Mich. Comp. Laws § 286.707

Sec. 7. (1) Seed that has been treated with an irritating or poisonous substance, harmful to human or other vertebrate animals, shall be colored or dyed a color contrasting with the natural color of the seed, and shall be labeled with the following information: (a) A warning statement in 8-point or larger type that the seed has been treated. (b) The common, coined, chemical, or abbreviated chemical name of the substance applied to the seed. (c) A caution statement in 8-point or larger type as follows: "treated seed—do not use for food, feed, or oil purposes". (2) If the seed is treated, and the treatment is not irritating, poisonous, or harmful to humans or other vertebrate animals, the seed shall be labeled with a statement, in 8-point or larger type, describing the applied substance.