The manchineel, known sometimes as the beach h,” or as arbol de la muerte, “tree of death.” apple, or more accurately in Spanish-speaking countries as la manzanilla de la muerte, which translates to “the little apple of death,” or as arbol de la muerte, “tree of death.”.the manchineel, known sometimes as the beach apple, or more accurately in Spanish-speaking countries as la manzanilla de la muerte, which translates to “the little apple of death.all parts of manchineel are extremely poisonous, and "interaction with and ingestion of any part of this tree may be lethal".The tree produces a thick, milky sap, which oozes out of everything - the bark, the leaves and even the fruit - and can cause severe, burn-like blisters if it comes into contact with the skin.