The most importance of control mulberry pyralid in silkworm egg producing farms was to control and clear the over winter generation.

Because of this , it is quarantined in the silkworm egg production. Thus, this field has always been the focus and keypoint of the research on silkworm pathology.

Among the dowry items, besides silk stuff, there must be a pair of young mulberry trees, silkworm and egg sheets.