. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THK LOCIST 11 It should bo nMiicnilKMvd that all tlic holes found in a tree and all otliei' damage hy the l)orer are not the work of one genei-ation, hut usually that of re[)eated annuiii attack during the life of the tree; also, that a hurrow in the sapwood of a young tree remains the sanio burrow in the heartwood of the old tiee. without change, except in the healing (d" the original entrance: therefore th nund)er of borers and the amount of damage each year is not so great as it nught ai)pear, and
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THK LOCIST 11 It should bo nMiicnilKMvd that all tlic holes found in a tree and all otliei' damage hy the l)orer are not the work of one genei-ation, hut usually that of re[)eated annuiii attack during the life of the tree; also, that a hurrow in the sapwood of a young tree remains the sanio burrow in the heartwood of the old tiee. without change, except in the healing (d" the original entrance: therefore th nund)er of borers and the amount of damage each year is not so great as it nught ai)pear, and, while each female is doubtless cjipable of depositing more than a himdred ; it woidd ap- pear from the writer's observations that only a small percentage of the larvte hatch- ing frt)m them survive the bark-infesting stage or com[)lete their development to the adult stage. This suggests that any method of management which will insure the de- struction of a large numl)er of larviv and beetles each year will reduce the damage to a point where thiM'o will b(^ practically no loss. SUGGESTIONS FOR CONTROLLING THE INSECT AND PREVENTING LOSSES. With our i)resent knowledge of the life history and hal)its of the locust borer, it would a})pear that the following sugges- tions ndght be of practical value in the control of insects in large plantations anfl forests. The fact that the young larva' from (>gg> deposited during the summer remain in the outer bark during the winter and do not enter the wood until the following May suggests that if locust for all purposes were cut l)etween November and May. the bark removed fiom that portion which is of value, and the remainder burned, it would destroy vast numbers of the insects and contrilnite greatly toward the protection of the remaining growth. The fact that badly infested trees may l>e detected during May. »lune, and .hdy by the (^ject«d .sap and borings, suggests this sim|)le method of locating such trees, which shou
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