Itagaki implored the local residents of Utogi to allow wasabi cultivation in Amagi, and the residents gave him seedlings of wasabi as a reward for his instruction in shiitake cultivation, though it was in violation of the law.
板垣はワサビの栽培を天城でも行いたいと懇願し、有東木の住民はシイタケの礼から禁を犯して板垣にワサビの苗を持たせた。