natural insecticide

Cover Image: Mecopoda elongata ( Katydid long-horned grasshopper ) / Platycleis bonnet ( Cricket ) / Yamamoto Keigu 1868 – ALAMY Image ID:3A74ERG Original Notes (Japanese): 紡績娘 – 久都和牟志（クツワムシ）、蟋蟀 – 伎利藝利須（キリギリス）