. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE LOCUST BORER. 11 SpwvrraMfi Oy/i/i/c/ It should bo iviuemboroJ tluit all tin- holes t'ouiKl in a trcf and all other damage by the borer are not thi^ work of one ^^'iicration, luit usually that of repeated animal attack during the life of the tree; also, that a burrow in the sapwood of a young tree riMuains the same burrow in the heartwood of the old tree, without change, except in the healing of the original entrance; therefore the number of borers and the amount of damage each year is not so great as it migh
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE LOCUST BORER. 11 SpwvrraMfi Oy/i/i/c/ It should bo iviuemboroJ tluit all tin- holes t'ouiKl in a trcf and all other damage by the borer are not thi^ work of one ^^'iicration, luit usually that of repeated animal attack during the life of the tree; also, that a burrow in the sapwood of a young tree riMuains the same burrow in the heartwood of the old tree, without change, except in the healing of the original entrance; therefore the number of borers and the amount of damage each year is not so great as it might appear, and, while each female is doubtless capable of depositing more than a hundred (}gg>^^" it would ap- pear from the writer's observations that oidy a small percentage of the larv;e hatch- ing from them survive the bark-infesting stage or complete their development to the adult stage. This suggests that any method of management which will insure the de- struction of a large number of larva' and beetles each year will reduce the damage to a point where there will !)(> practically no loss. SUGGESTIONS FOR CONTROLLING THE INSECT AND PREVENTING LOSSES. With our i)resent knowledge of the life history and hattits of the locust l)orer. it would appear that the following sugges- tions might V)e of practical value in the control of in>ects in large plantations and forests. The fact that the young larva- from eggs deposited during the -;ununt'r remain in the outer bark duiMnu the winter and do not enter the wood until the following May suggests that if locust for all purposes were <'ut between November and May. the bark removed from that })ortimaindei' luirned. it would destroy \a-«t numbers of the ins«H-ts and conti"il»ute greatly toward the prot may l)e detected duiing May. fTune. and .Inly by the ejected sap and l»oring>. suggests thi> simple method of locating such trees, which should be cut close to the gi'ound and burned, before the liist of .
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