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Animal and Plant Health Inspection Service
U.S. Department of Agriculture

Statement on Xanthomonas vasicola pv vasculorum

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Contact: Pam Boehland

Some states have observed disease symptoms in corn that are caused by the bacterium Xanthomonas vasicola pv. vasculorum (Xvv). This plant disease presents no health risks to people or animals, and there is no evidence of adverse impact on corn yield or quality from this plant disease.

USDA does not consider this plant disease to be of quarantine significance for domestic or international trade, and intends to address it like any other bacterial disease of corn.  Corn for consumption poses a negligible risk of establishment of the disease in plants, and unprocessed corn to be fed whole to animals poses a low risk of establishment of the disease in plants. Processed corn products will not transmit the disease to plants.  Growers, working with their state departments of agriculture and Extension, have safeguards, best management practices, and other tools to reduce risk of establishment of the disease in plants.
USDA will continue to work closely with state departments of agriculture, Extension services, and industry to provide information about the disease and appropriate management options.

For information about the biology, symptoms, or management of Xvv, please visit: or


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