Visual Reference Library - Wheat

Image of UNKNOWN FOREIGN SUBSTANCE  (PINK WHEAT)
Consider wheat kernels with any amount of discoloration caused by treatment with a fungicide, insecticide, or similar substance as an Unknown Foreign Substance (FSUB). 
The illustration shows one possible type of treatment. Kernels that contain seed treatment may or may not glow under a black light.
NOTE: Some molds will glow under a black light and should not be considered treated seed.

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Last updated December 2016