BACTHUR LÍQUIDO is an insecticide that controls lepidoptera. The insecticide action is by ingestion (it does not act by contact or inhalation) of the treated leaves. After ingesting a lethal dose, the grub stops feeding. The toxic crystals of deltaendotoxin disintegrate the grubs digestive system. Affected grubs move slowly, discolor, shrink, blacken and after 23 days die.