31. The leaves grow back, but so do the caterpillars, defoliating the tree repeatedly. 32. Outbreaks of sawfly larvae can defoliate trees and may cause dieback, stunting or death. 33. The plant should never be completely defoliated . 34. The adult defoliates plants which are often already weakened by larval damage at the roots. 35. Trees are completely defoliated when outbreaks occur. 36. On occasion, this species develops enormous populations and defoliates entire areas with koa trees. 37. They are leaf-rollers and are often so numerous as to defoliate the trees. 38. At first bamboo shoots are collected from bamboo forest then defoliated and boiled in water. 39. His dad once had a nearly defoliated tree in the back yard to show for it. 40. They take over and defoliate everything,
