Novel phenyl hydantoin compounds are disclosed of the structure: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen, amino, nitro, halogen, hydroxy, substituted and unsubstituted lower alkyl, cycloalkyl, phenyl and lower alkenyl; and R.sub.3 is substituted and unsubstituted lower alkyl, lower alkenyl and cycloalkyl; as well as pesticidal methods employing said novel compounds; and pesticidal compositions containing said novel compounds.