敌百虫

trichlorphon C4H8Cl3PO4, organic phosphate used as insecticide / also called dipterex

hundred / numerous / all kinds of

variant of 蟲|虫[chong2]

lower form of animal life, including insects, insect larvae, worms and similar creatures / CL:條|条[tiao2],隻|只[zhi1] / (fig.) person with a particular undesirable characteristic

enemy / to be a match for / to rival / to resist / to withstand