals have been applied.

The information given herein is for educational purposes only. Reference to commercial products or trade names is made with the understanding that no discrimination is intended and no endorsement by the Texas AgriLife Extension Service is implied.

Educational programs of the Texas AgriLife Extension Service are open to all people without regard to race, color, sex, disability, religion, age, or national origin.

Publication Revised July 2009

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