About YOSHII SACHIKO
About 千葉県蚕セ
About SAKAMOTO MASAO
About 千葉県蚕セ
About 千葉県蚕業センター研究報告
About Mulberry tree
About organophosphorus insecticide
About Industrial crops in general
About Plant damage caused by insects,mites
About Control of plant diseases and insect damages in general
About キボシカミキリ
About 成育
About 樹勢
About 防除技術