Show diet of japanese beetle the japanese beetle was int inart deuced into the united states in larval form in earth around the root of a plant from japan the ada beetle which is about three eighths of an inch long and about the sallie width prefers to eat apple applet lo 10 quinces peaches sweet cherries cherri ct blackberries ri plums grapes ver and corn when ti hese ese ar are e BI available it attacks the foliage shade trees and ornamental shrub sheils sh nils the adult beetle is brie bright metallic green in color with coppery br bract oo 00 wing covers it flies easily old a has a voracious appetite therell there only one generation each year aag W sixths sixtus of the time being spent the soil as egg larva or pups pupa |