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Animal and Plant Health Inspection Service logo Fruits and Vegetables Import Requirements (FAVIR)
Effective October 1, 2022 the Fruits and Vegetables Import Requirements (FAVIR) database has been replaced by the Agricultural Commodity Import Requirements database at

Commodity Guide Page
The Commodity Guide Page provides general product-related information and may serve as a tool to help regulatory officials identify fruits and vegetables intercepted at U.S. ports of entry. A flag ( Access Restricted to APHIS/CBP ) indicates information that is intended for and available to an APHIS/CBP audience only.
Corn Smut Galls Ustilago maydis Commodity Summary
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Approved Name: Corn Smut Galls 
Scientific Name(s): Ustilago maydis 
Common Name(s): Mexican caviar, Mexican truffles, corn smut galls, cuitlacoche (huitlacoche), maize mushroom 
Belongs to:  
Related to/ Includes:  
Description: Corn smut galls","
  • Fruiting bodies of Ustilago maydis
  • Galls may be naked or attached to parts of the corn plant
  • Galls of corn smut (Ustilago maydis) are tumorlike and covered with glistening, greenish to silvery-white tissue
  • Galls may be found on any above ground part
  • Sclerotia of horse's tooth ergot (Claviceps gigantea) are white to grayish-brown and comma-shaped, resembling a horse's tooth (hence their Spanish name, diente de caballo)
  • Sclerotia are on the ear, replacing the corn kernels
  • May be several sclerotia per ear
Season Information: No Seasonal Information available
GRIN url:  
Image(s): No image(s) found
Page ID: GuidePageP
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