. Bush-fruits; a horticultural monograph of raspberries, blackberries, dewberries, currants, gooseberries, and other shrub-like fruits. Berries. 268 BUSE-FECITS certain indication of its presence. Rarely only a single cane will be affected, and then if a crown-borer is not found, the presence of this insect in the main root is almost ; Remedies.—'^Whenever signs of its presence are noted, it should be at once sought for and destroyed. It is more common in old, carelessly kept fields, and, where numerous in such places, it will be better to grub out and burn all suspected stocks, a
. Bush-fruits; a horticultural monograph of raspberries, blackberries, dewberries, currants, gooseberries, and other shrub-like fruits. Berries. 268 BUSE-FECITS certain indication of its presence. Rarely only a single cane will be affected, and then if a crown-borer is not found, the presence of this insect in the main root is almost ; Remedies.—'^Whenever signs of its presence are noted, it should be at once sought for and destroyed. It is more common in old, carelessly kept fields, and, where numerous in such places, it will be better to grub out and burn all suspected stocks, and replace them by new plants. This should be done before the middle of June, to prevent the maturing of the ; The Raspberry-cane Borer (Fig. 40) Oherea bimaculata (Oliv.)—Order Coleoptera : Family Cerambycida? Saunders, Ins. Inj. Frts. 305. Lintner, N. Y. Rep. 5: 231. Comstock and Slingerland, Bull. Cornell Exp. Sta. 23: 122. Saperda tripunctata, Fabr. Harris Ins. Inj. Veg. lU (Flint Ed.). Oberea tripunctata (Fabr.). Bethune, Canad. Ent. 9: 226. Saunders, Rep. Ent. Soc. Out. 1873: 9. Oberea perspicillata, Hald. Riley, Mo. Rep. G: 111. The larva of this species is a footless grub, similar to the round-headed apple- tree borer in form, found boring in both ° . Fig. 40. Cane-borer, blackberry and raspberry canes. It is best ^^^^^^ bimaculata. known as a raspberry insect, but in Bulletin 23 of the Cornell University Experiment Station, from which the following quotations are taken, an instance is recorded of serious injury to blackberries. In this ease the boring larvae were found only in the bearing canes, wliile in raspberries they attack the young shoots. "The mature insect is a long-horned, slender-bodied beetle about half an inch in length. It is of a deep black color, except the segment next the head, the prothorax, which is yellow. There are usually two or three black spots on the upper part of this segment, but frequently these are Please n
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