Show BORERS HARM APPLE TREES if round headed variety Is not de strayed at once they often destroy tree entirely WY C F NIVEN clem clemson s on agricultural college the borers rank among the roost most destructive tive enemies of the apple trees there tire are two classes of them tile the round headed borer which works at the base of the tree and the flathead flat fiat head ed which works well up on the trunk and in the crotches of large limbs round headed borer barer the presence ot of this insect Is usually detected it at the base of the tree by the little pile of sawdust castings thrown out from an opening through tile the bark into its burrow often several borers can be found in one tree this borer works near the base of the trunk burrowing up and down often going below th the surface of the soil the burrow begins in the bark bar and sap wood nood I 1 but soon extends for several inches into the solid wood often reaching the 31 W it Z M J castings of round headed borer heart of small trees if the borers tire are not destroyed they often become so numerous as to destroy the tree entirely flat headed borer this insect Is found on the upper portion of the trunk of the tree and in the crotch of large limbs while the damage done by it la Is sometimes very great yet it is hardly so destructive as the borer this borer does not go in so deep as the round headed yet it sometimes girdles a limb and even the trunk healthy trees are rarely attacked by this borer therefore farm tanners who are careful with their trees need not fear it to any great extent |